Question about 2004 Pontiac Grand Am

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MY 2004 GRAND PRIX HAS CLIMATE CONTROLED A/C. THE COMPRESSOR RUNS GREAT AND THE LINES ARE ICE COLD BUT ONLY HOT AIR COMES OUT!!!! WHAT DO YOU THINK ???THANKS TERRY IN CANADA

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  • Pontiac Master
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This problem is caused by a defective air temperature control blend door actuator motor, to replace this part u must remove the dash.

Posted on Apr 18, 2009

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What causes 2004 grand prix AC to be not very cold only 60 degrees, the system is full and has good pressure on gauge, what elase may cause it to do this?


if it has climate control ,check that the heater is not partially on
clean the evaporator under the dash as there may be gunk in the fins
If the system is too efficient thre will be ice on the evaporator which will not allow the system to reach temperature.
check with an accredited ac specialist shop

Jun 19, 2015 | 2004 Pontiac Grand Prix

1 Answer

I have a 2000 pontiac grand prix with a digital climate control system. The heat quit working, it doesn't blow out any heat. Now that it is warm outside the air stopped blowing out any air. The digital...


I have a 2000 pontiac grand prix with a digital climate control system. The heat quit working, it doesn't blow out any heat. Now that it is warm outside the air stopped blowing out any air. The digital temperature on the climate control is not correct. When it states that it is below 30 degrees on the ext and it is warm outside the air wont be cold. Once it starts going above 30 degrees the air gets colder. Today the blower stop working all together. Was told it maybe the climate control unit was bad. You can hear the door opening/shutting when you switch the temp from cold to hot. But there was no heat blowing out whatsoever in the winter time. Could you please give me your opinion on whether or not it is the climate control unit or something else?

Jul 11, 2011 | 2000 Pontiac Grand Prix

1 Answer

I have a 2004 Grand Prix. My daughter has it at school 60 miles away from me. She said that the service theft system light has come on and she would like to know what she can do to clear problem. Is it...


You can disconnect either battery terminal for 15 minutes...then reconnect...this will reset all of the systems...Also, is the Grand Prix in an extremely cold climate? If so, the door jams could have some ice or dirt causing them to send a wrong signal...did the G/P go through a car wash recently? This wash could have supplied the extra ice or debris causing the theft security systems warning light...Great Cars...you should be able to fix this...:)

Dec 13, 2010 | 2004 Pontiac Grand Prix

1 Answer

I have a 1997 Pontiac Gran Prix and the air conditioner is full blast on the passenger side and on the drivers side is hot air?


I think these cars have dual climate control. Basically, the driver and passenger can set their own climate. Some like it hotter than others, is the thinking. If this is the case, you need a new climate control module. If not, I am at a complete loss.

Good luck!

May 21, 2010 | 1997 Pontiac Grand Prix

1 Answer

Heater only blows hot air,even when set to cold.just had a rad flush,could that have something to do with it


No the flap is not working thats all, heater matrix gets hot water allthe time air flap controls this!
might have broken control cable e.t.c.
Have a great day..Bruce

Mar 10, 2010 | 2004 Pontiac Grand Prix

2 Answers

My heater on my 2002 pontiac grand prix blows hot then cold air my wife hit a huge pothole on sunday then after that this started doing this please help


check you climate control vacuum hose. it may have come loose or crimped. its located beneath and under battery mount box. also check to see if your coolant resvouir is full as well as your resivour cap is tight.

Jan 26, 2010 | 2002 Pontiac Grand Prix

1 Answer

Clicking on air flow when moved from cold to hot


does it get warm at all? i would say its a vacuum line or something in the climate control unit..if the climate control look on ebay.

Sep 21, 2009 | 2004 Ford Explorer

2 Answers

Grand prix 3800 blowing only hot air please help


check the temp control switch in the dash

Jun 19, 2009 | 2002 Pontiac Grand Prix

1 Answer

2000 mercury grand marquis air conditioning won't work


1st Thing,
Located Someone With a Set Of A/C Gauges 134A Freon,
Make Sure Your A/C System Has Enought Freon In It, There Is a Low Freon Pressure Switch
In The Electrical System, Usually, 50-60 PSIG or Less On The Gauges, Will Indicate Low Freon, When Freon Is Low The Compressor Is Dis-engaged To Prevent Compressor Damage.
1] Low Freon
2] Bad Low Pressure switch
3] Blowen Fuse[s]
4] Electrical Problem[s]
[a] Digital Climate Controlled ?
Climate Control Self Diagnose From Button's On Unit, OEM Manual Explains This,
If Yor Auto Has Digital Climate Control.
5] Bad Compressor DC Coil

Note: Does The Compressor Engage, Click-On When Button Is Pressed, But Getting
Only Warm Air?
Is One Of The Compressor Aluminum Tube's Cold, Be Careful Other Is Really Warm/Hot,
If Cold and or Sweating, Dripping Water [Normal], You Are Blending Hot Air w/Cold
Air At The Heater Blend Box, Making Warm Air.
If This Is So, If A Vaccum Controlled Temp Unit, Check For A Vaccum Hose Bad,
Should Be Either 1or 2 Vaccum Lines Going Into Firewall To Feed The Controller
Unit, If OK, Might Be a Bad Blend Box Diaphram, [Control's A/C air, Blocks Off
heater Coil Hot Air].
If Your Auto Is Vaccum Controlled, Can You Changed From Bottom, Dash,
Defrost Air Flow?, Yes, No Vaccum Lost Feeding Controller, Still Might Have
Bad Diaphram Blending Hot Air w/Cold If Your Have Cold Alum-Tubing In
engine Compartment.
If Digital Climate Controlled, Might have Diaphram's, Vaccum Controlled or
electrical Servo's Controlled vs Diaphram [Vaccum] Controlled.
This Might Help, Hopefully, This Is Just For Starter's, There More To Some System's
and Without The OEM Mgr's Manual[s] You/Be Would Be Lost, especially w/Electrical.
Later, God Bless

Apr 24, 2009 | 2000 Mercury Grand Marquis

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