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Sedans Pontiac Bonneville Pontiac Bonneville Heating/Cooling Problems
148 messages, Last post on Oct 15, 2009 at 1:40 PM
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Replying to: imidazol97 (May 22, 2009 4:00 am) Passenger side blows cold all the time. Driver's side will blow cold when the car is sitting still or when moving a neighborhood speeds, but as you go up to highway, the air gets warmer (though never is fully outside air temp). Driver's side will blow hot when you ask it to with controls and definitely cools down a little when you turn the A/C on, but is probably 15-20 degrees warmer than the passenger side. Any thoughts?
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Replying to: txcarnovice (Aug 18, 2009 11:01 am) First thing is to check on freon charge. The other is that some have trouble with actuators. I believe there are three and they are all on the driver's side of the HVAC stack in the middle of the car. Take off the hush panel, and move the AC controls to different settings and you should be able to cause each of those to move. You can see the axle of the actuator move people say. They are also made for easy remove and replace. Just be careful to install correctly. Some actuators have failed, but I would think that would cause you to have the wrong temperature all the time.
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Replying to: imidazol97 (Aug 18, 2009 9:51 am)
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Replying to: jd0754 (Aug 20, 2009 6:38 am) Check the vacuum hoses around the motor? Do you hear a vacuum leak? Check the reservoir behind the front wheel underneath. Cracked? One line on it good connection? When you shut off motor and go to it to pull off, there should be a strong vacuum whoosh for 15 seconds or so when you pull off the hose.
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Replying to: imidazol97 (Aug 20, 2009 11:16 am) |
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Greet'ins all! 2002 dual control..excellant AC from driver's side...FULL BLOWN HEATED air from passenger vents. All fan speeds operational All modes operational But the AC just cant quite do its job fighting with the blistering hot air coming from the passenger vents...even shutting the vent louvers off, the heat still forces its way out some and also out of the windshield defrost vents. Not a freon problem folks.....is it a bad control? Or can it be a vacuum hose / actuator arm? Thanks!
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Replying to: pickngrin1 (Aug 21, 2009 5:56 am) There have been a few reports of failed electric actuators all along with these H-bodies. I can't tell you which actuator is which function. I'll have to see if I have a labelled diagram. My guess is start testing for movements. You'll have one for recirculate, mode choice, driver's temp, passsenger's temp?
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Replying to: imidazol97 (Aug 21, 2009 12:43 pm) ...reading through all these posts really helped! -Pick
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Replying to: pickngrin1 (Aug 22, 2009 4:18 am) >I could manually go from full hot to full cold easliy Was that on top of the HVAC box? |
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| Ok i read through all the post's, and i just got my car back from my mechanic. i've gotten some great info on this my blender door was stuck on the hot side. The mechanic moved it to the cold air side. I have not tried much but this gives me some great ideas. I would like to know does the actuator actually rund the blend door? Are the 1999 models actuator in the same spot on to as the 1997 that the pictures were on? Thank you in advance. | |
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