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Chevy Silverado and GMC Sierra Transmission Problems

506 messages,  Last post on Dec 01, 2009 at 1:57 PM

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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

#368 of 506 Re: bump at 1st shift 2006 sierra [grumphy] by 9_376_Slvrdo Dec 07, 2008 (1:50 pm)
Replying to: grumphy (Dec 07, 2008 12:34 pm) Hey Joe in regards to your 04 Silverado.   If your truck has a lot of hard tow miles it could be in need of some internal parts. If it's just 112k everyday miles then it could just be the 1-2 shift servo. The servo's are on the outside (side) of the 4L60e in your truck (assuming it's a 1500). It's an inexpensive quick fix also. The Hydro-Matic (GM) transmission is one of the best out there. BMW even uses the Hydro-Matic automatic trans. in their 5 Series cars. It's a very solid well built transmission. Don't listen to the GM haters out there.
#369 of 506 Re: 2000 silverado will not go into gear [dkelley85] by 9_376_Slvrdo Dec 07, 2008 (3:38 pm)
Replying to: dkelley85 (Dec 05, 2008 8:37 pm) If there aren't many hard tow miles it might not have been properly serviced by the guy or guys before you. This is the reason General Motors now uses Dextron VI ATF, 100k before first service, verses 30k for the Dextron III or IV that your truck uses. The Hydra-Matic auto trans. is one of the best built out there. BMW also uses the GM Hydra-Matic (a 5 speed auto exclusive to BMW) in their 5 Series premium cars. I've always driven a Chevrolet from an '86 Chevy 3/4 ton 4x4,'96 Chevy Z71 to an '07 Tahoe and back to a Silverado. General Motors, GM Powertrain, makes the best most solid powertrains bar none. GM has the best interiors, the best ride and they are the most reliable out there.   Don't listen to the GM haters out there. We really do need the domestic auto makers around. They are a large part of our Gross Domestic Product and of the Big Three at least General Motors makes a great product. GM's board just needs to replace parts of upper management including CEO Rick Wagoner possibly with Bob Lutz the "car czar" who is credited with the recent improvements at GM. Besides, what would the president do without his sweet custom armored Cadillac. Our lawmakers won't let the Big Three fail, too much of a trickle down effect. They've just been burned twice by AIG (A**holes, Ignorant and Greedy) now, so Congress just wants a solid plan. USA-1!!
#370 of 506 Re: Transmission possibly slipping [drapheus] by cowboy50 Dec 12, 2008 (9:25 am)
Replying to: drapheus (Oct 16, 2008 10:51 am) hope this helps   You need to check fuel pressure at the rail on motor and check it at the fuel filter. If you got good pressure at the filter suppect the the fuel pressure regulator. If pressure the same both spots suppect fuel pump is weak.
#371 of 506 Transmission shifting problems 2003 Z-71 by Pard Dec 16, 2008 (5:58 am)
Anyone had problems with there truck trying to start off in high gear and will not down shift or shift into overdrive. The problem is intermittent, and there is no diagnostic codes shown. Sometimes I can put back in park and shift back to drive and that fixes it momentarily. Replies to this message: bigblock2 (Dec 20, 2008 2:14 pm)
#372 of 506 Re: Transmission shifting problems 2003 Z-71 [Pard] by bigblock2 Dec 20, 2008 (2:14 pm)
Replying to: Pard (Dec 16, 2008 5:58 am) I have the same trouble with my 2005, Z71, with babied 20,000 miles.... seems to start in third if you let it. If i shut if off for a few minutes and re start the truck it will work fine. I'm thinking one of the servos is sticking ,but like you mentioned the problem is intermittent...
#373 of 506 Removing transmission pan on 04 Sub by jamonett Dec 20, 2008 (8:19 pm)
Hello everyone,    I am having a very difficult time removing the transmission pan on my 04 Suburban. The bracket that holds the shift cable is blocking me from dropping the pan down. I have tried bending it out of the way, but that doesn't work as it is too stiff to bend it very far. And I don't want to break it off of the transmission case. It looks like I need to drop/remove the exhaust Y and then I can "fold" the pan down at a 90 degree angle and slip it out from behind the bracket.   Any suggestions?   Thank you in advance for any help.   John Replies to this message: obyone (Dec 20, 2008 10:15 pm) 2001silverado (Mar 15, 2009 7:44 am) bumperdude (Mar 15, 2009 8:35 am)
#374 of 506 Re: Removing transmission pan on 04 Sub [jamonett] by obyone Dec 20, 2008 (10:15 pm)
Replying to: jamonett (Dec 20, 2008 8:19 pm) Do you have the 5.3 or 6.0? Replies to this message: 2001silverado (Mar 15, 2009 7:44 am) bumperdude (Mar 15, 2009 8:35 am)
#375 of 506 4L80-E Auto Trans Wire Harness Fluid Leak by JParke Dec 21, 2008 (2:43 am)
Trans fluid is leaking through the wire harness plug. What is the cause. Is replacing the harness the only remedy? Can the fluid cause a short circuit at the plug. What seals the plug on the inside of the case? How difficult is it to replace the harness?   Jim
#376 of 506 DRAGRACER30 by DRAGRACER30 Dec 25, 2008 (7:12 pm)
I HAVE A 01 CHEVY 2500 WITH AN ALLISON 1000 TRANSMISSION. THE TRANSMISSION IS STARTING OFF IN 1ST GEAR AND IMMEDIATELY SLAMS INTO 3RD GEAR. IT IS THROWING A P1711 CODE. THE SILINOID HAS BEEN CHECKED AND IT IS NOT THAT. WHAT ELSE COULD MAKE IT THROW SLAM INTO 3RD GEAR AND THROW THAT CODE? PLEASE HELP!!!!!!!!!!!!
#377 of 506 2004 silverado 4th gear problems by geez150 Dec 26, 2008 (8:59 am)
My 2004 chevy silverado 5.3 4x4 is having tranny trouble. After the tranny shifts into 4th gear and i'm doing about 40-55mph and in the rpm range of 1500-1800 it starts bucking bad. If i either speed up to say 60 it goes away or if i slow down it goes away. The STEALER has no clue! Any help would be great!

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