Question about 1998 Pontiac Grand Prix

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AC blows cold on drivers side and hot on passengers side of my 98 Grand Prix GT it has dual control both set to 60.what can cause this

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Try checking the fuses for the passenger side HVAC system.

Posted on Jun 19, 2009

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Faulty control head as a general rule,but could be pass side vent temp sensor.

Posted on Jun 19, 2009

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2001 grand prix/ changed out dual climate/fan speed/air direction controls cause climate control knobs/slides were broken and was hot on drivers side and cold on passenger side-now can control pass side...


Probably the left side air temperature actuator is bad . electric motor that controls opening an closing of temp door in the HVAC case . No the computer doesn't need to be reset .
Temperature Valve Actuator Replacement - Left Side
Removal Procedure
Remove the left instrument panel insulator. Refer to Instrument Panel Insulator Panel Replacement - Left Side in Instrument Panel, Gauges and Console.
Remove the knee bolster. Refer to Knee Bolster Replacement in Instrument Panel, Gauges and Console.

Disconnect the electrical connector from the left air temperature actuator.
Remove the mounting screws from the left air temperature actuator.

Remove the left air temperature actuator.

Dec 05, 2017 | 2001 Pontiac Grand Prix

1 Answer

1999 pontiac grand prix gtp dual airconditioning problem, driver side air condition is blowing hot passenger side blowing cold


Two things can be the problem,first,try adding ,a little freon,if it is low,it will only cool one side,then if this does not help,there is a door actuator motor that controls this,it could be not working,the dash has to come out to replace this actuator motor,if this was at all helpful,please rate,thank you.

Jul 13, 2010 | 1999 Pontiac Grand Prix

2 Answers

My AC blows hot air out the driver's side and cold


My 02 Century has dual temp controls . One for driver for passenger. Make sure you don't have the dual climate enabled and just set for heat on your side and AC on the passengers

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this problem is caused in almost all cases by a failed actuator that moves the door insiode the heating/ac duct to change the outlet temperature, it is called the Air Temperature Control Blend Door actuator.

Oct 05, 2009 | 2004 GMC Envoy

2 Answers

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check the temp control switch in the dash

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1 Answer

2004 Chevy Silverado AC is blowing warm air on passenger side.


You have dual zones that are controlled by temperature actuators the passenger side has lost its memory or has gone bad you can put it in self programming by disconnecting the battery for ten minutes then hook it back up start the truck turn the temperature control on but do not touch any other controls let it go thru the self programming for about 6 to 7 minutes then select your temperature you want if it still does not work properly you may have a bad actuator or a bad connection at the actuator

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1 Answer

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Damper/flap for driver's side is probably stuck. Try moving the selector from cold to hot several times. Also, move the recirc/outside air control if the previous doesn't work.

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A/C issue with 99 Grand Prix


Check the ac filter, it might be dirty and thats why it is not blowing out enought cold air. The filter is located under the wiper cover but behind the firewall on the passengers side. You access this by lifting the hood and removing the rubber type gasket that holds both together, right on top of the blower unit.

Apr 24, 2009 | 1999 Pontiac Grand Prix

2 Answers

AIR CONDITIONER ONLY BLOWING COLD ON ONE SIDE AFTER DISCONNECTING BATTERY


Turn your AC off. Turn the car off Crank the car turn ac on drivers side to 60 passenger side to 90 press auto wait 1 minute turn AC off (very important) turn car off turn car back on switch driver's side 90 passenger 60 press auto wait one minute turn AC off( very important) turn car off turn car on AC 70 both sides press auto your ac should be blowing cold If not, you have an expensive problem

Aug 25, 2008 | GMC Sierra Cars & Trucks

2 Answers

1998 Pontiac Grand Prix A/C Blows hot on drivers side coldeer on passenger


i have an Idea. first of all make sure that all of your vents are not plugged up. next check your heating coils to find out if only one side is hot or the other is only cold. i need more info

Jun 30, 2008 | 1998 Pontiac Grand Prix

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