I have a 2007 Pontiac Grand Prix. The heat is not blowing hot. I had the whole system flushed in November, and that worked, but is there something I can to do 1. avoid this happening every 2 months, and 2. flush it myself?

5

Asked by Jan 03, 2014 at 09:23 AM about the 2007 Pontiac Grand Prix GT

Question type: Maintenance & Repair

3 Answers

4,525

Most auto supply shops have a flush kit you can buy that will let you do this very inexpensively. The question is, why it needs to be flushed every two months, that's not normal. If you're radiator and heater core are filling up with corrosion or grit, you've got the wrong antifreeze or a pump failure on the way.

110

does it need flushed or does it have an air bubble in it? Is the coolant full of crud?

35

Mid to late 2000s GM products tends to have problems related to the HVAC system in which the dampers (valves which control the air flow) tend to freeze in place. From personal experience I have had them freeze totally or partially closed positions before. This would prevent you from being able to control the direction of airflow (head, feet, defroster, etc...) and or heating/cooling ability of your vehicle. Good news is the fix is simple. With most GM cars (Grand Prix is one) a lot of the computer inputs are done through the radio. Resetting the dampers should fix the problem. All that needs to be done is to hold in a specific combination of buttons on the radio to preform a damper cycle and reset. Just give a call to your local GM service department and they should be able to provide you with the correct combination of buttons to preform the reset. Hope this is helpful. Chris Business Consultant Vehicle Information Resources LLC Owner of a 2006 Pontiac Grand Prix GT

Your Answer

Add photo

Related Questions

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,860 nationwide Grand Prix listings starting at $1,995.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,120
#2 Tom Demyan
Tom Demyan
Reputation 2,770
#3 munron
munron
Reputation 2,150
View All

Related Models For Sale

Used Chevrolet Impala
511 Great Deals out of 29,109 listings starting at $1,100
Used Pontiac G8
19 Great Deals out of 339 listings starting at $4,995
Used Dodge Charger
279 Great Deals out of 26,750 listings starting at $2,250
Used Chevrolet Monte Carlo
14 Great Deals out of 1,396 listings starting at $1,995
Used Pontiac G6
54 Great Deals out of 4,157 listings starting at $699
Used Pontiac Grand Am
1,238 listings starting at $1,595
Used Pontiac GTO
4 Great Deals out of 437 listings starting at $5,995
Used Chevrolet Malibu
826 Great Deals out of 81,056 listings starting at $995
Used Ford Mustang
362 Great Deals out of 46,831 listings starting at $1,999
Used Honda Accord
716 Great Deals out of 87,004 listings starting at $1,250
Used Chrysler 300
336 Great Deals out of 20,337 listings starting at $1,000
Used Dodge Challenger
112 Great Deals out of 23,963 listings starting at $9,350

Used Cars For Sale

2007 Pontiac Grand Prix GT For Sale
77 listings starting at $2,999
2006 Pontiac Grand Prix GT For Sale
84 listings starting at $1,999