|
|
2000 Pontiac Grand Prix GT
|
|
|
| |
|
thealien707
New User
Nov 17, 2011, 12:43 PM
Post #1 of 5
(3220 views)
|
2000 Pontiac Grand Prix GT
|
Sign In
|
|
I was wondering what would cause my heater to only run heat for 30 seconds to a minute at a time. After that it acts like I turned the temperature gauge to half heat half AC. I can turn it off for about 3 minutes and turn it back on and it just continues the cycle. It's a 3.8 L and has 175,00 miles.
|
|
| |
|
Hammer Time
Ultimate Carjunky
/ Moderator
Nov 17, 2011, 12:47 PM
Post #2 of 5
(3217 views)
|
Re: 2000 Pontiac Grand Prix GT
|
Sign In
|
|
With the engine at full operating temp, locate the 2 heater hoses where they go into the firewall and feel them to see if they are both hot to the touch. If they are both hot, the heat in that vehicle is controlled by a blend door that regulates heated air flow. it is operated by an electric motor/actuator. The problem can be that the actuator is stripped or inoperative or the door itself could be damaged. This is what needs to be determined by examining the actuator and see if it is responding to heat change commands or not. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|
thealien707
New User
Nov 18, 2011, 2:31 AM
Post #3 of 5
(3185 views)
|
Re: 2000 Pontiac Grand Prix GT
|
Sign In
|
|
Are there any more simple things it could be before I decide to tear out my entire dash?
|
|
| |
|
Tom Greenleaf
Ultimate Carjunky
/ Moderator
Nov 18, 2011, 4:29 AM
Post #4 of 5
(3184 views)
|
Re: 2000 Pontiac Grand Prix GT
|
Sign In
|
|
Might be low on coolant. If so find the leak that could be anywhere coolant (antifreeze mix) goes, T
|
|
| |
|