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Best Selling Genuine Chevrolet Heater Cores

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  • Constantly Updated Inventory of Chevrolet Replacement Heater Core Parts
APDI
1999 Chevrolet C2500 HVAC Heater Core APDI - Heater Core

P311-2E0DE66    9010214  New

3091316 , 60059 , 98483 , 90527 , 52452915 , 8240 , 96011 , 42893483 , 90483 , 398240 , 94483

Qty:
APDI HVAC Heater Core
  • HVAC HEATER CORE
  • Heater Core
  • Product Attributes:
    • Construction: Aluminum
    • Core Depth (in): 1
    • Core Height (in): 8-1/4
    • Core Width (in): 7-1/2
    • Inlet Connection (in): 3/4
    • Outlet Connection (in): 5/8
  • Heater - GM
Brand: APDI
Additional Fitment Information:
Vehicle
1999 - Chevrolet C2500
APDI
1998 Chevrolet C6500 Kodiak HVAC Heater Core - Front APDI - Heater Core

P311-2E0DE66    9010214  New

3091316 , 60059 , 98483 , 90527 , 52452915 , 8240 , 96011 , 42893483 , 90483 , 398240 , 94483

Qty:
APDI HVAC Heater Core  Front
  • HVAC HEATER CORE
  • Heater Core
  • Product Attributes:
    • Construction: Aluminum
    • Core Depth (in): 1
    • Core Height (in): 8-1/4
    • Core Width (in): 7-1/2
    • Inlet Connection (in): 3/4
    • Outlet Connection (in): 5/8
  • Heater - GM
Brand: APDI
Position: Front
Additional Fitment Information:
Vehicle Position
1998 - Chevrolet C6500 Kodiak Front
ACDelco
2000 Chevrolet Silverado 2500 HVAC Heater Core 8 Cyl 5.3L ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
Brand: ACDelco
Additional Fitment Information:
Vehicle Body Drive Type Block Engine CID CC
2000 - Chevrolet Silverado 2500 Extended Cab Pickup RWD V 8 Cyl 5.3L 325 5328
ACDelco
2004 Chevrolet Silverado 3500 HVAC Heater Core 8 Cyl 6.6L ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; with Heavy Duty Heater
Brand: ACDelco
Additional Fitment Information:
Vehicle Submodel Body Block Engine CID CC
2004 - Chevrolet Silverado 3500 LS Crew Cab Pickup V 8 Cyl 6.6L 403 6599
ACDelco
2005 Chevrolet Silverado 2500 HD HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; Excludes Heavy Duty Heater
Brand: ACDelco
Additional Fitment Information:
Vehicle Submodel
2005 - Chevrolet Silverado 2500 HD Base
ACDelco
2005 Chevrolet Avalanche 2500 HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; w/o Heavy Duty Heater
Brand: ACDelco
Additional Fitment Information:
Vehicle
2005 - Chevrolet Avalanche 2500
ACDelco
2007 Chevrolet Avalanche HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; Exc.Custom Front Floor Console
Brand: ACDelco
Additional Fitment Information:
Vehicle
2007 - Chevrolet Avalanche
ACDelco
2006 Chevrolet Tahoe HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; ForMain Heater
Brand: ACDelco
Additional Fitment Information:
Vehicle
2006 - Chevrolet Tahoe
ACDelco
2008 Chevrolet Suburban 1500 HVAC Heater Core 8 Cyl 5.3L ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; Exc.Heavy Duty Heater
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2008 - Chevrolet Suburban 1500 V 8 Cyl 5.3L 325 5328
ACDelco
2007 Chevrolet Silverado 2500 HD HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; ForAuxiliary Unit
Brand: ACDelco
Additional Fitment Information:
Vehicle
2007 - Chevrolet Silverado 2500 HD
ACDelco
2008 Chevrolet Silverado 1500 HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; For Auxiliary Heater
Brand: ACDelco
Additional Fitment Information:
Vehicle
2008 - Chevrolet Silverado 1500
ACDelco
2010 Chevrolet Suburban 1500 HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; For Main Heater
Brand: ACDelco
Additional Fitment Information:
Vehicle
2010 - Chevrolet Suburban 1500
ACDelco
2010 Chevrolet Silverado 3500 HD HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; w/Tubes
Brand: ACDelco
Additional Fitment Information:
Vehicle
2010 - Chevrolet Silverado 3500 HD
ACDelco
2013 Chevrolet Silverado 1500 HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; W/ Dual Zone Climate Control
Brand: ACDelco
Additional Fitment Information:
Vehicle Submodel
2013 - Chevrolet Silverado 1500 XFE
ACDelco
2013 Chevrolet Suburban 1500 HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; For Primary HVAC
Brand: ACDelco
Additional Fitment Information:
Vehicle
2013 - Chevrolet Suburban 1500
ACDelco
2005 Chevrolet Silverado 1500 HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; Excludes Custom Front Compartment Floor Console
Brand: ACDelco
Additional Fitment Information:
Vehicle Fuel Type
2005 - Chevrolet Silverado 1500 ELECTRIC/GAS
ACDelco
2007 Chevrolet Silverado 2500 HD Classic HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; w/o A/C
Brand: ACDelco
Additional Fitment Information:
Vehicle
2007 - Chevrolet Silverado 2500 HD Classic
ACDelco
2007 Chevrolet Silverado 3500 Classic HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; Air Cond
Brand: ACDelco
Additional Fitment Information:
Vehicle Submodel Body
2007 - Chevrolet Silverado 3500 Classic WT Standard Cab Pickup
ACDelco
2006 Chevrolet Silverado 3500 HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; Air CondExc.Custom Front Floor Console
Brand: ACDelco
Additional Fitment Information:
Vehicle Submodel Body
2006 - Chevrolet Silverado 3500 WT Extended Cab Pickup
ACDelco
2007 Chevrolet Silverado 1500 HVAC Heater Core ACDelco

P311-5B06141    W0133-1687122  New

Qty:
$287.62
ACDelco HVAC Heater Core
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; Dual Zone Climate Control
Brand: ACDelco
Additional Fitment Information:
Vehicle Submodel Engine Designation
2007 - Chevrolet Silverado 1500 LT LH6

Latest Chevrolet Repair and Heater Core Installation Advice

CarJunky AutoAdvice

Chevrolet S10 Heater Issue

Showing 7 out of 10 Posts | Show 3 Hidden Posts
Question From DudeItsCristhian on Chevrolet S10 Heater Issue

Hey, I own a 1994 Chevrolet S10 Pickup with a 2.2L engine. The mileage is 122,5XX. I am currently having trouble with the heater as it blows lukewarm air in heater and defroster mode. After checking under the hood, I noticed two pipes without a hose connected to either one in the back. Does anyone know which specific hoses I need? Also, could anyone tell me if there's more that could be causing the heater issue? Thanks in advance for any help!

Response From DudeItsCristhian

Quite sad that I come to a forum searching for a little help and answers from others who are more car savvy, yet I get mocked for my lack of mechanical knowledge. Sidom, if the case is that the heater core is leaking, I shouldn't have too much of a trouble of finding one and replacing it. My question now is, what are the names of the two hoses I need and do I need to buy any other accessory for the heater core?

Response From Sidom Top Rated Answer

Pls don't take their replies in the wrong light.... Just a little bit of light natured humor, nothing directed at you.
I can be the worst offender at times but the only way I got out of my cage today was by promising to say in line...

Doing the heater core is actually a pretty big job, which involves a lot of dash work. Depending on you level of expertise it may or may not be in your range...

If you look at that heater hose going in frt of the heater core, that is one of the hoses that goes on to the heater core. They just took that hose and put it on the fitting for the other hose, kinda of a loop to take the core out of the picture. You may need to go to the parts store to get another piece of heater hose to go from the other heater core fitting to the engine....

I would hook the core back up and see what you got....More than likely it's leaking but you will never know until you hook it back up and run it......

Do that & let us know what you have......My database is down right now but I'm fairly certain the dash needs to come out on this one to replace the core....

Response From DudeItsCristhian

I understand. I just want to learn more on how to deal with cars from others that know what they're doing and in no means want to bypass anything or fry my engine. The previous owner rigged this thing up pretty badly so I need to go back and fix it one piece at a time. I will go let you know once I get the hose hooked up what's up.

Response From Hammer Time

The hoses are off for a reason. I'm sure the heater core is leaking into the truck and that's why it was bypassed so you need a new heater core and that is a major job on the truck.

Response From Hammer Time

if the case is that the heater core is leaking, I shouldn't have too much of a trouble of finding one and replacing it.

You know, it really is something that makes us giggle. That heater core is an 8 hour job for a professional. Excuse me,but if you can't identify the heater hoses, you have no business even considering that repair.

Response From Sidom

Heater cores don't usually get bypassed for no reason, usually it's because they are leaking...

You can see the heater hose if front of the heater core pipes in your picture. You can hook the 2 hoses back up, but more than likely the heater core is leaking....

Response From Hammer Time

It's pretty hard to have any heat when the heater isn't hooked up..........

Response From Discretesignals

LMAO

Response From Tom Greenleaf

LMAO II - go ahead and bypass a heater core and don't complain when engine is blown!

T

heater core replacement

Showing 2 out of 2 Posts
Question From aarongates25 on heater core replacement

I have a 2001 Chevrolet Monte Carlo Ls 3.4v6 I need to know where the heater core is and what is involved with replacing it or can I bypass it for the time being?

Response From Hammer Time Top Rated Answer

Sure, you can bypass it if you can live without heat or defrosters..........
That's no fun in some states.

2003 Chevrolet Venture Heating Problem

Showing 2 out of 11 Posts | Show 9 Hidden Posts
Question From lawden on 2003 Chevrolet Venture Heating Problem

I am currently experiencing a heating problem with my 2003 Chevrolet Venture. When the van is idiling, the heat stops blowing and slowly gets cold. When I start traveling again, the heat begins working again. Coolant levels are ok and all hoses appear to be sealed and in working order. I was told that a valve could be responsible for not keeping the heat in when the car is idiling and then closes when the car begins traveling creating the necessary vaccum pressure to push the heat into the passenger compartment of the vehicle. Any ideas what else to look for and to bring the heat back into our car in this most necessary time of the year?

Response From Tom Greenleaf

It's still blowing air right? If coolant flow thru core is weak this could happen. I'd feel the heater hoses and see if there is a sudden drop off in temp along their route. Vacuum may control air direction and a heater control valve in some cars (not sure for this one) but vacuum is higher at idle then going along so that's not the likely problem so far.

Sometimes the water pump impeller itself isn't up to snuff and just needs more RPMs to push coolant around. Personally that problem has never happened with car for me but it has been reported here and elswhere that it in fact can be the source of a problem like that,

T

Response From lawden

Yes, air is still flowing, it is just cold when idling. A visual inspection of the hoses found that they appeared to be o.k., but I must admit that I do not know which hoses are the heater hoses. Any suggestions on where I can find a schematic to determine their placement within the engine compartment? What are my options if coolant flow thru the core is weak? Flush the heater core?

Response From Tom Greenleaf

Flushing system would be a good thing anyway. Heater hoses are dang near universal in that input line is 5/8 hose and output 3/4 hose. They should go towards firewall on passenger's side. Usually the input line starts near the water pump and may go thru a heater control valve with either or both electrical controls and a diaphragm to control water flow for selected temps.

The input line would be engine temp (watch that!) and would stay about the same temp to the control valve if used and on to firewall. You might have to wait a bit but if it get cold along the route then something is wrong there. The output hose is less temp if heater is blowing the hot air but could be the same if it can't exchange the heat.

Weak coolant flow for any reason - low coolant, plugged, would result in less heat. Since driving along seems to make it behave then the flow is in question - we know that.

Sometimes things as simple as the pressure cap isn't holding pressure can alter the volume of warm/hot coolant to core. Any air in the system just messes up all diagnosing so you always need to know that's not a factor.

I'm no thinking of a wild variety of problems because you said it behaves when driving along,

T

Response From lawden Top Rated Answer

Ok...The heater core has been flushed with no problems noted. The hoses have been checked signaling proper air flow across the heater core. I was told that a possible check valve might be responsible for the problem. A repair manual has been consulted for the vehicle and no mention of a check valve is made, but the book is not very thorough. Does this vehicle have a check valve and could this be the source of the problem? Thanks for your ongoing help.

Response From Tom Greenleaf

Just looked and couldn't find a heater control valve listed for this vehicle?? That would be in line to adjust water flow thru core and not all systems do it that way. I think this uses an electrical actuator for a temp blend door in distribution box plenum. I would think if that wasn't diverting desired air flow % thru heater core it would be warmer at low speeds so let's not make that conclusion quite yet.

Feel the in and out hoses to the core when it's idling and blowing cold. Are then both hot or both cold? Then try lowest fan but highest heat request and rev up to about 1,500 RPM and see if hoses warm and air get warm in cabin.

Let's see if we can narrow down the possibilities of what's up with this,

T

Response From lawden

Tom,
Recently the van has now began to leak antifreeze. I had a mechanic look at it and say that it is the intake gaskets that need replaced. I had these replaced in Nov. of 2006. Do they need replaced already? I called around for a service quote and was told anywhere from $500-$1300 with the dealerships winning the upward total (suprising I know). Does this sound right?

Response From Tom Greenleaf

The intake manifold gasket are somewhat common and there was or is a settlement with GM about this - check on that for the cost of the first round. I've never heard of this twice! OE gasketing stunk and the OE dex-cool was blamed for problems with the whole cooling system not just gaskets.

Quote of $1300 seems way too high! What was to be done with that? $500 around here would be more like it - perhaps less. Gasket are cheap - it's a labor thing. Aftermarket gaskets are frequently better than originals in my experience.

Check on that GM/DexCool settlement. All I know is that the V8s were excluded for some reason?? Something with the Dex-cool anti-freeze was different and caused plugging up of things real early. I've not seen it in person but there are tons of pics of fairly new GM V6 and some others with gummy rust that would collect even at the radiator caps and showed dismantled engines that were a nightmare.

You might find the pic at www.GoHTSN.com - I think they discuss the problems. Hope you keep records. This could be one of those problems?? Look for gunk at the radiator cap for now and something has to give with it leaking anyway. You do not have to use the OE Dex-cool anti-freeze again as far as I know. I won't again,

T

Response From Tom Greenleaf

http://www.gohtsn.com/article_1084.shtml


That should hav info on the settlement,

T

Response From lawden

Thanks, the first time I had it done, I thought I would be good for more than the year and a half it has been since it was replaced. Now looking at another repair bill, this is getting tiring. I think that this is probably the source of my heating problems as well. What will the settlement mean for me? I have only used Dex-Cool antifreeze because that is what the manual said to use. What do you recommend I use from now on? I will not use it anymore if I don't have to.

Thanks for your help

Response From Tom Greenleaf

Des-Cool is still an "EG" anti-freeze - 'Ethylene-Glycol' based product. It first claimed it didn't need to be changed for 5 years and it's a different color as you know. In general it's best to ge with what a manufacturer suggests for a vehicle and that's where GM got caught up as there apparently were enough problems with it's properties to cause real engine problems associated with not controlling corrosion.

For some time engines have used more alloys and things that needed extra help and along comes this product and the vehicles clearly stated to use only that in them.

I've seen the pics of engines torn down that showed incredible build up and damage that ruined parts that would ordinarily last the life of a vehicle.

With anti-freeze the level of freeze protection does not expire with EG but the additives do. I have dealt with vehicles off new car warranties and read the product claims looking for "Meets or exceeds new car requirements" and have done well with that.

I'm seeing brand name products with no color added with claims to be compatible with the other EG based products out there and will start using that with the next change out/flush when vehicles are past warranty.

The gasket problems have happened to many of these vehicles but I was blaming that on the original gasket and still have not seen the damage that this original anti-freeze is blamed for causing. You are the first I've heard of with a second go around with the gasket - and with a 5 or so year old vehicle!! Something isn't right with that!

T

heater/ac door location needed

Showing 2 out of 6 Posts | Show 4 Hidden Posts
Question From jack frausto on heater/ac door location needed

Location of the heater/ac door on a 1989 chevrolet 1500 4x4 5.7l. The heater core is not blocked. I changed the therm and the input hose is warm while the output is cool. So I need to find out the location of the door to open or close to pass this hot air. I live in Wisconsin and a snow storm is to be here again for christmas.

Response From steve01832

Hi Jack. Let the engine get to normal operating temperature. Then grab the heater hoses. If they are both hot, the core has good circulation through it. If one hose is hot and the other is cold, the core is restricted and needs to be replaced.

Steve

Response From re-tired Top Rated Answer

Item #9 is the blend door actuator . Remove it and carefully turn the shaft with pliers ,clockwise and then counter clockwise with eng warmed up and blower on. If you feel heat the actuator is bad .

Response From jack frausto

Ok the only question i now have is do I have to remove the dash to remove or check? I also have replaced the heater core and still no heat. I have taken the truck into a local mechanic who mainly works on engine and trany issues. He told me that he looked at the door and was working properly and has no idea what may be the issue with everything that I have replaced and checked. So now I am still back to square one. I have let the truck run and adjust the heater while the truck is running. From cold to hot, and still no heat. I need the truck to tell me what is wrong so I can fix it and move on to the other issues it has.
The truck also heaitates when I accelerate then catches and takes off. This could be a separate issue, but I was told that the coolant temp sensor is the reson the truck is hesitating. Just wondering if these issues are separate or could have something to do with each other?

Response From re-tired

How did the mechaic Look at the door ? You cannot see the door operate from outside . THe actuator may be running , you can put your hand on it and feel in hum, but the shaft may be broken (it does happen). The only way to tell for sure is to take the actuator off and manually turn the door fom stop to stop. The link I sent shows where the actuator is .You do not need to remove the case to remove the actuator . The best way to solve a problem is to elminate one possible cause at a time . This should be one you things to check with own eyes .

Response From jack frausto

yeah i removed the accuator and i still have no heat. when i closed the door it only switched the air flow from heater to vent, not only that, but i tried to get it to defrost just kept blowing through vent.

Is there a coolant sensor and if so how do u remove and replace?

2000/Chevrolet/Cavalier/Cooling Leakage

Showing 2 out of 15 Posts | Show 13 Hidden Posts
Question From bambino12 on 2000/Chevrolet/Cavalier/Cooling Leakage

Hello All!

I own a Chevrolet Cavalier year 2000, 2.2L engine. It is about 70 000 miles

There is a leakage in my cooling system.

Drops do not come either from radiation nor from coolant deposit, nor from the water pump.

I can see drops coming from a strange pipe.

Im bad to explain things, I attach a picture

There you can see the plastic pipe Im talking about. Also, you can see the coolant pond on the floor.

About a month ago I took my car to service (tunning, refill all levels, oil change, engine wash and so on). I wonder if the guys at the service center forgot to connect something.

Also, I don't use this car too much, I only use it on weekends. Last weekend I just noticed a bad smell (like something burning) and that´s the way I noticed there was a leakage, it was the smell of hot coolant fluid. I also replaced the deposit's cap, since the previous one just broke, I guess because of the heat.

I noticed then the "low coolant level" warning light in my dahsboard.

Thanks all!!!!

Response From Tom Greenleaf Top Rated Answer

That little rubber elbow is to let water (condensate) from the air conditioner out in season when they make water in humid weather. The same case (inside car) hold the heater core which is a miniature radiator for heat. If that leaks it could leak engine coolant out that hose but usually there is a sign on the right interior floor or if you look up under there it might show some coolant - is slippery in fingers compared to plain water - wash hands please if you get it on them.

That's what the thing looks like to me. I could be wrong and a heater core replacement should be verified by someone checking that out in person. Sometimes a hose can leak or have a pin hole that squirts like fishing line and make some place show coolant and the leak isn't there at all!

I'd have the system pressure tested and point out where you have seen coolant but don't make the diagnosis for them or you just may get a heater core and not need it! Fill cooling system now with proper mix of anti-freeze and water - usually 50/50 - filled at radiator first and then the tank (recovery) that you can see the level in. If this doesn't have a radiator cap it will have to be filled by taking a hose up high off as it may not draw in coolant from just the recovery tank when low enough to make the light come on or if the leak won't allow the vacuum action to draw it back in,

T

Good luck,

T

Response From bambino12

Hello Tom!!

I think you are rightm although my car lacks Air Conditioner system. In any casse I think you and Jim are right.

Will check the interior floor.

By the way, this morning I filled the deposit(recovery tank). Im not sure if radiator has any cap.

Well, I just filled deposit/recovery tank to the indicated level when cold.

Then I turned on the engine for about 5 minutes.

I looked at the floor, I noticed drops, continuos, not a line of fluid, just drops but very continuos, I would say about two drops per second.

It took me some time to identifie such elbow pipe that seems to go nowhere (as Jim said)

Will check the floor.

Many thanks!!

Response From Tom Greenleaf

That elbow pipe is just a drain for moisture if what I'm thinking and shouldn't have coolant either way as said. If all you have is a pressure radiator (even if not on the radiator itself) cap on the tank you added to then that cap is the pressure cap - if you have to unscrew it, it is the pressure cap and you could leave it loose to stop the dripping or slow it down. That tank is not capable of filling the whole cooling system once the level you can't see is down and you said a light was on which is probably sensing liquid in an end tank of the radiator itself which should always be full even though you can't see it.

This needs to be looked at and almost certainly is needing a new heater core. They almost always drip into the car when they are the leak as you have noticed.

If you leave the pressure cap loose that's just a temporary way to slow down the loss of coolant - not a fix. Don't lose the cap either.

You would get some coolant into the radiator and hence engine by just filling that reservior and start engine for a while - like just enough to show the temp needle coming up and shut it off - just wait till it's cool and it probably has taken back some coolant from that tank. If so - do that a few times till "low coolant" light is out and your next trip should be short and to get this taken care of. Now is a good time to be thankful for not having A/C as that would make the job much more complicated and expensive.

Hey - if you are going to drive this at all like this pay sharp attention to the gauges. Run heater on full heat request and low fan and if that goes cool on you the coolant is low or boiling - odd but an overheating car doesn't heat the interior thru the heater! This is probably just in need of the heater core right now and if you pay strict attention and do not overheat the car it would really help limit any further problems from overheating.

Good luck with it,

T

Response From Lando10101

Regardless of anything the system will have to be opened find a good mechanic some of them heater cores require major teardown . Good Luck

Response From bambino12

Tom and Lando,

Thanks again for all of your valuable help.

I keep note of your advice and it is amazing how much one can learn from this forum.

Tomorrow I will take it to my mechanic that is less than a mile away from home.

I pray this would not be an expensive repairment.

I will report any progress.

Thanks again!

Response From Tom Greenleaf

Thanks for letting us know. This car with no air conditioning should be MUCH easier to do what is usually a difficult job. I doubt it would be cheap but having to deal with A/C components can be more than half the work of replacing a heater core. Either way it's not really a good do it youself job unless you have some strong know how with these sorts of things - it's involved with assorted dash parts to get the case apart and or out to replace it,

T

Response From bambino12

Hello Tom, Jim, etc..

This morning I just took the car to my usual mechanic.

He did exactly the same diagnostic as you. It is the heat core. He explained me that this much like a small radiator that works to heat the air for defroster.

He gave me the option of totally disconnect such damaged radiator, and do some sort of bypass to avoid it and have the cooling system working just fine, at the price of lacking defroster.

I decided to go the expensive way. He is charging me about $300 bucks for all the job, including a new heat core.

I sometimes doubt wether mechanics really install original brand new parts. I decided to trust him as he is giving me warranty.

Do you think I got a good deal? Was I fooled?

many thanks!!

Response From Tom Greenleaf

That sounds great! You can bypass the heater in some circumstances as a temporary measure. It couldn't be something you could live without with any ice or defrosting need though - at least around here.

That's a nice price. Keep in mind that many cars that have A/C that must be emptied and refilled to do this job and that part alone would cost what your whole job is quoted for. Some of the cores can be fixed but most people today would replace them.

Good luck. All seems fair to me,

T

Response From Double J

I'm with Tom there....

Thats a super deal.....

Thanks for posting back.....

JIm

Response From Double J

Is that just a small elbow type hose,that comes out the firewall and goes nowhere..
If so..thats the evaporator case drain...
The heater core is probably leaking.
Do you notice any coolant inside on the passenger floorboard under the carpet?
Any unusual steam coming up thru the defrost duct..film on the windshield?
Thats what the pic's look like....

Response From bambino12

Hello Jim!

Yeah!!

I think you are right.

My car doesn't have Air Conditioner, but it certainly has defrost/ventilation fan.

And the smell certainly comes from the defrost/ventilation ducts.

I will check about coolant inside the passenger floorboard.

Also, will turn on the defrost to see if some steam is forming on the windshield.

As I use my car little (only on weekends and for very short trips) I have not had time to look at details, but will do some testing.

So.... is the heater core some kind of device that heats the air for defrost purposes?

Do you think it would imply an expensive repair? Just don't want me to be fooled by my mechanic.

Many thanks!!!!!!!

I will report my findings! This forum is great!

Response From Tom Greenleaf

Same heater core for heat or defrost. Not sure if the drain hose is still used for car without A/C or not but it shouldn't be leaking coolant there either way,

T

Response From Tom Greenleaf

Hey Jim! Same thought except you were more concise!

T

Response From Double J

Great minds think alike...

I'm a man of few words...
Wished I could explain fully like you do.
You "Paint" the better picture for sure