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  • Beck Arnley
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    Gates
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Shop for Top Selling Genuine Nissan Altima Thermostats

  • We Stock the following top leading brands, including Beck Arnley, Stant, Gates, Genuine
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We also have Thermostat parts for other Nissan models, including 300ZX, 350Z, 370Z, Altima, Armada, D21, Frontier, Maxima, Murano, Pathfinder, Pickup, Quest, Rogue, Sentra, Titan, Versa, Versa Note, Xterra.

Beck Arnley
2004 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.5L Beck Arnley

P311-11B8ADF    143-0833  New

Qty:
$15.06
Beck Arnley Engine Coolant Thermostat
  • THERMOSTAT
  • WATER CONTROL VALVE; Includes Gasket/Seal TEMPERATURE 205
  • Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.
Brand: Beck Arnley
Additional Fitment Information:
Vehicle Submodel Block Engine CID CC
2004 - Nissan Altima Base L 4 Cyl 2.5L 152 2488
Beck Arnley
2005 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.5L Beck Arnley

P311-45471BB    143-0818  New

Qty:
$15.82
Beck Arnley Engine Coolant Thermostat
  • THERMOSTAT
  • ORIGINAL EQUIPMENT TEMPERATURE; Gasket/Seal Not Included TEMPERATURE 180
  • Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.
Brand: Beck Arnley
Additional Fitment Information:
Vehicle Block Engine CID CC
2005 - Nissan Altima L 4 Cyl 2.5L 152 2488
Stant
2001 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.4L Stant - Superstat ® Thermostat

P311-3A5987E    45967  New

553070 , 62337 , 2028-170 , 33747S

Qty:
$9.26
Stant Engine Coolant Thermostat
  • Superstat ® Premium Thermostat
  • Temperature 170 Degrees OE Temperature
  • Superstat ® Thermostat
  • Product Attributes:
    • Bypass Plate Diameter (in): 1.092
    • Flange Diameter (With Seal) (in): N/a
    • Flange Diameter (Without Seal) (in): 2.125
    • Height from Flange to Top of Bridge (in): 0.78
    • Temperature (F): 170 Degrees
  • Premium Superstat thermostat. Uses high venturi for maximum cooling capacity during high temperature, high load oepration. 25% larger piston in diameter that delivers 1 1/2 the power of standard thermostats. Stanless steel flange is burnished to a bright finish for stress relief and added corrosion resistance. Thicker flange.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
2001 - Nissan Altima L 4 Cyl 2.4L - 2389
Stant
2001 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.4L Stant - Superstat ® Thermostat

P311-3A5987E    45967  New

553070 , 62337 , 2028-170 , 33747S

Qty:
$9.26
Stant Engine Coolant Thermostat
  • Superstat ® Premium Thermostat
  • Temperature 170 Degrees Gasket not required, use silicone; OE Temperature
  • Superstat ® Thermostat
  • Product Attributes:
    • Bypass Plate Diameter (in): 1.092
    • Flange Diameter (With Seal) (in): N/a
    • Flange Diameter (Without Seal) (in): 2.125
    • Height from Flange to Top of Bridge (in): 0.78
    • Temperature (F): 170 Degrees
  • Premium Superstat thermostat. Uses high venturi for maximum cooling capacity during high temperature, high load oepration. 25% larger piston in diameter that delivers 1 1/2 the power of standard thermostats. Stanless steel flange is burnished to a bright finish for stress relief and added corrosion resistance. Thicker flange.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
2001 - Nissan Altima L 4 Cyl 2.4L - 2389
Stant
2001 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.4L Stant - OE Type Thermostat

P311-223CEAC    13967  New

467170 , 3 , 212000C810 , 2120040F00 , 467-170 , 367-170 , 395-170 , 32148 , 1430710 , 367170 , 810-170 , 381-170 , 710170 , 395170 , 810170 , 2028-170 , 2120053J00 , 1430717 , 710-170 , 143-0717 , 32337 , 2120053J10 , 33747 , 03

Qty:
$8.90
Stant Engine Coolant Thermostat
  • Stant OE Type Thermostat
  • Temperature 170 Degrees Gasket not required, use silicone; OE Temperature
  • OE Type Thermostat
  • Product Attributes:
    • Bypass Plate Diameter (in): 1.092
    • Flange Diameter (With Seal) (in): N/a
    • Flange Diameter (Without Seal) (in): 2.125
    • Height from Flange to Top of Bridge (in): 0.78
    • Temperature (F): 170 Degrees
  • Original equipment design. Made of durable material for a long lasting life. Stainless steel assembly engineered for a smooth performance.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
2001 - Nissan Altima L 4 Cyl 2.4L - 2389
Stant
2001 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.4L Stant - OE Type Thermostat

P311-0294541    13968  New

33748 , 5012-80 , 1430717 , 422180 , 143-0717 , 322-180 , 32148 , 422-180 , 32149 , 103 , 8943324661 , 322180

Qty:
$8.71
Stant Engine Coolant Thermostat
  • Stant OE Type Thermostat
  • Temperature 180 Degrees Gasket not required, use silicone; Alternate Temperature
  • OE Type Thermostat
  • Product Attributes:
    • Bypass Plate Diameter (in): 1.092
    • Flange Diameter (With Seal) (in): N/a
    • Flange Diameter (Without Seal) (in): 2.125
    • Height from Flange to Top of Bridge (in): 0.78
    • Temperature (F): 180 Degrees
  • Original equipment design. Made of durable material for a long lasting life. Stainless steel assembly engineered for a smooth performance.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
2001 - Nissan Altima L 4 Cyl 2.4L - 2389
Stant
2006 Nissan Altima Engine Coolant Thermostat - Upper 4 Cyl 2.5L Stant - OE Type Thermostat

P311-581BD02    15112  New

21230EL00B , 21230EL01B , 21230EL00A , 212306N20A , 34160 , 21230-EL00A , 212303RC0A , 212306N200 , 21230-8P300 , 7457-205 , 457-205 , 212303RC1A , 31641 , 455192 , 212308P300

Qty:
$8.03
Stant Engine Coolant Thermostat  Upper
  • Stant OE Type Thermostat
  • Temperature 205 Degrees With Seal Included OE Temperature This part is also available in the Engine Coolant Thermostat Kit 114KT, which contains 10227 (Radiator Cap), 14678 (Engine Coolant Thermostat) and 74000 (Engine Coolant Temperature Sensor)
  • OE Type Thermostat
  • Product Attributes:
    • Bypass Plate Diameter (in): N/a
    • Flange Diameter (With Seal) (in): 2.21
    • Flange Diameter (Without Seal) (in): 2.04
    • Height from Flange to Bottom (in): 0.82
    • Height from Flange to Top of Bridge (in): 0.78
    • Temperature (F): 205 Degrees
  • Original equipment design. Made of durable material for a long lasting life. Stainless steel assembly engineered for a smooth performance.
Brand: Stant
Position: Upper
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2006 - Nissan Altima Upper L 4 Cyl 2.5L 152 2488
Stant
2006 Nissan Altima Engine Coolant Thermostat - Lower 4 Cyl 2.5L Stant - OE Type Thermostat

P311-3784A60    14678  New

1430824 , 1430833 , 427-180 , 395180 , 31548 , TX14582D , 1430818 , 22006N20 , 21200-6N210 , 33941 , 426-180 , 21200-EA000 , 212006N210 , 21200EA000

Qty:
$12.85
Stant Engine Coolant Thermostat  Lower
  • Stant OE Type Thermostat
  • Temperature 180 Degrees With Seal Included OE Temperature This part is also available in the Engine Coolant Thermostat Kit 114KT, which contains 10227 (Radiator Cap), 15112 (Engine Coolant Thermostat) and 74000 (Engine Coolant Temperature Sensor)
  • OE Type Thermostat
  • Product Attributes:
    • Bypass Plate Diameter (in): 1.1
    • Flange Diameter (With Seal) (in): 2.3
    • Flange Diameter (Without Seal) (in): 2.15
    • Height from Flange to Top of Bridge (in): 0.74
    • Temperature (F): 180 Degrees
  • Original equipment design. Made of durable material for a long lasting life. Stainless steel assembly engineered for a smooth performance.
Brand: Stant
Position: Lower
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2006 - Nissan Altima Lower L 4 Cyl 2.5L 152 2488
Stant
2014 Nissan Altima Engine Coolant Thermostat - Upper 4 Cyl 2.5L Stant - OE Type Thermostat

P311-581BD02    15112  New

21230EL00B , 21230EL01B , 21230EL00A , 212306N20A , 34160 , 21230-EL00A , 212303RC0A , 212306N200 , 21230-8P300 , 7457-205 , 457-205 , 212303RC1A , 31641 , 455192 , 212308P300

Qty:
$8.03
Stant Engine Coolant Thermostat  Upper
  • Stant OE Type Thermostat
  • Temperature 205 Degrees With Seal Included OE Temperature This part is also available in the Engine Coolant Thermostat Kit 116KT, which contains 10267 (Radiator Cap), 14678 (Engine Coolant Thermostat) and 74165 (Engine Coolant Temperature Sensor)
  • OE Type Thermostat
  • Product Attributes:
    • Bypass Plate Diameter (in): N/a
    • Flange Diameter (With Seal) (in): 2.21
    • Flange Diameter (Without Seal) (in): 2.04
    • Height from Flange to Bottom (in): 0.82
    • Height from Flange to Top of Bridge (in): 0.78
    • Temperature (F): 205 Degrees
  • Original equipment design. Made of durable material for a long lasting life. Stainless steel assembly engineered for a smooth performance.
Brand: Stant
Position: Upper
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2014 - Nissan Altima Upper L 4 Cyl 2.5L 152 2488
Stant
2014 Nissan Altima Engine Coolant Thermostat - Lower 4 Cyl 2.5L Stant - OE Type Thermostat

P311-3784A60    14678  New

1430824 , 1430833 , 427-180 , 395180 , 31548 , TX14582D , 1430818 , 22006N20 , 21200-6N210 , 33941 , 426-180 , 21200-EA000 , 212006N210 , 21200EA000

Qty:
$12.85
Stant Engine Coolant Thermostat  Lower
  • Stant OE Type Thermostat
  • Temperature 180 Degrees With Seal Included OE Temperature This part is also available in the Engine Coolant Thermostat Kit 116KT, which contains 10267 (Radiator Cap), 15112 (Engine Coolant Thermostat) and 74165 (Engine Coolant Temperature Sensor)
  • OE Type Thermostat
  • Product Attributes:
    • Bypass Plate Diameter (in): 1.1
    • Flange Diameter (With Seal) (in): 2.3
    • Flange Diameter (Without Seal) (in): 2.15
    • Height from Flange to Top of Bridge (in): 0.74
    • Temperature (F): 180 Degrees
  • Original equipment design. Made of durable material for a long lasting life. Stainless steel assembly engineered for a smooth performance.
Brand: Stant
Position: Lower
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2014 - Nissan Altima Lower L 4 Cyl 2.5L 152 2488
Stant
2018 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.5L Stant - OE Type Thermostat

P311-3784A60    14678  New

1430824 , 1430833 , 427-180 , 395180 , 31548 , TX14582D , 1430818 , 22006N20 , 21200-6N210 , 33941 , 426-180 , 21200-EA000 , 212006N210 , 21200EA000

Qty:
$12.85
Stant Engine Coolant Thermostat
  • Stant OE Type Thermostat
  • Temperature 180 Degrees With Seal Included
  • OE Type Thermostat
  • Product Attributes:
    • Bypass Plate Diameter (in): 1.1
    • Flange Diameter (With Seal) (in): 2.3
    • Flange Diameter (Without Seal) (in): 2.15
    • Height from Flange to Top of Bridge (in): 0.74
    • Temperature (F): 180 Degrees
  • Original equipment design. Made of durable material for a long lasting life. Stainless steel assembly engineered for a smooth performance.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
2018 - Nissan Altima L 4 Cyl 2.5L 152 2488
Stant
2014 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.5L Stant - OE Type Thermostat

P311-581BD02    15112  New

21230EL00B , 21230EL01B , 21230EL00A , 212306N20A , 34160 , 21230-EL00A , 212303RC0A , 212306N200 , 21230-8P300 , 7457-205 , 457-205 , 212303RC1A , 31641 , 455192 , 212308P300

Qty:
$8.03
Stant Engine Coolant Thermostat
  • Stant OE Type Thermostat
  • Temperature 205 Degrees With Seal Included OE Temperature; Upper
  • OE Type Thermostat
  • Product Attributes:
    • Bypass Plate Diameter (in): N/a
    • Flange Diameter (With Seal) (in): 2.21
    • Flange Diameter (Without Seal) (in): 2.04
    • Height from Flange to Bottom (in): 0.82
    • Height from Flange to Top of Bridge (in): 0.78
    • Temperature (F): 205 Degrees
  • Original equipment design. Made of durable material for a long lasting life. Stainless steel assembly engineered for a smooth performance.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
2014 - Nissan Altima L 4 Cyl 2.5L 152 2488
Stant
2014 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.5L Stant - OE Type Thermostat

P311-3784A60    14678  New

1430824 , 1430833 , 427-180 , 395180 , 31548 , TX14582D , 1430818 , 22006N20 , 21200-6N210 , 33941 , 426-180 , 21200-EA000 , 212006N210 , 21200EA000

Qty:
$12.85
Stant Engine Coolant Thermostat
  • Stant OE Type Thermostat
  • Temperature 180 Degrees With Seal Included OE Temperature; Lower
  • OE Type Thermostat
  • Product Attributes:
    • Bypass Plate Diameter (in): 1.1
    • Flange Diameter (With Seal) (in): 2.3
    • Flange Diameter (Without Seal) (in): 2.15
    • Height from Flange to Top of Bridge (in): 0.74
    • Temperature (F): 180 Degrees
  • Original equipment design. Made of durable material for a long lasting life. Stainless steel assembly engineered for a smooth performance.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
2014 - Nissan Altima L 4 Cyl 2.5L 152 2488
Stant
2015 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.5L Stant - OE Type Thermostat

P311-3784A60    14678  New

1430824 , 1430833 , 427-180 , 395180 , 31548 , TX14582D , 1430818 , 22006N20 , 21200-6N210 , 33941 , 426-180 , 21200-EA000 , 212006N210 , 21200EA000

Qty:
$12.85
Stant Engine Coolant Thermostat
  • Stant OE Type Thermostat
  • Temperature 180 Degrees With Seal Included This part is also available in the Engine Coolant Thermostat Kit 116KT, which contains 10267 (Radiator Cap), 15112 (Engine Coolant Thermostat) and 74165 (Engine Coolant Temperature Sensor)
  • OE Type Thermostat
  • Product Attributes:
    • Bypass Plate Diameter (in): 1.1
    • Flange Diameter (With Seal) (in): 2.3
    • Flange Diameter (Without Seal) (in): 2.15
    • Height from Flange to Top of Bridge (in): 0.74
    • Temperature (F): 180 Degrees
  • Original equipment design. Made of durable material for a long lasting life. Stainless steel assembly engineered for a smooth performance.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
2015 - Nissan Altima L 4 Cyl 2.5L 152 2488
Stant
2015 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.5L Stant - OE Type Thermostat

P311-581BD02    15112  New

21230EL00B , 21230EL01B , 21230EL00A , 212306N20A , 34160 , 21230-EL00A , 212303RC0A , 212306N200 , 21230-8P300 , 7457-205 , 457-205 , 212303RC1A , 31641 , 455192 , 212308P300

Qty:
$8.03
Stant Engine Coolant Thermostat
  • Stant OE Type Thermostat
  • Temperature 205 Degrees With Seal Included This part is also available in the Engine Coolant Thermostat Kit 116KT, which contains 10267 (Radiator Cap), 14678 (Engine Coolant Thermostat) and 74165 (Engine Coolant Temperature Sensor)
  • OE Type Thermostat
  • Product Attributes:
    • Bypass Plate Diameter (in): N/a
    • Flange Diameter (With Seal) (in): 2.21
    • Flange Diameter (Without Seal) (in): 2.04
    • Height from Flange to Bottom (in): 0.82
    • Height from Flange to Top of Bridge (in): 0.78
    • Temperature (F): 205 Degrees
  • Original equipment design. Made of durable material for a long lasting life. Stainless steel assembly engineered for a smooth performance.
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
2015 - Nissan Altima L 4 Cyl 2.5L 152 2488
Gates
2002 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.5L Gates - (82°C/180°F)

P311-0945E6B    W0133-1797103  New

Qty:
$27.84
  • OE Type
  • Main - Engine Block
  • Includes Gasket - 82°C/180°F
  • (82°C/180°F)
Brand: Gates
Additional Fitment Information:
Vehicle Block Engine CID CC
2002 - Nissan Altima L 4 Cyl 2.5L 152 2488
Gates
2009 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.5L Gates - (82°C/180°F)

P311-0945E6B    W0133-1797103  New

Qty:
$27.84
  • OE Type
  • Main - Engine Block
  • (82°C/180°F)
Brand: Gates
Additional Fitment Information:
Vehicle Block Engine CID CC
2009 - Nissan Altima L 4 Cyl 2.5L 152 2488
Gates
2018 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.5L Gates - (82°C/180°F)

P311-0945E6B    W0133-1797103  New

Qty:
$27.84
  • OE Type
  • (82°C/180°F)
Brand: Gates
Additional Fitment Information:
Vehicle Block Engine CID CC
2018 - Nissan Altima L 4 Cyl 2.5L 152 2488
Genuine
2006 Nissan Altima Engine Coolant Thermostat 6 Cyl 3.5L Genuine

P311-53972ED    W0133-1722920  New

Qty:
$37.65
  • 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.
  • Main - Engine Block
  • Includes Coolant Outlet Housing - 82°C/180°F
  • 82°C/180°F (OE temp.)
Brand: Genuine
Additional Fitment Information:
Vehicle Block Engine CID CC
2006 - Nissan Altima V 6 Cyl 3.5L - 3498
Stant
2009 Nissan Altima Engine Coolant Thermostat 4 Cyl 2.5L Stant - (96°C/205°F)

P311-3692DE8    W0133-1951096  New

Qty:
$40.55
  • OE Type
  • Water Control Valve
  • (96°C/205°F)
Brand: Stant
Additional Fitment Information:
Vehicle Block Engine CID CC
2009 - Nissan Altima L 4 Cyl 2.5L 152 2488

Latest Nissan Altima Repair and Thermostat Installation Advice

CarJunky AutoAdvice

1996 Nissan Altima GXE heater not heating up.

Showing 3 out of 3 Posts
Question From Twynke on 1996 Nissan Altima GXE heater not heating up.

Hello,

I'm not very car savvy but I will try to give as much information as I can. I own a 1996 Nissan Altima GXE. I believe the engine size is a 3.3 or 3.5 Liter, but I'm not entirely sure. The mileage is 159,000 roughly speaking.

When I turn on my heater the fan works but there is no warm air. When I turn on the A/C it will work with no problems. There were no problems to indicate trouble with the heater, it just stopped working. No bangs, grunts, "dimming of lights", it just stopped producing warm air and only blows cold air. Thinking it was a fuse, my husband replaced them. That did not work. We then thought it was the thermostat but can't find the thermostat to try to replace it.

Can you help us to locate the thermostat to replace it and have you ever heard of this problem before? If so, how did they fix it?

Thank you for your time.

Response From Tom Greenleaf Top Rated Answer

Though I find it rare for failed T stats it does happen. To diagnose - see if upper rad hose gets warm before engine is warm. If so I would replace it and it should be located and engine end of upper radiator hose in a housing. If not that it may need a good flush but that usually is slow decline in heat,

T

Response From Twynke

Thank you, we'll give it a shot.

2005 Nissan altima 2.5

Showing 8 out of 16 Posts | Show 8 Hidden Posts
Question From wmj5299usa on 2005 Nissan altima 2.5

Heater problem-heater works fine on open road
in traffic at light -air gets cooler-accelerate and heat returns
VEHICLE HAS 58000 MILES
PUR NEW IN DEC 2004
ADDED NEW Radiator cap,thermostat was replaced ,also replaced coolant-
mechanic is advising to replace water pump because of wear and not moving enough fluids
any help is appreciated

Response From ara

My 2005 altima does the same thing. I can go outside 10 mins before I leave to start the car for it to be warm for my 2 small children and warm air doesn't blow until I'm half way down the road. My temp gauge is in the middle. It's a pain in the you know what! I bought this car 3 months ago and regret it. Why isn't nissan responsible? I'm horrified to know that so many people are having this issue. I will show this forum to my husband. Thanks.

Response From wmj5299usa


My 2005 altima does the same thing. I can go outside 10 mins before I leave to start the car for it to be warm for my 2 small children and warm air doesn't blow until I'm half way down the road. My temp gauge is in the middle. It's a pain in the you know what! I bought this car 3 months ago and regret it. Why isn't nissan responsible? I'm horrified to know that so many people are having this issue. I will show this forum to my husband. Thanks.


Just purchased a 2011 altima 2.5s and the salesman even cmmented on how much better the heater is in the new Altima's and he is absolutely correct. ON the problem with the heater on the 2005,the best situation is start engine and then turn on heater. If you start car with defroster on you will get intermittent heat and cool air.So yes it's better but it ain't fixed.

Response From Hammer Time

This thread is a year and a half old. Please check dates before posting. We don't address more than one vehicle in a question anyway. please start a new one of your own.

Response From Charlean

Hey Ara and wmj5299usa, I'm new to this forum . . . u are absolutely correct, Nissan shld do something about this. I'm having the same issue as we speak. I too, feel better to know that there are others who are hvng the same issue and that I'm not hallucinating. I hv a 2005 Nissan Altima 2.5 - the heat inside was very comfortable at the low setting and now I find myself hvng to blast it at hi and still isn't hot, but lukewarm. When I'm at a stop light, it cools and when I accelerate, it goes to lukewarm. I never had to adjust the temp to hi, always low. I had my radiator hose replaced b/c of leaking and thought that wld fix the heating issue. When I left the dealer after the hose was replaced, my heat was where it was suppose to be at a low setting. After a few hours, unfort., it went back to being lukewarm. They did pressure test which was fine, but noticed that the lower hose wasn't getting as warm as it shld; therefore, they suggested that it could be the therm. This wld cost $243, so I purchased the part ($25) from Nissan and dropped it off at another place this morning. B-4 they installed the therm. they did their own testing and called me a few minutes ago to tell me that they don't think it's the therm. They suggest that I wait until the weather breaks and they'll do another test on it to see if anything has changed. They mentioned that as long as I'm getting some air and the guages inside is normal, to hold off . . . no use in spending money on something that may not fix the problem.
If you have your car checked out, plz let me knw what they suggest.

Response From Tom Greenleaf

Just a thought on this:

If this is somewhat common to this exact car and engine then it could be a design flaw.

BTW: Many cars and I'd bet this one included are made for both right and left hand drive. Heater cores are normally placed on the right side of interior where in the US a passenger would sit such as to allow more room for driver controls and heater box designs could be (don't know all for sure) mirror imaged to fit either drive type and should be.

Perhaps this car has a VERY long path of heater hosing that isn't adequate or waterpumps that could be enhanced to remedy the problems - IF THIS IS HAPPENING IN EXTREMES. I have a hard time believing that in moderate conditions this would apply as I'd think the flaw would have been noticed before production of so many vehicles.

As said - just a thought,

T

Response From Charlean

I contacted Nissan today and informed them that there are multiple people having this same problem . . . hopefully, they will look into it. In the meantime, I am scheduled to get a diagnostics test done next week if money allows me to . . . we'll see

Response From way2old

I agree with your mechanic. If impellers are worn, the pump can not pump enough coolant at idle to keep the heat up to normal temps.

Response From wmj5299usa

Thank you, wise one.I felt pretty good about his assesment but wanted a second opinion.You have been extremely helpful.

Response From wmj5299usa

Back to square one.Finished installing new water pump and absolutely no change in heater temperature.heater is fine when in service on highway,any slowdown causes drop in temperature.OLD water pump seemed fine(no wear on impellers)

Response From Loren Champlain Sr

Although this is a Tom question, vacuum loss or faulty blend door actuator?

Response From Tom Greenleaf


Self portrait !

No Tom and Kitty don't have all the answers. Generally this would be a water flow problem and may still be. What probably would be noted is WHERE the heat went as input hose should be hot to touch and return cold if it transferrred all that was available. Coolant should win the transfer battle and have enough to return warm coolant still with just a heater core.

Thnking??????? At speed there's a lot more flow and temp of coolant is probably at it's most as allowed by thermostat. The "residence" time of air matters too. I think available heat has been transferred and a return hose will be found cool/cold in this car. They are usually designed to limit pressure from water pump using a few concepts - smaller hose to inlet, retriction in the inlet hose, water flow regulator (AKA-Heater Control Valve if used) in line on inlet hoses. Return line must have a clear path back to engine with little restriction. Just maybe return gets some problem or pressure slowing the flow at lower rpm.

Hoses just might have a flaw in them. If all items flush thru properly both ways it kind of rules that all out.

Question for this is does the temp remain constant or fluctuate. I'm wondering if prescribed leakage past thermostat allows engine to run too cool at lower speeds - complete "I dunno" so far and would be checking temps all over this thing to see and feel what temps are where??

T

Response From Loren Champlain Sr

Self portrait? I knew you had to better looking than Kitty!

Response From wmj5299usa

Tom or whomever, on highway at normal speed the heater is perfect.As soon as you start slowing down there is a temperature drop,when you come to complete stop the air is cool and continues on cool until you accelerate.sittin and idling the car has 1 hose hot and the other hose is cool. If you accelerate the cool hose becomes warm again.My mechanic said the only thing left is the heater core .In early morning start ups the defroster will not melt ice on windshield.You must scrape windshield or sit in car and press accelerator.

Response From hubbardk Top Rated Answer

Hey. I was just wondering if you ever got that heating issue sorted out. I have a 2005 Altima 2.5L with the exact same problem. (And it's really cold here in January!)

Response From Tom Greenleaf

I'm not ready for a heater core just yet as this works "perfectly" as you said with RPMs up.

Flow isn't adequate OR the engine is ridding itself of heat too easily elsewhere??

Tests:

1. Check upper hose right after thermostat upon cold start up. It should stay dang near COLD till gauge starts to read a credible temp on dash gauge. The idea of a thermostat is to lock coolant inside engine - allow mixing within engine (the bypass system) and allow whatever temp of coolant available to heater core. That hose frequently will begin near waterpump - may or may not have a water flow regulator on way to core and be unrestricted for return. Some engines use the heater core as a bypass for the engine. This bypass thing is about keeping the engine ONE uniform temp, side to side, front to rear which is imperitive for even expansion of metal and not allowing a hot spot at a distant corner from the water pump which is always working BTW - not just when heat or engine is hot.

1a. If upper hose gets even slightly warm a few inches away from thermostat towards radiator then I'll declare the thermostat is leaking past itself too much. In colder weather it doesn't take much radiator with an idling engine to stay cold. Engines generally make abundant heat such that a heater core alone won't prevent it from reaching a normal operating temperature.

2. Does this engine read a "normal" operating temp and stay there? It should reach a spot in normal range and stay there the whole time it's running. Only minimal variations are acceptable - usually too hot for a moment before fans can catch up, at start up after short shut down, or perhaps a sudden slowdown (from hwy speeds) to stop in traffic on hottest of days with A/C having been blasting.
NEED TO KNOW THIS AS FOR THE MOMENT I SUSPECT THERMOSTAT IMPROPERLY INSTALLED OR DEFECTIVE if temp won't stay put.

You notice the temp drop of hoses to core so heat gets exchanged but we still don't know if volume is the problem or the heat went elsewhere - meaning not inside the car.

YOU or mechanic need to follow the path of heat available from heater hose where it starts at engine, see if there's any obstruction or device along the way that might be faulty. I'd try flushing the core just to satisfy myself but I'll bet it's fine. It must flush from first hose at engine to open last connection to engine for return hose to verify the hoses (never seen one faulty but could) do carry coolant and force them both directions. It's possible that multiple ply hose can separate inside and unseen causing blockage

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Oddities for this complaint: Anti-freeze 100% pure - not mixed with water! EG is a terrible heat exchanger which is why all say mix 50/50 --- some less! Subnote: 50/50 will read -34F protection - lower(colder) #s not wanted.

Other work: If something else has been done and too much gasket sealer plugged an item this could be trouble.

Thermostats: Ones mounted vertically on engines or hard to get at can fall out of place when assembling causing too much cooling - mentioned earlier.

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It's possible that the core is truly plugged up but this is dang early for a 2005 model vehicle IMO. Have you followed coolant change schedules since new? If clogged with corrosion debris it would likely show elsewhere too.

Keep at it and as said - not ready for the heater core yet!

T

99 Nissan Altima radiator replaced now car temperature gauge problem

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Question From Guest on 99 Nissan Altima radiator replaced now car temperature gauge problem

My 99 Nissan altima radiator was replaced due to leaking. I drove the car home and noticed that the temperature gauge jumped to cold every time I pressed on the gas. Mechanic changed the water sensor, left the shop and turned right back around because I noticed now the temperature gauge jump up to hot in less than 2 miles. Mechanic changed the thermostat and thermo sensors, still has the problem. Please help he is trying to say it had noting to do with him replacing my radiator.

Response From dmac0923 Top Rated Answer

try bleeding the coolant system again. it sounds like there is an air bubble still trapped inside there.