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Chevy Venture Transmission
by russ21
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Jun 14, 2007 (7:59 am)
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I have a 2000 venture. Every few weeks or so out of nowhere the auto transmission make a distinct winning sound that lasts a few hours to one day max. During this period every shift is very hard, the van bangs with every shift no matter how slow or fast I approach each shift. New transmission fluid and filter make no difference.
98% of the time it is quiet and shifts perfect and smooth in all gears. It seems to be tied to longer drives with altitude changes & warmer Temperatures, but not always? It always goes away before I can get it test driven by a mechanic. Van has 103,000 mi on it now been duing this for the last 40,000 mi at least.
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- #4 of 42
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Re: Chevy Venture Transmission [russ21]
by kayfuslee
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Jun 28, 2007 (11:17 am)
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Replying to: russ21 (Jun 14, 2007 7:59 am)
I too have a 2000 venture with 60,000mi. My trans out of the blue kind of bucks between shifts. It only does it once in awhile under any condition. I think I may have heard that whining sound from time to time, but very faint.
Good luck.
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- #5 of 42
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Re: Chevy Venture Transmission [kayfuslee]
by russ21
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Jun 28, 2007 (4:48 pm)
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Replying to: kayfuslee (Jun 28, 2007 11:17 am)
I have been able to narrow down this problem to what I believe to be hot transmission fluid. The problem has been getting worse and I went to the hand car wash and using the high pressure I blasted the bugs and junk out of my radiator which part is used for cooling the transmission fluid. I have not had the problem since but have not been driving hard yet. The fluid is new only about 10,000 mi or less.
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- #6 of 42
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Re: Chevy Venture Transmission [russ21]
by jingles4
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Jul 23, 2007 (7:20 am)
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Replying to: russ21 (Jun 14, 2007 7:59 am)
I have the same exact problem, seems like it will not start doing it until you stop after driving for awhile and take off again, it starts whining and shifts hard, if I shut it off for a few minutes it will run fine, until it runs for a few miles then it starts again....I've noticed it does it in warmer weather also....I've had the tranny flushed....Think I will give the radiator fins a good cleaning as posted before and see what happens....Any other suggestions would be greatly appreciated !!!!
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- #7 of 42
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Re: Chevy Venture Transmission [jingles4]
by russ21
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Jul 23, 2007 (12:51 pm)
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Replying to: jingles4 (Jul 23, 2007 7:20 am)
I have about 2000 miles left on my extended warranty. So I took the car to the dealer to see if they could figure out why the transmission does what it does. They tested it out and said it was the pressure switch in the transmission. The warranty covered it so it was replaced a couple of weeks ago. Took it on a test drive up in the mountains and so far everything works great. I guess the hot transmission fluid just made things worse but was not the problem. New transmission fluid did help some but did not fix the problem.
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- #8 of 42
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Reply to russ21
by jingles4
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Jul 24, 2007 (3:33 am)
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Thanks russ21, I figured it would be something internal, mine of course is out of warranty but right now it's my wifes only means of transportation until I get out from under Chapter 13 Bankruptcy...Guess I'll makes some calls, would it be better to let the GM service dept. do it or take it to a tranny shop locally??? I'm thinking GM ....
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- #9 of 42
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Re: Reply to russ21 [jingles4]
by russ21
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Jul 24, 2007 (6:57 am)
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Replying to: jingles4 (Jul 24, 2007 3:33 am)
If I did not have a warranty then I would get it troubleshoot just to confirm and a total repair bid at a professional place like AAmco & also the dealer. I would expect a transmission expert to be more efficient and lower cost? Good Luck.
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- #10 of 42
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Re: Chevy Venture Transmission [russ21]
by twinchevy
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Jul 29, 2007 (3:23 pm)
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Replying to: russ21 (Jun 14, 2007 7:59 am)
I too have the same problem and I will try to clean out the radiator. Does anyone know what sensor is failing and is it costly to fix yourself?
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- #11 of 42
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Re: Chevy Venture Transmission [twinchevy]
by russ21
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Jul 29, 2007 (4:41 pm)
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Replying to: twinchevy (Jul 29, 2007 3:23 pm)
You will need to get it checked out by either a dealer or a transmission expert. The part that caused this problem with my van was the transmission pressure switch that controls the transmission shifting. The dealer charges around $600.00+ or at least mine did. Did not get a quote from a transmission expert company. Either way I would get it troubleshot and quoted on paper.
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- #12 of 42
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Re: Chevy Venture Transmission [jingles4]
by carphil
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Aug 21, 2007 (6:28 pm)
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Replying to: jingles4 (Jul 23, 2007 7:20 am)
My trans would shift hard and the check engine light would come on periodically. Later had battery wearing down. Took to dealer to change battery (since not real easy) and they found a wire shorting. Afterward, trans worked perfectly. Cost about $350 to fix short.
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