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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

What is this discussion about? Chevrolet Venture, Heating / Cooling, Van


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#26 of 66
Re: pin details for front blower [sh00tr] by 442dude
Mar 02, 2008 (3:14 pm)
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Replying to: sh00tr (Mar 02, 2008 2:24 pm)

Hey sh00tr...
 
So you're fixed then...excellent...
 
These are a really common failure...mine looked scorched when I replaced it...looked a lot like yours - its the peril of mounting the part so closed to the blower where all sorts of dust & what have you is kicking around (moisture, heat, etc)
 
Looking at the wiring diagram and your pictures tells me a couple of things
 
-there is 12v power to the blower resistor at all times, ignition on or off
 
-the #5 position is wired directly to the blower relay, so when you choose # 5, its basically a straight shot of juice right to the blower motor ... if that relay fails closed ( like yours) that would explain only full blast, (the relay is on the resistor part) No matter what you set the switch at, if the relay fails closed, you're getting full blast all the time...
 
Mine looked very much like yours, although yours does look a little worse...I don't think its a water issue although you still may want to hunt down the source of the leak...
 
Post any time...I'm always cruising around here & willing to help
#27 of 66
Re: Heater Fan position Sw. only works on 5 [442dude] by modrace18
May 30, 2008 (4:53 pm)
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Replying to: 442dude (Jan 27, 2008 11:02 am)

Thanks John, it was the relay. I'd like to shoot the designer who put the screws where they are. Pretty miserable to get at the screws for such an easy task.
thanks Jim
#28 of 66
Re: Heater Fan position Sw. only works on 5 [modrace18] by 442dude
May 31, 2008 (12:12 pm)
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Replying to: modrace18 (May 30, 2008 4:53 pm)

No problem...I'm glad to be able to help...if they tried to pick a horrible place to put that thing I'm not sure they could make it any worse...
 
Best,
John
#29 of 66
2002 Venture: A/C and Heat not working by jthambright
Jul 28, 2008 (2:01 pm)
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My heat started acting up last winter. I would start the car and start the defrost in the morning. When I came back out a long period later, the cabin would still be cold and no defrosting occurred. When I drove the car to work the heat began to warm up and get to a comfortable level. I also started to notice the temperature guage rising above normal when I went on long trips (over an hour). Before it got too cold I flushed the radiator to see if this was the problem, but did not fix it. Summer has come and now the A/C does not work. Attempted to recharge the A/C since it had been 4+ years since we bought the vehicle. This did not work. I get warm air from the vents. When I turn on the A/C I get a noise that I assume is the compressor kicking on, so it appears that it is working. I have not taken a PSI check on the system yet though, but if the pressure is NOT correct I assumed the compressor would not come on?!?! Since they are faults that occur seasons apart, I did not make the connection until now. Is it possible they are related problems... Would a vacuum hose leak or disconnect cause both of these probblems? If so, where is it and how do I T/S it. If not... What are some recommendations for T/S or rectifying these problems?
 
Thanks in advance for any assistance.
#30 of 66
AC condensation leakage in cabin by cabbbailey
Aug 08, 2008 (5:03 am)
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I have a 2002 Venture LS that has developed a problem where condensation somehow leaks into the cabin onto the driver's floorboard. After I've been driving with the AC on for a while and then I get out of the car, when I come back the carpet on the driver's side is wet and the ground directly under the driver's side is wet also. Can someone tell me what is going on here?
#31 of 66
Re: AC condensation leakage in cabin [cabbbailey] by 442dude
Aug 09, 2008 (4:54 am)
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Replying to: cabbbailey (Aug 08, 2008 5:03 am)

There is a drain for the AC that is either disconnected or plugged. Chances are there a bunch of glop in there which plugged it up. Clean it out and make sure the drain hose that goes through the firewall is clear and your problem should go away.
#32 of 66
Re: AC condensation leakage in cabin [442dude] by cabbbailey
Aug 16, 2008 (6:26 pm)
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Replying to: 442dude (Aug 09, 2008 4:54 am)

I took it to my mechanic last week. He hooked a long nozzle to his air hose and then stuck that in the drain tube underneath and blew it out. It drained outside for a couple days and the inside carpet started to dry up. Then evidently it stopped up again because now it's draining back into the floorboard again. Does it need to be blown out from underneath, or should it be drained from the inside? How can I get to the drain from the inside? Is it behind the center console? How does that disassemble?
#33 of 66
Re: A/C Problems with my 97 Venture [demonfatcat] by motorhead57105
Aug 16, 2008 (10:53 pm)
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Replying to: demonfatcat (Jun 28, 2007 2:13 pm)

I have a silhouette, but same difference. I justa had an episode where the front wasnt cooling but the rear was, and I hooked up guages and it read normal. So i took it in to the shop and it was a pound and a half low of refrigerant, somehow since it holds more refrigerant the guages read normal readings. I know there is only one compressor, and only one place to hook guages. The only way to really know if the refrigerant is low, is to reclaim it with a machine that weighs it.
#34 of 66
Re: AC condensation leakage in cabin [cabbbailey] by chases
Aug 18, 2008 (8:05 am)
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Replying to: cabbbailey (Aug 16, 2008 6:26 pm)

Blowing it from the bottom to the inside just unplugs the hose, but the junk plugging it up is still in the unit. At this point, if you want it fixed for good you need to consider taking apart the inside to get to the coils and then clean it out.
 
Preventitive maintenance, like frequently blowing out your inside air filters, could have prevented this. This is commonly overlooked. When I purchased my van at 70,000 miles and checked those filters, they were plugged and had 6" of pine needles stacked on top of them.
#35 of 66
Re: AC condensation leakage in cabin [chases] by 442dude
Aug 18, 2008 (3:22 pm)
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Replying to: chases (Aug 18, 2008 8:05 am)

correct...now you have to take apart the air box as there's probably a bunch of stuff stopping it up...auto zone has a pretty good repair manual for the venture on line, you can check there to see how to take the whole thing apart to get to it. Look in the section under heating & cooling & look at the instructions for the heater core. If you can get to the heater core, you can get to all of the goop that's plugging up your drain...

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