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We stock PCV Valve parts for most Jeep models, including CJ5, CJ7, Cherokee, Commander, Compass, Grand Cherokee, Liberty, Patriot, Wrangler.

Forecast
2005 Jeep Grand Cherokee PCV Valve 8 Cyl 4.7L Forecast

P311-34F97B4    W0133-1675676  New

Qty:
$28.95
Forecast PCV Valve
Brand: Forecast
Additional Fitment Information:
Vehicle Block Engine CID CC
2005 - Jeep Grand Cherokee V 8 Cyl 4.7L 287 -
Mopar
2008 Jeep Grand Cherokee PCV Valve 8 Cyl 4.7L Mopar

P311-40910C2    W0133-1880738  New

Qty:
$47.38
Mopar PCV Valve
  • 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.
Brand: Mopar
Additional Fitment Information:
Vehicle Block Engine CID CC
2008 - Jeep Grand Cherokee V 8 Cyl 4.7L 287 -
Mopar
2008 Jeep Grand Cherokee PCV Valve 8 Cyl 4.7L Mopar

P311-40910C2    W0133-1880738  New

Qty:
$47.38
Mopar PCV Valve
  • 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.
  • Incl.Grommet
Brand: Mopar
Additional Fitment Information:
Vehicle Block Engine CID CC
2008 - Jeep Grand Cherokee V 8 Cyl 4.7L 287 -
Mopar
2011 Jeep Wrangler PCV Valve Mopar

P311-332875E    W0133-1913815  New

Qty:
$14.49
Mopar PCV Valve
  • 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.
Brand: Mopar
Additional Fitment Information:
Vehicle
2011 - Jeep Wrangler
Mopar
2018 Jeep Compass PCV Valve Mopar

P311-40495E3    W0133-1931649  New

Qty:
$21.07
Mopar PCV Valve
  • 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.
Brand: Mopar
Additional Fitment Information:
Vehicle
2018 - Jeep Compass
Mopar
2018 Jeep Wrangler JK PCV Valve Mopar

P311-304F953    W0133-2008658  New

Qty:
$88.13
Mopar PCV Valve
  • 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.
  • PCV Valve 68083202AC Must Be Used Along With PCV Hose 68105838AB
Brand: Mopar
Additional Fitment Information:
Vehicle
2018 - Jeep Wrangler JK
Standard Ignition
1970 Jeep J-3700 PCV Valve 8 Cyl 5.7L Standard Ignition

P311-0A2456C    V112  New

6421131 , 6420876 , PCV281 , 6422058 , 6421972 , 6421974 , 6418754

Qty:
$5.07
Standard Ignition PCV Valve
  • PCV Valve
  • Product Attributes:
    • Connector Gender: No Connector
    • Contents: Valve
    • Hose Size - Inches: 3/8
    • Hose Size - mm: 10 Mm
    • Nipple Orientation: Straight
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
1970 - Jeep J-3700 V 8 Cyl 5.7L 350 -
Standard Ignition
1984 Jeep Wagoneer PCV Valve 6 Cyl 2.8L Standard Ignition

P311-08C4B7E    V188  New

PC87 , 53000960 , 8995091 , 045-0280 , CV789CB , 9F3 , 28146 , FV191DP , PCV229 , FV200DP , 8953000960 , FV191 , CV789C , PCV82 , 8996046 , 76-2788 , 3-789 , 8-08995-284-0 , 08995284 , 70-9416 , 19022 , HV53 , PV789 , 6P1024 , 8995284 , PCV88

Qty:
$6.19
Standard Ignition PCV Valve
  • PCV Valve
  • Product Attributes:
    • Hose Size - Inches: 7/16", 3/4"
    • Hose Size - mm: Refer To Inches
    • Nipple Orientation: Angled
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
1984 - Jeep Wagoneer V 6 Cyl 2.8L 173 -
Standard Ignition
1993 Jeep Grand Wagoneer PCV Valve 8 Cyl 5.2L Standard Ignition

P311-552E167    V165  New

PCV188 , 4694335 , PC20 , 6P1063 , 8F7 , 28002 , CV761C , 19018 , 76-2568 , PCV207 , PCV66 , 06487087 , 53030564 , FV163 , FV395 , 3671076 , FV163DP , CV761CB , PC270 , 70-9412 , 76-2776 , 5175 351AA , 28062 , PCV200 , 53031135 , FV348 , 3420223 , PV761 , FV348DP , HV17 , 3577098 , 6487087 , 3420224 , 6P1083 , 2-761 , 5175 352AA , PC51 , 3514867

Qty:
$7.06
Standard Ignition PCV Valve
  • PCV Valve
  • Product Attributes:
    • Connector Gender: No Connector
    • Hose Size - Inches: 5/16, 3/8"
    • Hose Size - mm: 8, 10 Mm
    • Nipple Orientation: Angled
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
1993 - Jeep Grand Wagoneer V 8 Cyl 5.2L 318 5211
Standard Ignition
1998 Jeep Cherokee PCV Valve 6 Cyl 4.0L Standard Ignition

P311-409D331    V342  New

PCV403 , 045-0326 , 6P1206 , 76-2630 , PCV237 , 12204-74030 , PC324 , FV392 , CV5056C , PCV277 , 19110619

Qty:
$9.09
Standard Ignition PCV Valve
  • PCV Valve
  • Genuine Intermotor Quality
  • Product Attributes:
    • Connector Gender: No Connector
    • Nipple Orientation: Angled
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
1998 - Jeep Cherokee L 6 Cyl 4.0L 242 -
Standard Ignition
2001 Jeep Grand Cherokee PCV Valve 8 Cyl 4.7L Standard Ignition

P311-08705D8    V365  New

PCV476 , 76-2598 , 6P1082 , 53031777AA , FV412 , PCV236

Qty:
$12.11
Standard Ignition PCV Valve
  • PCV Valve
  • Product Attributes:
    • Contents: Valve
    • Hose Size - Inches: 3/8
    • Hose Size - mm: 10 Mm
    • Nipple Orientation: Angled
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
2001 - Jeep Grand Cherokee V 8 Cyl 4.7L 287 -
Standard Ignition
2004 Jeep Liberty PCV Valve 4 Cyl 2.4L Standard Ignition

P311-0D2D931    V368  New

HV209 , 4777240AC , 6P1066 , PCV334 , PCV479 , FV405 , 76-2593 , PCV231 , 4777240AD , 78157 , 6P1067 , 04777240AD , PV722 , 76-2671 , PV1075

Qty:
$12.01
Standard Ignition PCV Valve
  • PCV Valve
  • Product Attributes:
    • Connector Gender: No Connector
    • Nipple Orientation: Straight
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
2004 - Jeep Liberty L 4 Cyl 2.4L 148 -
Standard Ignition
2002 Jeep Liberty PCV Valve 6 Cyl 3.7L Standard Ignition

P311-411EABA    V373  New

76-2679 , PCV502 , 6P1150 , PCV343 , 214-1999 , 53032800AA , 78158 , PV1084 , 19146028 , FV408

Qty:
$9.52
Standard Ignition PCV Valve
  • PCV Valve
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
2002 - Jeep Liberty V 6 Cyl 3.7L 226 -
Standard Ignition
2005 Jeep Grand Cherokee PCV Valve 8 Cyl 5.7L Standard Ignition

P311-5DAC282    V377  New

42082 , 214-2000 , PCV515 , 76-2727 , 6P1274 , 19146030 , PCV405 , 53032531AE

Qty:
$28.76
Standard Ignition PCV Valve
  • PCV Valve
  • Product Attributes:
    • Connector Gender: No Connector
    • Contents: Valve
    • Hose Size - Inches: 3/8
    • Hose Size - mm: 10 Mm
    • Nipple Orientation: Straight
  • The PCV valve is constructed with high grade industrial plastic with resistance to oil and high engine operating temperatures. This PCV valve contains a machined cut locating tab providing an precise fit locking mechanism so tight air flow and optimal engine performance is obtained. The o-ring is made of Viton material for low and high heat resistance ranging from -15 to 400 deg. F providing a superior oil resistant sealant. All of our PCV valves are manufactured and tested to fit, form, and function to 100% OE quality.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
2005 - Jeep Grand Cherokee V 8 Cyl 5.7L 345 -
Standard Ignition
2006 Jeep Grand Cherokee PCV Valve 8 Cyl 5.7L Standard Ignition

P311-5DAC282    V377  New

42082 , 214-2000 , PCV515 , 76-2727 , 6P1274 , 19146030 , PCV405 , 53032531AE

Qty:
$28.76
Standard Ignition PCV Valve
  • PCV Valve
  • Includes Grommet
  • Product Attributes:
    • Connector Gender: No Connector
    • Contents: Valve
    • Hose Size - Inches: 3/8
    • Hose Size - mm: 10 Mm
    • Nipple Orientation: Straight
  • The PCV valve is constructed with high grade industrial plastic with resistance to oil and high engine operating temperatures. This PCV valve contains a machined cut locating tab providing an precise fit locking mechanism so tight air flow and optimal engine performance is obtained. The o-ring is made of Viton material for low and high heat resistance ranging from -15 to 400 deg. F providing a superior oil resistant sealant. All of our PCV valves are manufactured and tested to fit, form, and function to 100% OE quality.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
2006 - Jeep Grand Cherokee V 8 Cyl 5.7L 345 -
Standard Ignition
2009 Jeep Wrangler PCV Valve Standard Ignition

P311-20D09DA    V413  New

4648973AD , 7B0 103 245 B , 4648973AB , 7B0 103 245 D , 76-2728 , PCV555 , 4648973AA , 4648973AC , 6P1275 , 7B0103245 , PCV406

Qty:
$11.53
Standard Ignition PCV Valve
  • PCV Valve
  • Product Attributes:
    • Contents: Valve
    • Hose Size - Inches: 7/16
    • Hose Size - mm: Refer To Inches
    • Nipple Orientation: Straight
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle
2009 - Jeep Wrangler
Standard Ignition
1995 Jeep Cherokee PCV Valve 6 Cyl 4.0L Standard Ignition

P311-0245559    V432  New

7F2005 , PCV574 , 73-2526 , 47057 , 630-1076 , AF30

Qty:
$8.28
Standard Ignition PCV Valve
  • PCV Valve
  • Product Attributes:
    • Hose Size - Inches: 1/2";3/4"
    • Hose Size - mm: Refer To Inches
    • Nipple Orientation: Angled
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues. As a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product.
Brand: Standard Ignition
Additional Fitment Information:
Vehicle Block Engine CID CC
1995 - Jeep Cherokee L 6 Cyl 4.0L 242 -
Mopar
2009 Jeep Patriot PCV Valve Mopar

P311-036ECF6    W0133-1877953  New

Qty:
$14.83
Mopar PCV Valve
  • 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.
Brand: Mopar
Additional Fitment Information:
Vehicle
2009 - Jeep Patriot
Mopar
2004 Jeep Grand Cherokee PCV Valve 6 Cyl 4.0L Mopar

P311-4EF1ABC    W0133-2574127  New

Qty:
$25.54
Mopar PCV Valve
  • 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.
Brand: Mopar
Additional Fitment Information:
Vehicle Block Engine CID CC
2004 - Jeep Grand Cherokee L 6 Cyl 4.0L 242 -

Latest Jeep Repair and PCV Valve Installation Advice

CarJunky AutoAdvice

engine stalled

Showing 4 out of 7 Posts | Show 3 Hidden Posts
Question From humphrey on engine stalled

I have a jeep liberty 2006, engine 3.7L. I know that the catalytic converter is damaged,because i struck the underside going over a huge rock.My problem is while driving with the damaged cat. the engine stalled and would not restart. On checking i found some oil in the air intake and filter. would the damaged cat. caused the engine to stall and what caused oil to enter the air intake?

Response From nickwarner Top Rated Answer

The oil is likely blowby going through your PCV which draws into the air intake. The PCV valve may need replacement, a cheap and simple fix. The cat is another matter entirely. If its damaged badly the honeycomb in it breaks up and the thing plugs. It won't allow the exhaust gasses to go out. Think of it as trying to breathe through a drinking straw. It definately will stall you out and cause big trouble. Its not cheap but is necessary to repair it before you drive around anymore.

Response From humphrey

Thanks for the answer. Seems a very logic answer. I bought a new direct fit Cat. Cost me $500. should have it by Tuesday also i bought the four O2 sensors.I'll check the PCV valve and change if necessary.Please tell me where is the PCV valve located.

Response From kev2

PCV is located on the FILL TUBE...
Always tell if the CEL is on and if you know codes
will add image as soon as I figure out how to

Response From humphrey

thanks, I'll know what to look for. I'll you guys posted on how and if i solve the problem. Thanks again to all.

Response From Hammer Time

Response From humphrey

Thanks for the diagram showing me the PCV valve.

Jeep oil leak

Showing 2 out of 10 Posts | Show 8 Hidden Posts
Question From rayritten on Jeep oil leak

Hi all I have a 2003 Jeep Liberty.3.7 V6.I noticed a oil leak after last oil change and can't fine it?Its leaking rear engine and I think moving down my Oxygen Sensor line on to the Sensor and burns off...While I drive no leak,after I let sit over nite there is alittle on the exhaust.Not alot but stinks.I checked valve covers and fine,rear seal also looks good.I was told Crankshaft breather may be problem?There in a tube thats right next to the Transmisson drip stick.Looks like vaccum with white spring loaded top on it with oil all around it?Any ideas?

Response From cory89 Top Rated Answer

Ray ritten...... I just bought 03 liberty and I have been chasing the exact same leak as u have. I have changed both valve cover gaskets. Replaced my pcv valve and iv degreased the entire motor and then used the uv dye and I im coming up empty handed. Did u ever figure it out?

Response From Tom Greenleaf

Cory - Please start your own new thread not a 2+1/2 year old one that isn't your exact anything.


This one locked for archives so please start your own,


T

Response From Tom Greenleaf

Did you do the oil change? Either way if this happened right after one hurry and recheck oil filter and drain plug. I suppose by chance an oil pressure sending switch could do this but you or someone should find it whatever it takes to isolate this.

What the heck is "Crankshaft Breather?" A pcv hose might be the issue or a pcv itself isn't installed properly,

T

Response From rayritten

Thanks for the return,I did check PVC hose and PVC which are in the front of this year model.No leaks.And plug and filter,no leaks either.There is a breather plug for the crankshaft sensor and I think there called the samething?Part of the Emissons system.I agree all this because something wasn't done right?Never had a problem like this before..Thank again my friend

Response From Tom Greenleaf

Just know it's your engine at risk no matter where the source is. If this went nuts and leaked out fast and you didn't notice it's the fastest way to destroy an engine. As said, it needs to be found without fail,

T

Response From rayritten

Oh yes I know that,just wanted to see if anyone had any idea's before I take it in and go in blind,know what I mean..They can say it's anything from Seal to Head gasket and what ever cost more I'am sure they'll try lol Can't trust anyone anymore sad to say...Thank you again Tom

Response From nickwarner

Believe it or not, not every shop is out to screw their customers. We simply are the bearer of bad news. A few bad apples taint our reputation. On this site are nothing less than certified techs, dealer trained techs and shop owners. The very people that are accused of scalping the wallet of the working man. The cars today are built with way more expensive parts and much more complicated systems that require an immense amount of knowledge to diagnose. To diagnose them, we have to buy tools that cost way more than the car you brought to us to have fixed. So don't point the accusation finger to fast. This isn't a board of shadetrees here and we've all invested more in the tools it takes to fix your jeep than you ever paid for it. You will get professional advice for free, and we charge for it on the job. Even David Copperfield won't show you where the rabbit went.

Response From rayritten

Thanks Nick for your come-back.I do understand the cost and what good shops have to deal with.No way I would group all shops sameway.And as far as finger pointing I wouldn't point at all unless 100% sure of why the pointing?I think this board is great,one of the reason's I do post and have told others what good advice is HERE.Sorry if I offended anyone,but simple facts are,there are way to many that do try and rip people off doing work unneeded..And I'am sure most that do try and take advanage don't really come here anyway...Sorry again if missed understood...

Response From Tom Greenleaf

No - for years I find this trade is no worse than any other. Bad shops or worse telling you work was done and did nothing don't last long,

T

1996 Grand Cherokee Rough Idle and poor MPG

Showing 6 out of 9 Posts | Show 3 Hidden Posts
Question From ffemt5530 on 1996 Grand Cherokee Rough Idle and poor MPG

1996 Jeep Grand Cherokee Laredo 4.0 (160,500 miles)
-What I’ve replaced thus far-
STARTER (TWICE)
IGNITION COIL (TWICE)
BOTH OXYGEN SENSORS
CATALYTIC CONVERTER
MUFFLER AND TAIL PIPE
CRANKSHAFT POSITION SENSOR
CLEANED THROTTLE BODY
CLEANED IDLE AIR CONTROL VALVE
AIR FILTER
FUEL FILTER
RAN LUCAS THREW ENGINE SEVERAL TIMES
RAN OCTANE BOOST THROUGH ENGINE SEVERAL TIMES
SPARK PLUGS
WIRES
CAP
FUEL PUMP RELAY
STARTER RELAY
BATTERY
REPLACED TWO SCREWS ON PCM (READ THAT THIS REMEDY WORKED FOR SOME, BUT NOT FOR ME)
HAD JEEP CHECKED FOR VACUUM LEAK, NONE REPORTED
CHECKED PCV VALVE AND CLEANED IT (ALL LOOKED GOOD)
CHECKED MANIFOLD FOR LEAKS, NONE REPORTED
HAD FUEL PRESSURE CHECKED-REPORTED IN NORMAL RANGE

*HAD JEEP CHECKED BY FIVE DIFFERENT MECHANICS (ONE WAS EVEN THE DEALERSHIP) AND HAD IT HOOKED UP TO MANY DIFFERENT DIAGNOSTIC TESTING EQUIPMENT-ALL SAID THAT THERE WAS NOTHING WRONG WITH MY JEEP.


*At this time I have no check engine light.


*The issue is that my jeep will run great, but when I take it on long distance trips (1-2 hours) it starts to act up. The problem is that approximately an hour (usually) into the trip I will come to a stop light and have to stop and my jeep will idle at abnormal rpms (between 100 and 200). My jeep never stalls, however. When I give it gas the rpms increase just like normal, or if I shift it into neutral the rpms will shoot up to normal ranges as well. Also, I am experiencing terrible gas mileage and I can smell the exhaust inside of my car. Finally, I am experiencing somewhat hard shifting while at higher speeds and sometimes when I’m in a lower gear and the engine is working to downshift to maintain a certain speed at which I’m traveling. This has been a ten month annoyance of mine and all the mechanics I have been to at this point have failed. I am looking for the answer to my problem, but any help is appreciated. Thanks so much!

Response From mink88

same problems but it does it right off,im about to pay a bum to drive into a local jeep dealers show room ,e
i have replaced all three sensors on the throtle intake,starter,batery,pcm,relays,fuses,cut the cat out put new one in,new o2 sensors, no wires crosed or out of place,replaced cap rotar,wires,plugs,

on subject off subject had to pull two relays nothing on at all but massive drain on battery,second i cut the cat out because of massive carbon build up, the night i cut it out replaced with welded pipe an o2 sensors it got 18 to 22 mpg home 30mile drive, next day went back to running like crap with new added problem you can be drive fine bad mpg and it sputers if you mash the gas does nothing but about stals out let of the gas goes back to okay idle then it goes back to almost stalling to very loud back fireing, with thick black carbon smoke cloud.

Response From Hammer Time

This is a 2 year old thread. If you have a question, please start a new thread.

Response From ffemt5530

Also, would a bad chain cause me to have poor gas mileage?

Thanks

Response From Sidom

A loose timing chain could cause some of your problems & would definitely affect fuel economy. With your setup there is 2 ways to check it. One would be to put a breaker bar on the crank & move the crank back & forth while looking at the rotor in the dist, noting how long it takes to go from one direction to the other. There is no real spec for movement, it come down to experience. The 2nd which is a little more accurate is to hook up a lab scope to the cam & crank sensors & check the sync of the patterns while running, noting for movement while reving the engine. Any thing more than 10º out indicates something is going on.

From what you've said I would probably start off with making sure there in no exhaust leaks. You should never be getting exhaust gases into the cabin. Those have had problems with their exhaust manifolds & an exhaust leak would affect your gas mileage, it would lean out the exhaust gases making the comp compensate by adding more fuel. a look at the fuel trims would help confirm this.

As far as the low idle, I would be looking at the IAC pretty close. Those are a dual coil IAC and in the past I've had problems with one coil going bad & not setting a code, also since it is electrical, the failure was only happen when hot & under load.........

Response From ffemt5530 Top Rated Answer

Thanks again for responding. I have checked for leaks in the exhaust manifold. I was told to spray some type of fluid (I used WD 40 and Throttle Body Cleaner) around the exhaust manifold while it was running. I found no leaks. Everything from the catalytic converter (including the cat) is brand new-just put on approximately one month ago. Just a note-the exhaust smell in my cabin only appeared whenever I was coming to a stop, and it was only a faint amount unless I opened the window. It is a smell of unburned gas because my engine is running either too lean or too rich. Would a faulty IAC give me poor gas mileage, and is changing a timing chain a simple task?

Thanks

Response From re-tired

A very high percentage of jeeps were indeed fixed with the pcm screws , Go back and try backing out those screws a couple of turns .If no change ,go to a salvage yard and get a pcm harness and swap it out. One other thing ,look down at front of eng in the opening in front of #1 exhaust tube and see if the harness is stuck to it.

Response From ffemt5530

The contents of your response is an entirely new concept to me as I have never heard of this or had this mentioned to me by any of the mechanics I've been to. That being said, could you be gracious enough to tell me what that is, where it's located, and how I would go about checking to see if what you have recommended is bad?

I have read A LOT of different forums relating to my problem and all of them indicate that it could be a bad EGR, IAC, Map Sensor, or Throttle Position Sensor. I am just wondering if you are dismissing any of those as the answer to my problem.

Sorry if I sound like I'm prying, it's just that I have been spending a lot of time and money on trying to fix this problem and I'm fed up. I'm really placing a lot of hope in this particular forum to end my many months of anger and frustration.

Thanks again!

Response From Tom Greenleaf

I think this engine uses a timing chain. They can be erratic and fool techs.


Check for lash in that chain. 160K is enough even for real chains vs known maint for the rubber ones,

T

1993 jeep grand cherokee runs rough and dies

Showing 2 out of 4 Posts | Show 2 Hidden Posts
Question From roses327 on 1993 jeep grand cherokee runs rough and dies

I have a 1993 Jeep Grand Cherokee, I don't know the engine size, but it's a 6cylinder with 132,000 miles on the original engine. I've replaced the fuel pump, fuel filter, put new fuel injectors on, and had a tune-up because the car started running really rough. It even started vibrating when I would come to a stop light. So I had all this replaced and now the car is running worse instead of better. Since I had the fuel injectors changed, my car now dies when I start it up and even when I'm driving, it feels like it's going to die and then sometimes it does. When I put it in neutral, it seems to idle more evenly. And it didn't do this until my mechanic put on new fuel injectors. My mechanic believes that it's the whole unit the fuel injectors are connected to. Can anyone help me out with this?

Response From Hammer Time

Who's doing the diagnosis for replacing all these parts?
Is the check engine light coming on at all?

Response From roses327 Top Rated Answer

My mechanic has been working on this.....my check engine light just started coming on after he replaced the fuel injectors, but I've always had problems with my computer malfunctioning. The airbag light won't go off at all and the onboard computer has never worked.....it's always flashed.....only the clock works. What my mechanic has said now is that I should probably have a diagnostic done on the engine. He did disconnect a hose and it's running better, but when I turn in on in the morning.....it will die until it's warm, but I have to rev the engine until it's warm.....do you have any ideas? Could it be the PCV valve that making it choke?

Response From Hammer Time

This guy calls himself a mechanic? He's telling you to get a diagnostic done? What has he been doing?
You just need to find a real technician, not just a guy with wrenches that works cheap.