I got a leak from my ac fixed and it was fine and a couple days later it started blowing out warm, but then got back cold after a while. Then I notice the temperature on my dashboard kept switching.

Asked by Apr 08, 2015 at 12:46 PM about the 2006 Pontiac Grand Prix GT

Question type: Maintenance & Repair

For example it would read 73 degrees
and it would blow out cold then it would
switch to 14 degrees and it blows warm. I
took it to the mechanic he said it was the
temperature sensor so I got that and he
put it on but it's still doing the same
thing. The temperature changes back
and forth. So what is the problem now?

2 Answers

217,885

I was going to say the temp sensor myself, so I'd check the wiring or connections.

1 out of 1 people think this is helpful.
59,215

Sounds like it's switching from Fahrenheit to Celsius. I assume that you're referring to the set temp and not the outside temp? Most likely the climate control head is bad. HTH. -Jim

Your Answer

Add photo

Related Questions

  • Car will sometimes not start after warm. 46 answers

    When i start my car, for the first time during the day- I have no problem. When I go somewhere and shut it off, sometimes it won't resatrt. It doesn't seem to matter what the weather is outside, it ju...

    1999 Pontiac Grand Prix 2 Dr GT Coupe

    -

    Maintenance & Repair

  • 2008 GrandPrix no heat/no ac - has coolant and refrigerant what could be wrong? 19 answers

    It started last year, I checked the refrigerant and it's full. This past weekend I checked the coolant an it's to the top of the cap. I Google the issues and a lot of people out there seem to be havin...

    2008 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • 2004 3.8 will start run ok warm up and die, then the starter won't turn over 17 answers

    I will start the car up runs fine, after it warms up either running down the road or idling, it stalls and then the starter won't turn over, I've replaced ignition switch, crank sensor, checked grou...

    Pontiac Grand Prix

    -

    Maintenance & Repair

  • 2006 Pontiac Grand Prix air not getting cold or hot 1 answer

    I have a 2006 Pontiac Grand Prix. This summer I noticed the AC would not get cold, I added coolant and that did not help. The blower has no problem blowing air, I can switch it to the floor vents an...

    2006 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • Runs hot 190-240 but heater blows cold air 22 answers

    the temp guage goes to 185 then raises to 240 then back to 180. meanwhile the heater is blowing cold air. Then I park it for five minutes, the temp goes down to 180 and stays there and the heater star...

    1995 Pontiac Firebird Base

    -

    Maintenance & Repair

Search Pontiac Grand Prix Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 3,890
#2 Tom Demyan
Tom Demyan
Reputation 2,580
#3 munron
munron
Reputation 2,060
View All

Related Models For Sale

Used Chevrolet Impala
904 Great Deals out of 35,159 listings starting at $1,700
Used Pontiac Bonneville
9 Great Deals out of 649 listings starting at $1,375
Used Dodge Charger
447 Great Deals out of 29,937 listings starting at $2,275
Used Pontiac G6
75 Great Deals out of 5,067 listings starting at $1,295
Used Chevrolet Monte Carlo
21 Great Deals out of 1,689 listings starting at $2,491
Used Pontiac Grand Am
1,656 listings starting at $1,298
Used Chevrolet Malibu
1,103 Great Deals out of 82,569 listings starting at $2,328
Used Ford Mustang
537 Great Deals out of 42,627 listings starting at $1,699
Used Pontiac GTO
6 Great Deals out of 475 listings starting at $5,500
Used Jeep Grand Cherokee
898 Great Deals out of 66,110 listings starting at $1,500
Used Nissan Maxima
364 Great Deals out of 24,282 listings starting at $999
Used Nissan Altima
1,062 Great Deals out of 82,195 listings starting at $1,988

Used Cars For Sale

2007 Pontiac Grand Prix GT For Sale
104 listings starting at $2,995
2006 Pontiac Grand Prix GT For Sale
104 listings starting at $2,000