Having a problem with the heater blowing cold air while its moving.

Asked by edgar Jan 06, 2015 at 09:04 PM about the 2007 Pontiac Grand Prix Base

Question type: Maintenance & Repair

I have a 2007 Pontiac Grand Prix and while it idles and i turn on the heater it works fine,
but as soon as i start moving, it starts blowing cold air. I changed the thermostat, it has
coolant, the hoses get hot and i even change the  climate control module and still
nothing. Could anyone help figure out what this could be?

3 Answers
30,540

mikeatpriestlake answered 9 years ago

Make sure the coolant level is full, then bleed the air out of the system. There are some good YouTube videos on the subject.

2 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Having a problem with the heater blowing cold air while its moving. 3 Answers

    I have a 2007 Pontiac Grand Prix and while it idles and i turn on the heater it works fine, but as soon as i start moving, it starts blowing cold air. I changed the thermostat, it has coolant, the h...

    2007 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • Pontiac heater blowing cold air. 2 Answers

    Okay so just yesterday morning i noticed my heater which is on the highest temp in the mornings didnt blow any hot air. Speed fan was fine. But when i noticed i started to move the nobs ti cold t...

    2003 Pontiac Grand Prix

    -

    Maintenance & Repair

  • 2004 Pontiac Grand Prix only blowing cold air when heater is on 4 Answers

    I have a 2004 Pontiac grand prix , I blew a head gasket and had it repaired. Since then the heater was only blowing slightly hot air and now it only blows cold air. The coolant level id good and the...

    2004 Pontiac Grand Prix GT1

    -

    Maintenance & Repair

  • Grand prix blowing cold air 1 Answer

    Had my thermostat and water pumped replaced, but its still blow cold air and won't defrost

    2005 Pontiac Grand Prix

    -

    Maintenance & Repair

  • A/C blowing hot air 1 Answer

    AC had been working fine then just out of the blue it went from cold air to blowing hot air I checked in the freon level is fine

    2007 Pontiac Grand Prix GT

    -

    Maintenance & Repair

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 1 nationwide Grand Prix listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Pontiac Grand Prix Questions

CarGurus Experts

  • #1
    munron
    Reputation
    8,230
  • #2
    James Sparrow
    Reputation
    7,530
  • #3
    Dorian Hendricks
    Reputation
    6,190
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Pontiac G8
1 listing
Used Chevrolet Impala
6 Great Deals out of 92 listings starting at $3,495
Used Dodge Charger
40 Great Deals out of 724 listings starting at $5,995
Used Pontiac GTO
3 listings
Used Pontiac Grand Am
1 listing
Used Ford Mustang
62 Great Deals out of 1,356 listings starting at $4,995
Used Pontiac G6
12 listings
Used Chevrolet Corvette
27 Great Deals out of 1,083 listings starting at $15,000
Used Chevrolet Monte Carlo
5 listings starting at $9,449
Used Jeep Grand Cherokee
103 Great Deals out of 3,130 listings starting at $3,995
Used Chevrolet Silverado 1500
196 Great Deals out of 5,897 listings starting at $2,975

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. Content will be removed if CarGurus becomes aware that it violates our policies.