I have a 99 pontiac sunfire 2.2 giving a code p0118

Lisa Wilson

Asked by Lisa Apr 19, 2013 at 09:46 PM about the 1999 Pontiac Sunfire 2 Dr SE Coupe

Question type: Maintenance & Repair

I have a 99 pontiac sunfire 2.2 and the emission test keeps telling us that the coolant temp sensor is the problem ,we have replaced the senor and the wiring harness to it and it still keeps givin sam

4 Answers


Your not putting silicon or Teflon tape on there when installing the new one, that would screw up grounding.

5 out of 5 people think this is helpful.

Well you got the sensor the wiring and the pcm. And you say two of those have been replaced.

Not Active

P0118-according to one yarn on the sweater---The fan would come on if the computer lost the signal from the sensor rather than the sensor failing because of the fan. Low coolant is another possible cause.


This site has some info you may not be aware of. http://engine-codes.com/p0118_pontiac.html

4 out of 4 people think this is helpful.

Your Answer

Add photo

Related Questions

Looking for a Used Sunfire in your area?
CarGurus has 577 nationwide Sunfire listings starting at $1,500.

Search Pontiac Sunfire Questions

Pontiac Sunfire Experts

#1 John Saffrahn
John Saffrahn
Reputation 1,890
#2 Joeyadams
Reputation 1,020
#3 Warren0007
Reputation 980
View All

Related Models For Sale

Used Chevrolet Cavalier"
1,631 listings starting at $2,495
Used Pontiac Firebird"
16 Great Deals out of 806 listings starting at $1,995
Used Ford Mustang"
653 Great Deals out of 42,740 listings starting at $1,695
Used Honda Civic"
828 Great Deals out of 58,098 listings starting at $999
Used Pontiac Grand Am"
2,023 listings starting at $2,500
Used Toyota Corolla"
1,129 Great Deals out of 72,126 listings starting at $1,995
Used Hyundai Accent"
291 Great Deals out of 15,766 listings starting at $1,300
Used Nissan Maxima"
393 Great Deals out of 23,670 listings starting at $1,500
Used Pontiac Grand Prix"
83 Great Deals out of 4,386 listings starting at $500
Used Mitsubishi Eclipse"
49 Great Deals out of 1,805 listings starting at $2,495

Used Cars For Sale

2004 Pontiac Sunfire For Sale
102 listings starting at $2,301