- #37 of 78
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ac condensation leaking on passenger floor
by traveler73
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May 30, 2008 (1:00 pm)
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when air is on condensation leaks all over floor from underneath dash ---has anybody had this happen/ know what it is?????--thanks!
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- #38 of 78
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Re: A/C flapper on vents [jerrcrib]
by lrs1018
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May 31, 2008 (5:24 am)
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Replying to: jerrcrib (May 27, 2008 11:57 am)
I opened glove box and i see nothing but fan motor. How do i pull radio and control modulator out because i see no actuators to spray any wd40 onto, ( where are the vent flappers) this all sounded easy till i opened glove box and looked inside.
SORRY
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- #39 of 78
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Re: A/C flapper on vents [lrs1018]
by jerrcrib
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May 31, 2008 (11:47 am)
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Replying to: lrs1018 (May 31, 2008 5:24 am)
drop glove box to floor look to your left under dash just spray the wd 40 into this area it will coat everything,it will not hurt electrical components. You will not be able to see what you are doing. First actuator is to your immediate left. To change control modulator you will have to remove all the trim from front of dash,it is all one piece,it is really not that hard to do, You can the get to modulator radio speedometer cluster. To get to middleactuator,etc. you will have to pull completetop of dash out. I would not recommend you doing this.If i can help you more let me know. Jerry
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- #40 of 78
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Re: fan speed problems [gorilla2]
by jerrcrib
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May 31, 2008 (11:52 am)
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Replying to: gorilla2 (May 28, 2008 4:00 pm)
control modulator gm has always had a problem with this, no way to repair different components, all one piece about 160.00 from ac delco gm parts on line
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- #41 of 78
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a/c service
by cjoyce01
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Jun 02, 2008 (9:27 am)
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My a/c has been running cold but only for about 30-40 minutes and then the air blows warm. I don't know if this is a normal service issue or does it mean there could be a leak? There's nothing in the owners manual for servcing the a/c.
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- #42 of 78
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Re: a/c service [cjoyce01]
by jerrcrib
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Jun 02, 2008 (10:27 am)
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Replying to: cjoyce01 (Jun 02, 2008 9:27 am)
something is cutting out power to the a/c clutch,clutch sensor switch or low pressure switch. check freon first but if it cools for that long I would say the freon is okay no leak. I have a 2002 trailblazer and have had this problem off and on for 7 years dealer never found the problem under warranty. The next time it quitscooling pull over cut engine off and start up again to see if it starts cooling again. jerry
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- #43 of 78
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Re: a/c service [jerrcrib]
by cjoyce01
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Jun 02, 2008 (10:47 am)
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Replying to: jerrcrib (Jun 02, 2008 10:27 am)
Thanks Jerry! I'm going to a dealer tomorrow but I don't want them running up my bill for stuff I don't need, i.e. freon. I'll try your suggestion. At least I feel armed with knowledge for tomorrow. Thanks again!
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- #44 of 78
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Re: Climate Control Problem [nedt]
by shutterb
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Jun 07, 2008 (8:53 am)
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Replying to: nedt (Sep 18, 2007 11:09 am)
Where is this sensor and what does it look like? I see a small two wire sensor just in front of the radiator. is that it?
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- #45 of 78
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Re: Climate Control Problem [bqueb]
by pa2tx2md
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Jun 23, 2008 (6:24 am)
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Replying to: bqueb (Jun 26, 2007 8:15 am)
I am having the same problem with my 2003 trailblazer. The external temperature reading fluctuates, starting out at 50 degrees and staying there until it eventually corrects itself. Then it may go back to 50 degrees. The internal air comes on full blast as the external temperature reading rises rapidly to read the actual outside temperature. Did replacing the ambiet outside temperature sensor resolve the problem. Is it something that a dealer has to do or is it a relative simple fix? Where is the part located?
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- #46 of 78
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Re: Climate Control Problem [pa2tx2md]
by burdawg
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Jun 23, 2008 (6:33 pm)
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Replying to: pa2tx2md (Jun 23, 2008 6:24 am)
The easiest way to replace the ambient sensor is to remove the grill. It's mounted under the top radiator frame rail, a little hard to see, but if you follow the wires you'll find it. You have to push the plastic snaps back to get it out of the hole. I went to the dealer for the new part, the earlier style has been discontinued and replaced by the later style, but it's the same part on a plastic bracket. You remove the sensor from the bracket, throw the bracket away, and push the new part into the existing hole (it just snaps in).
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