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Vans & Minivans Chevy Venture Chevrolet Venture Heating / Cooling
66 messages, Last post on Nov 14, 2009 at 3:24 PM
You are in the Chevy Venture Forum. Your Host is Karens
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My 97 Venture has 3 control knobs for A/C & heat - fan, temp, & directional. One of the knobs is broken, and one is not long for this world - I have repaired both of them once with a plastic tie-wrap. I thought my fix was fairly ingenious - they both held for a year or two. One is now beyond "rigging" at this point, and I can't find those little jewels online. Or - I just haven't found the correct search terms. I see a reference to an online repair manual at auto zone above. I shall try that next. If someone could point me in the right direction to find replacement knobs, we have to drive this van til the wheels fall off. And wifey is getting a bit testy about having to pull one knob off and put it on the other post just to change the airflow.
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Replying to: ElvisBelushi (Jan 20, 2009 1:41 pm) Junkyard might also be a good place if you've got one local. Once again, it might not have to be from a Venture, I'm sure the Impala or Century or Alero or something used the same knobs.
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Replying to: 442dude (Jan 20, 2009 6:12 pm) Was really wanting click click, punch in card number, and ~poof~ on my doorstep in a week or so. Was ALSO hoping that since so many dang vehicles probably use this knob, I'd find a part number and 3rd-party supplier. |
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Replying to: 442dude (Mar 02, 2008 3:14 pm) Just one other note. I did inspect the blower housing. The metal between the blower cage and the motor had some light rust and corrosion on it. I am fairly certain that the cause of all this is the too lightly protected resistor coming in contact with moisture for a period of time. Hopefully, this new card has no problems as it is much more substantially protected. Thanks again, John.
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My A/C is not cooling in the front or rear. While it is definitely not hot at this time, I was hoping to try and fix it before it did get hot. It quit working late last summer. I was wondering what the easiest way was to tell how the compressor is even getting any power at all. I do not hear the customary "clink" of the compressor kicking in nor hear the accompanying extra strain on the engine. I have checked all the fuses and they were good. Thanks in advance.
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Replying to: cach22 (Mar 15, 2009 4:29 pm) I'm so glad I could help - you're very welcome! I haven't had any problems since and you're right, the new one did look much better designed than the one it replaced. Here's to hoping that neither one of us have to contort ourselves again to reach and replace that thing... All the best, John 
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Replying to: cach22 (Mar 15, 2009 4:53 pm) There's a low pressure switch on the system that monitors the pressure of your refrigerant - when it indicates that the refrigerant is below a certain pressure, it disables the compressor. I'd bet that you might have a refrigerant leak and your system needs to be checked and recharged. There is also a low temperature shutoff programmed in the system which keeps it from turning on when the outside temp is below 32F but since you started having trouble last summer I'm thinking that's not why its not turning on. If you're not hearing the "clink" of the compressor clutch, chances are its not getting any power. A mechanic can hook up a scanner and see if the computer is commanding the compressor to turn on or if its inhibiting it for some reason. He'll also check the system pressure to see if that's the reason. Alternately - you could check in the compressor area to so if by chance that the electrical connection has come loose or off - its not likely but it does happen. But I'm guessing that your system is low on refrigerant due to a leak. Good Luck, John
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| Well, I added 25 Oz of R134A and the A/C started working. I could hear the compressor clutch engage and the added load on the engine. However, two vents, one on either side of the driver, still blow warm air. This happens despite the fact all other vents are blowing cold air. Any ideas? | |
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Replying to: 442dude (Mar 15, 2009 5:06 pm) Well, I added 25 Oz of R134A and the A/C started working. I could hear the compressor clutch engage and the added load on the engine. However, two vents, one on either side of the driver, still blow warm air. This happens despite the fact all other vents are blowing cold air. Any ideas? |
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Replying to: cach22 (Mar 21, 2009 2:55 pm) I'm no AC expert by any stretch...I even checked and couldn't find a technical service bulletin from GM in the factory service manual about that problem. I'm pretty sure that the center vents are all fed by one duct so all 3 of them should be either warm or cold... Check your ducts & make sure they're where they belong, maybe you knocked one loose/off when you were replacing the blower resistor. Also, there's a vacuum line that runs right near the blower and out through the firewall to under the hood - trace it back to the controls and make sure its not pinched or damaged, then start the car and make sure you're getting good vacuum through it - I had to replace mine because it got clogged - I'm pretty sure the actuator door is vacuum operated on the Venture. Also, check the temps of the different ducts with a thermometer to make sure your hand isn't playing tricks on you - that's why I'm thinking that a duct fell off under the dash as your hand will perceive a cooler temperature when there is more air moving over it. Also, check the temp in your defroster duct. I wish I could be more help - I really don't know too much about AC systems...at this point I think I've shared most of what I know with you... Best of luck, John
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