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Vans & Minivans Chrysler/Plymouth Voyager, Dodge Caravan Caravan/Voyager Heating/Cooling Problems
72 messages, Last post on Aug 17, 2009 at 9:10 AM
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Replying to: shipo (May 16, 2008 5:14 am) The mini has the 3.0 engine. Question: does this negate the "spring tensioner"/ belt tightening observation? Thanks. NClake1
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Replying to: nclake1 (May 16, 2008 2:47 pm) Ummm, I don't actually know, even though I've worked on many-many Chrysler minivans, I've never even seen one with a 3.0 liter engine.  I'll ask around and if I come up with something, I'll post the results.  Best Regards, Shipo |
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Replying to: gg1328 (May 11, 2008 6:36 pm) I have the same problem with my van. Have located the switch? If so, how do you go about jumping it? Thanks scott |
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'97 GC Sport -- Runs perfectly unless the AC is on. Then I hear a growl that sounds like it is coming from the transmission. This more prominent from a standing start that at highway speeds. However, I can make it stop at any time by just turning off the compressor. Any ideas?
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Replying to: jwp1775 (Jun 21, 2008 2:27 pm) 1) The growl isn't coming from your transmission. 2) The growl is coming from your A/C compressor. Keep us posted. Best Regards, Shipo
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Replying to: shipo (Jun 21, 2008 3:27 pm) Seems logical. But then why does the growl not continue at highway speeds? The compressor is still engaged.... But I can't hear any growl. It is also not audible at idle. But upon acceleration, it is quite loud.
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Replying to: jwp1775 (Jun 21, 2008 5:42 pm) Why not at idle? Probably because the RPMs are too low to cause the compressor to make the noise. FWIW, compressors get noisy as they age. The compressor in our 1998 DGC is starting to get a little loud as well, and that is causing me to consider a prophylactic replacement before it grenades. FWIW, when compressors go, they usually send lots of shrapnel around the cooling system, and that stuff is a pain to evacuate, and if it isn't done properly, then the debris can cause replacement compressors to grenade as well. |
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Thanks.
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Replying to: jwp1775 (Jun 22, 2008 6:58 pm) 2000 Chevy Impala, 3.8L 200 hp motor, runs well. When the A/C is on and the car sits idle for more than 30 seconds or so, the transmission will jump the next time I accelerate from a dead stop. I try to keep an eye on the temp gauge while this is happening. Typical GM temp gauge, low 140, high 260, the needle always stays one tick below the middle. Recently, however, when I notice the problem, the needle climbs to the middle tick or slightly above. This is when the jump is most noticeable. I'll slightly tap the gas (I'm trying not to gun it) and the car will rev up, but not go anywhere. Then first gear will engage at the raised RPM, causing the car to lurch. If the A/C is off, this happens significantly less unless it's a very hot day. I took it to a local mechanic who told me that the transmission was going bad and needed to be rebuilt, which on a FWD car is very expensive. He said something about the first gear not holding pressure and therefore not engaging properly. But I disagree with his analysis, seeing as it only happens when the engine runs hotter than normal. When the engine is cold, I can slam the gas pedal and it will take off without a hitch. I considered taking the car to another mechanic and having them flush both the trans fluid and the coolant and see if that improves anything. But then I ran across your advice about the compressor sending shrapnel through the cooling system on this feed. When I turn on the A/C in the car, there's a slight clunk as the compressor kicks on, and then a whirring/buzzing noise when I rev the engine. Also the engine seems to work twice as hard. Do you think the compressor is going bad? Or does it sound like an old coolant/trans fluid problem? The car has 74,000 miles on it; neither fluids have been replaced while I've owned it (since 38k mi). I was under the impression that both flushes could wait till at least 100k mi. I don't want to spend any more money than I have to, and if the compressor is no good, a fluid flush won't help that situation. What do you recommend?
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Replying to: driver101801 (Jul 02, 2008 10:55 pm) FWIW, transmission "flushes" can cause waaaay more problems than they solve, and I would NEVER allow any automatic transmission I own to be subjected to a flush. Best Regards, Shipo |
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