Car overheating even after replacing temperature sensor and radiator fans won't turn on even after replacing them

Asked by Oct 07, 2016 at 11:09 PM about the 2008 Nissan Altima 2.5 SL

Question type: Maintenance & Repair

Even after replacing the temperature sensor and
radiator fans and putting a new fan relay, my car is
overheating.  But when running the OBD II test the
fans turn on. Can you tell me whats wrong?

4 Answers

35

Has the engine been overhauled? If so check and make sure none of the ports where the water flows between the cylinders are not obscured, check for a blown head gasket, and then I would check the water pump. Let me know if I was any help.also check your thermostat

35

As far as the fans go you could have a bad clutch in your fan assembly.

35

Radiator cap make sure the seal on it is good, and run a pressure check, on it

Engine has not been overhauled, gasket is fine, I replaced both fan relays the fan still wont turn on. But when I do the OBD II test fan turns on and when I unplugged the harness from the cooling sensor. The fans turn on and the cooling sensor is new...however when I test drove the car, it would bogg out and can only go a certain rpm. Can you tell me whats wrong? I put in new fan relays, new fan assembly, and new sensor but the fan only turns on when I do the OBD II test and when I unpkigg the harness from the sensor.

Your Answer

Add photo

Related Questions

Altima

Looking for a Used Altima in your area?

CarGurus has 85,233 nationwide Altima listings starting at $695.

ZIP:

Search Nissan Altima Questions

Nissan Altima Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,830
#2 FordNut
FordNut
Reputation 1,160
#3 Cassie Sapphire
Cassie Sapphire
Reputation 590
View All

Related Models For Sale

Used Nissan Maxima
402 Great Deals out of 25,051 listings starting at $1,500
Used Honda Accord
1,165 Great Deals out of 77,422 listings starting at $969
Used Toyota Camry
1,439 Great Deals out of 99,762 listings starting at $700
Used Honda Civic
1,122 Great Deals out of 64,641 listings starting at $1,195
Used Nissan Sentra
748 Great Deals out of 52,503 listings starting at $1,800
Used Toyota Corolla
1,308 Great Deals out of 67,496 listings starting at $1,399
Used Hyundai Sonata
934 Great Deals out of 49,585 listings starting at $700
Used Chevrolet Malibu
1,093 Great Deals out of 78,493 listings starting at $2,495
Used Nissan Altima Coupe
97 Great Deals out of 1,912 listings starting at $2,595
Used Ford Fusion
1,201 Great Deals out of 72,362 listings starting at $1,295
Used Dodge Charger
538 Great Deals out of 28,652 listings starting at $2,275
Used Kia Optima
543 Great Deals out of 29,728 listings starting at $2,000
Used Chevrolet Impala
919 Great Deals out of 36,142 listings starting at $1,800
Used Nissan Rogue
688 Great Deals out of 58,508 listings starting at $1,800
Used Nissan Murano
449 Great Deals out of 22,211 listings starting at $2,250

Used Cars For Sale

2017 Nissan Altima 2.5 SL For Sale
2,604 listings starting at $20,741
2016 Nissan Altima 2.5 SL For Sale
6 Great Deals out of 5,140 listings starting at $13,900
2015 Nissan Altima 2.5 SL For Sale
22 Great Deals out of 840 listings starting at $11,495
2014 Nissan Altima 2.5 SL For Sale
26 Great Deals out of 843 listings starting at $6,995
2013 Nissan Altima 2.5 SL For Sale
7 Great Deals out of 47 listings starting at $10,495