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About Todd Puccio
Expertise
General auto repair,electical issues,driveability issues,anti-lock brakes,SIR systems,HVAC,engine performance,Gm spacific. I have worked at my current dealseship since the 1990 model year anything much older than that I have limited exposure to. I do not have very much transmission experience so those question you may want to ask of another expert. When you send me a question let me know the exact make/model/engine and year for the car or suv you have it makes it easier to answer the questions that way.
Experience
Experience in the area:I have been employed by the same Gm dealer for 18 years and and a ASE master technician. I work at a Pontiac and GMC truck store. Served a a lead technician when dealership was on a team system.
I just recently moved to a Buick,Hummer,Saab Store when my franschise was purchased by this dealership.
Organazations: ASE master techncian
Education/Credentials:High school diploma,2 year vocational school degree
2 year college degree. Associates degree in applied scineces (auto technology)Awards and Honors: GMC master techncian
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You are here: Experts > Home/Garden > Auto Repair > Pontiac Repair > 2005 pontiac grand prix
Expert: Todd Puccio - 10/30/2009
Question
QUESTION: when car is started with factory remote and warmed up ,cold air comes out center vent only but when key is put in and turned on heater works normal. what could be the problem?
ANSWER: Hi Gary:
their is either a code in the system or a malfunction of some kind. Does this have auto climate contro? Maning digital controls for the temp setting? Early 2005 models had an issue with the HVAC control head being bad they had a redesigned control head that would address that issue. But Like I said ther can be a code in the system and that is why it's acting like that.
---------- FOLLOW-UP ----------
QUESTION: took car to autozone and found no codes. what would be my next step?
Answer
take it to the dealer and have them scan the heater control head for the part # of the control head and have them check to see if it has the latest control head in the car. Per this service bulletin.
#05-01-38-003B: HVAC Blows Cold Air From IP Vents When Using Remote Start (Replace HVAC Control Module) - (Nov 9, 2005)
Subject: HVAC Blows Cold Air From IP Vents When Using Remote Start (Replace HVAC Control Module)
Models: 2005 Buick Allure (Canada Only), LaCrosse
2005 Pontiac Grand Prix
with Remote Start (RPO AP3) and Manual HVAC Controls (RPO C67)
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This bulletin is being revised to add the Buick Allure/LaCrosse and update the parts information. Please discard Corporate Bulletin Number 05-01-38-003A (Section 01 -- HVAC).
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Condition
Some customers may comment that the HVAC system blows cold air from the instrument panel vents when using the remote start function. This means they are unable to warm-up the vehicle using remote start.
Or possably this one.
#05-01-39-005A: A/C Blows Warm Air From Vents When Using Remote Start (Reprogram PCM) - (Oct 21, 2005)
Subject: A/C Blows Warm Air From Vents When Using Remote Start (Reprogram PCM)
Models: 2005 Pontiac Grand Prix GXP
Built Prior to May 26, 2005
Attention: Use GMVIS to determine vehicle build date. This bulletin only applies to vehicles built prior to May 26, 2005.
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This bulletin is being revised to update the warranty information with a new labor operation number. Please discard Corporate Bulletin Number 05-01-39-005 (Section 01 -- HVAC).
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Condition
Some customers may comment that the A/C blows warm air from the vents when using the remote start feature. The A/C system will turn on to the last customer setting before key off after the customer enters the vehicle, inserts the ignition key and turns it to the run position.
You didn't mention what engine this car has and this second bulletin is a bit off from what you mentioned but I have seen this happen with the GXP option Grand prix.
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