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Chevy Venture

2457 messages,  Last post on Nov 27, 2009 at 6:06 AM

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What is this discussion about? Chevrolet Venture, Van


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#2433 of 2457
Engine Squealing [tony17112acst] by jeddry
May 18, 2009 (3:20 pm)
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Replying to: tony17112acst (Oct 25, 2008 7:41 pm)

Tony,
 
Man I sure hope you can help me out with this one. My 2001 Venture has started making a funny squealing sound when I am driving and I need to give it some gas to get up a hill or anytime it has to downshift and rev up a bit. Any suggestions on what this could be? I have just changed the belt and tensioner and still a loud squealing noise when it revs up. Any ideas? Could it be another pulley or water pump?
 
regards,
 
Stephen
#2434 of 2457
Re: Squealing sound please help!! [chases] by jeddry
May 18, 2009 (5:25 pm)
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Replying to: chases (May 04, 2009 6:53 am)

Would a bad pulley cause this squeeling? I just changed the belt and tensioner and no better.
#2435 of 2457
Re: Engine Squealing[442dude] [jeddry] by 442dude
May 18, 2009 (6:46 pm)
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Replying to: jeddry (May 18, 2009 3:19 pm)

I think you're on the right track. If you're around 100K miles your water pump is likely the culprit as they usually don't last too much longer than that. If you look at the water pump closely you might see a tiny bit of coolant starting to work its way out - that's indicative that the pump is shot.
 
Take the belt off and try to turn all of the pulleys by hand. Except for the crankshaft (obviously), they should all be pretty easy to turn by hand. You might find the problem that way.
 
Another way to check the water pump while the belt is off is to grab the pulley and try to move it in and out or up and down. If there's any play in it, the bearing is shot and the pump is due for replacement.
 
I don't own our Venture any more so I can't go outside and look but there's likely an idler pulley in addition to the tensioner pulley so be sure to check that too.
 
You didn't mention having the AC or defroster on so we won't talk about the compressor for now.
 
Good Luck - write back and let us know how you made out....
 
John
#2436 of 2457
Re: Engine Squealing[442dude] [jeddry] [442dude] by jeddry
May 19, 2009 (2:01 pm)
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Replying to: 442dude (May 18, 2009 6:46 pm)

Thanks for the advice, I will check in the next few minutes, my air conditioning has not worked in about a year, would this have anything to do with it?
#2437 of 2457
Re: Engine Squealing[442dude] [jeddry] [442dude] [jeddry] by chases
May 19, 2009 (2:05 pm)
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Replying to: jeddry (May 19, 2009 2:01 pm)

I had my idler pully and my tension pulley go out! So check them all!
 
Don't forget to check the alternator while your at it.
#2438 of 2457
Re: Engine Squealing[442dude] [jeddry] [442dude] by jeddry
May 19, 2009 (2:09 pm)
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Replying to: 442dude (May 18, 2009 6:46 pm)

I can't visually see any water after a 30 minute drive but things look a little rusted. Is this the only indication that it is shot? Do you think the squeeling could be coming from anything else?
#2439 of 2457
Re: Engine Squealing[442dude] [jeddry] [442dude] [jeddry] by chases
May 19, 2009 (2:19 pm)
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Replying to: jeddry (May 19, 2009 2:09 pm)

squealing: If it is doing it while sitting idle in your driveway it is a bearing going out on one component on the serpenntine belt.
 
I have also replace the power stearing pump.
 
My suggestion to you would be to remove the belt, pull off the pullies one by one and feel with you fingers how easy/hard it is to turn. It should turn fairly easy with no (NO) bumpy feeling at all.
 
a drastic suggestion: check your parts place for returns! you can always take the approach of changing things out till you find the problem!
#2440 of 2457
Re: Engine Squealing[442dude] [jeddry] [442dude] [jeddry] [chases] by jeddry
May 19, 2009 (2:58 pm)
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Replying to: chases (May 19, 2009 2:19 pm)

Is it hard to change the water pump? Anything I should know before starting? What about this idler arm, what could that cause?
#2441 of 2457
2000 Chevy Venture, Many problems. by corbyzmom
May 19, 2009 (4:11 pm)
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Ok, I bought a 2000 Chevy Venture 2 weeks ago and it has some problems. When driving it after it warms up for a bit, it tends to stutter/stall, typically under 40 mph. We replaced the crankshaft sensor, not sure which one, A or B, but it was behind the tensioner pulley. Now it it throwing a few codes. One is P0742, Torque Converter Circuit is stuck on, and Two is, P0336, Crank Shaft position sensor A, check range and performance. I m no mechanic by any means, but I do know that if it is the Torque Converter Clutch Switch, the tranny has to be pulled, which I cannot afford to have done. Any ideas on what could be going on? Thanks in advance. Oh, and I forgot to add.... sometimes when you start the van, it immediately dies, and it takes a few times to get it started, and usually once you start it, it idles very rough for the first few minutes.
#2442 of 2457
Re: Engine Squealing[442dude] [jeddry] [442dude] [jeddry] [chases] [jeddry] by 442dude
May 19, 2009 (4:25 pm)
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Replying to: jeddry (May 19, 2009 2:58 pm)

If you've ever changed a water pump, the one on the 3.4 is no harder or easier than any other. Most important things are that you torque the bolts correctly and you bleed the air out of the system when you refill.

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