how to replace temperature sensor on a Pontiac 3.8 liter engine

Asked by Oct 28, 2014 at 09:42 PM about the 1999 Pontiac Grand Prix

Question type: Maintenance & Repair

cooling fans will not turn on no matter how hot the car yet if I
disconnect the temperature sensor plug the cooling fans will turn
onwith the engine running if I connect the plug back the fans will stay
on until I shut the car off when I restart fans will not turn on + air
conditioning is not working eitherwhen I try to turn AC on you do not
hear the clutches in the compressor engageand before I had work
done to my car the AC and the temperature gauge and fans work
properly that is how I got the car backit sounds like an electrical
problem or the e_c mI don't know but please any helpful information
would be appreciated it is giving me a headache I do not trust
mechanics anymore

4 Answers

65,695

Check the fan relay?

Best Answer
65,695

And on the ac,,check fuse,s and ac relay.

1 of 1 people found this helpful.

I forgot to list I also had my ECM reflashed so I believe there might be a problem with the ECM not communicating with the body module and there is also a fuse it is a 15 amp ignition fuse it is position 21 in the under hood fuse block I am NOT getting any power to either side of that fuse checked with meter checked with test light no voltage going to. The fuse is not blown can you please tell me where the source voltage comes from any help would be appreciated thank you for your reply

40

Fuse Position # 21 should be TRANS SOL - Torque Converter Clutch (TCC)

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,863 nationwide Grand Prix listings starting at $1,600.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,270
#2 Tom Demyan
Tom Demyan
Reputation 2,870
#3 munron
munron
Reputation 2,210
View All

Related Models For Sale

Used Chevrolet Impala
592 Great Deals out of 34,064 listings starting at $899
Used Pontiac Bonneville
4 Great Deals out of 511 listings starting at $1,799
Used Chevrolet Monte Carlo
20 Great Deals out of 1,419 listings starting at $1,995
Used Pontiac Grand Am
1,183 listings starting at $1,599
Used Ford Mustang
537 Great Deals out of 45,845 listings starting at $1,999
Used Chevrolet Malibu
1,065 Great Deals out of 77,909 listings starting at $1,500
Used Honda Accord
947 Great Deals out of 77,741 listings starting at $899
Used Nissan Maxima
321 Great Deals out of 24,382 listings starting at $999
Used Chevrolet Camaro
245 Great Deals out of 31,195 listings starting at $369
Used Pontiac Firebird
4 Great Deals out of 768 listings starting at $1,791
Used Nissan Altima
1,154 Great Deals out of 79,677 listings starting at $500

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
18 Great Deals out of 431 listings starting at $1,995
2007 Pontiac Grand Prix For Sale
3 Great Deals out of 397 listings starting at $4,299
2006 Pontiac Grand Prix For Sale
6 Great Deals out of 462 listings starting at $1,600
2005 Pontiac Grand Prix For Sale
330 listings starting at $1,800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.