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Chevy Silverado and GMC Sierra Transmission Problems

503 messages,  Last post on Nov 10, 2009 at 5:28 PM

You are in the Chevrolet Silverado & GMC Sierra Forum. Your Host is kcram

What is this discussion about? Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Transmission, Truck


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#428 of 503
Re: 4l60e has no reverse moves in neutral [helpnick] by ineedhelp690
Apr 06, 2009 (7:43 am)
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Replying to: helpnick (Apr 05, 2009 11:33 am)

thank you i will be checking that out today. i tore the pan of yesterday and 2 or 3 bolts were loose. and i think one of the valvebody bolts are in the wrong place.im going to take the valve body down was wondering if you would know where i can get a bolt diagram at to double check my bolt locations.thanks for the help.
#429 of 503
Re: 4l60e has no reverse moves in neutral [ineedhelp690] by ineedhelp690
Apr 06, 2009 (2:01 pm)
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Replying to: ineedhelp690 (Apr 06, 2009 7:43 am)

well in stead of dropping the valve body i decided to tighten up the bolts and found that they were all in the right place and that didnt do anything.still moving in neutral and nothing in reverse.weird how i can dive it though and still have all gears but reverse has nothing.park jumps and neutral drives. i will be checking the spacer plate and gaskets next any tips on putting the gaskets on while tranning still in would be appreciated.And any other info would be helpfull at this time.thank you
#430 of 503
HELP!! by dotr04
Apr 08, 2009 (9:43 am)
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I have a 1994 chevy dually 3500 1-ton and am having trouble with the tranny. After driving on the freeways for a period of time then getting off an off-ramp, the truck ssems like it is in neutral - when I shift to a lower gear nothing happens and when I try to put it in park or reverse it won't go in (makes a grinding noise). It drives fine and their is no slippage when I just drive around town, stoplight to stoplight, and drives fine when on the freeway, but when I get off the freewayit;s like it gets stuck in the gear it's in and wont downshift when I slow down. Eventually it will go back into gear, but not because of something I do - just does it by itself? any ideas?
Thanks,
#431 of 503
Service 4WD Message by bimmerhed
Apr 08, 2009 (6:37 pm)
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I was test driving a Z-71 4X4 and I noticed a Service 4WD message in the cluster. I tried to press the 4WD buttons but nothing seemed to happen. Also noticed a red led that indicated "N" that is located between 2 of the 4WD buttons. The truck has193K miles on it. If the transfer case or transmission needs servicing, will it deactivate the 4WD function??????
#432 of 503
Re: HELP!! [dotr04] by akjbmw
Apr 10, 2009 (12:02 pm)
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Replying to: dotr04 (Apr 08, 2009 9:43 am)

Any other folks thinking heat related?
Plastic pistons in the valving process start to crack (older Sable/Taurasourus do) and get stuck in position from freeway speed heat? Maybe gunk collection?
Find a trans shop or mechanic you trust.
I would expect a shop to be required to do a whole trans redo. Liability issues would prevent a less expensive valve body "patch".
#433 of 503
Re: Clunk (down shift) 10-15 seconds after being at a complete stop [firejj by utlagatus
Apr 12, 2009 (10:25 am)
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Replying to: firejj09 (Apr 05, 2009 12:55 pm)

I have an 07 GMC Sierra and experience the same problem. It doesn't happen every time. Let me know if you find out anything and I'll do the same.
#434 of 503
1995 CHEVROLET SILVERADO TRANNY!!!!! by wwc_da
Apr 14, 2009 (7:11 pm)
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PLEASE HELP ME OUT ANY WAY YOU GUYS CAN!! I JUST BOUGHT A 1995 CHEVROLET SILVERADO Z71 TRANNY WAS NOT SHIFTING OUT OF 2ND TO ANY OTHER GEAR!!!!! SO I HAD IT REBUILT PUT IT BACK IN AND IT SHIFT'S HARD FROM 1ST TO 2ND... JUST LIKE IT WAS DOING BEFORE I HAD IT REBUILT... AS WELL AS IT STILL WON'T SHIFT OUT OF 2ND TO ANY HIGHER GEAR!!!????????
#436 of 503
2003 5.3l Z71 clunks and such by garlinghouse
Apr 15, 2009 (12:47 pm)
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Hi, this is my first post. i am a former Dodge service advisor so I have some mechanical experience in trucks. I currently purchased an 03 chevy Z71 ext cab with 5.3l. I have the steering shaft clunk issue. a buddy of mine got a new steering shaft put in which is just like the original. he is starting to have issues again. my suggestion is purchasing a updated heavy duty one through LMC truck catalog. it runs about $379.00 and claims to solve this issue. second, I also have the 2nd to 3rd gear shift clunk underneath my truck at low speeds or going up hills. Another buddy of mine has an 04 sierra ext cab Z71 with 5.3l and had the same issue at 22k miles. He got this issue fixed at the gmc dealer where he lives, they replaced his driveshaft with a beefier one which looks like a 2500hd shaft not sure though but definately beefier than the stock one. he now has 40k miles and says he has had no further problems. Hope this is helpful, I plan to do the same with mine and also put the steering shaft from LMC when i have the money to do so (Damn Economy!). Overall i am pleased with my truck and absolutely love the ride, though not as exciting when flooring it like a Hemi but still satisfies my needs!
#437 of 503
Re: Clunk (down shift) 10-15 seconds after being at a complete stop [firejj09] by detbreakdown
Apr 16, 2009 (6:37 am)
Reply

Replying to: firejj09 (Apr 05, 2009 12:55 pm)

I would suggest you have someone check the speed sensor it tends to get stretched out then it shorts out.

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