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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

#486 of 506 2001 CHEVY SILVERADO HD TRANSMISSION 2WD by rhemcomm Aug 22, 2009 (12:56 pm)
MY 2001 CHEVY SILVERADO HD ONLY DRIVES IN GEAR 1,2,3. IT I LIKE IT IS NOT ENGAGING IN DRIVE OR REVERSE. I CAN HEAR TRANSMISSION TURNING BUT TRUCK BARELY MOVES. COULD IT BE TORQUE CONVERTER. IT WENT INTO DRIVE AND REVERSE FOR A SECOND AND HASNT DONE IT AFTER THAT. OTHER THAN THAT IT DRIVES GREAT IN GEAR 1,2,3.
#487 of 506 GMCsierra transmission by jim340 Aug 27, 2009 (11:29 am)
2001, 5.3 , 77k+ miles;pulling small 5th wheel (under 4000 lbs) for about 5000-6000 miles over the last 5 years. problm: going up steep hill, does not want to shift to low gear. only happened twice- 1 year ago and again last week. Transmission mechanic says I have been lucky, its a Blazer transmission and could go any time. said get a smaller camper or a bigger truck
#488 of 506 4l80e in 2006 GMC Sierra 2500HD 4x4 by redbuggyboy Sep 13, 2009 (9:38 pm)
Here is the scoop...Love this truck! Never had problems. At 35500 miles the tranny started upshifting hard. Parked it at night hasn't done it since. Took to dealer, can't duplicate. Few days later, the reverse doesn't engage without extra human tricks like extra gas and working shifter in and out of gear. That happened twice. Took to dealer, can't duplicate. Ok we are still under warranty (plus extended) so we will continue to drive it till it fails. All seems ok untill it is driven to Houston and back about 80 miles round trip and the tranny overheats with a message from the DIC. Took to dealer ( real jerk service manager) didn't wanna deal with it because we didn't buy it from them so with a call to GM they changed their mind. Here is the warning. They claimed it was low on fluid. Bull shit! and their computer said change fluid and filter at our expense. This is the game. You say no and they win because you didn't do as they recommended. You do it yourself they will claim you voided warranty by screwing something up. Outsmart these cocksuckers. I said ok. Go for it. Yeah it sucks out of $135 for them to use us as guesswork diagnosis guinea pigs. Picked it up and we did the test drive. Didn't even make it to Houston before it overheated. Well its back at the dealer and they are gonna tear it down. I in the mean time I will gather weapons such as the ATSG manual and a current live data OBDII scanner. I will keep yall posted on the outcome. Thanks to all that post here, you have given me a weath of knowledge to go to war with these asses! Replies to this message: redbuggyboy (Sep 15, 2009 8:46 pm) redbuggyboy (Sep 30, 2009 5:26 am)
#489 of 506 Re: 4l80e in 2006 GMC Sierra 2500HD 4x4 [redbuggyboy] by redbuggyboy Sep 15, 2009 (8:46 pm)
Replying to: redbuggyboy (Sep 13, 2009 9:38 pm) Not much detail to report other than finding metal in the clutches and damage to the mechanical parts.(wish they were more specific) The dealer ordered one of the GM certified remanufactured and installed it today. We drove it home with no issues. The shifter lever is not perfectly aligned for putting it into 1st gear so I will see how hard it is to do and if it is too challenging will take it back and make them do it. The remanufactured has a 3yr 100,000 mile warranty on it and should have improvements that GM is aware are needed like a stronger sun gear I hope. If we have any problems I will be sure to post them. Replies to this message: redbuggyboy (Sep 30, 2009 5:26 am)
#490 of 506 04 GMC 2500HD Tranny question. by svga Sep 19, 2009 (10:15 am)
Hey all....I just picked up a 2004 GMC 2500HD 6L 4x4 a few days ago. I test drove it twice before I bought it. Here is my question.   Should the tranny make a slight "honking" (cant describe it any other way) sound when taking off from a stop? It doesn't happen all the time and I never heard it when I test drove it. I have not towed anything as of yet.   I also need to know what transmission is in it.   Thanks! Mike Replies to this message: sierrasommets (Oct 09, 2009 10:19 am) ruftoyzdawtr (Oct 09, 2009 12:15 pm)
#491 of 506 Clunk upon acceleration by joopdog Sep 25, 2009 (7:44 pm)
I have the following: 1996 Chevy Pickup truck V6 4.3L engine   When I accelerate from 1st to 2nd gear (10-15 mph) I get this noticeable clunk noise. It all started on Monday (09-21-2009), it just started out of the blue. No gradual noises, no warnings.   I believe it's coming from the transmission. And now, it's beginning to leak. I see wet spots under my truck that I've never seen before.   What is this? Do I need a new transmission? I hope not, I don't have the expense for this.   Any help would be appreicated.
#492 of 506 Re: 4l80e in 2006 GMC Sierra 2500HD 4x4 [redbuggyboy] by redbuggyboy Sep 30, 2009 (5:26 am)
Replying to: redbuggyboy (Sep 15, 2009 8:46 pm) Ok I was gonna be nice by not mentioning the dealer we took the truck in to have the tranny problem repaired but now I am pissed. First off after we got it back I did the inspection at home and they left the vent lines all loose and didn't put the wiring back into the retainers properly. The morons left the shift cable sitting on top the transfer case drive shaft as well. This is Don Davis out of Lake Jackson, Texas....incompetent and arrogant worthless dealer and technicians. I am posting this because just yesterday the tranny blew the front seal and bled everywhere and unfortunately we have to take it back to the pieces of shit that installed the rem tranny. I spent four hours cleaning up tranny fluid from the underside and all along the passenger side of the truck! So much for having a oil free truck!!!!! I will post on what takes place. Thanks Don!!!!!!!!!!!!!!!
#493 of 506 truck wont run when i shift into drive or reverse by mudd_lover Oct 06, 2009 (7:12 am)
i have an 88 silverado 1500 with the 700 r 4 tranny. i pulled my buddy out of the mud and the next day it didnt want to shift itself into 1st. so i would be leaving stoplights in 2nd gear. it would only go into first if i shifted it manualy on the collum. then when i would come to a stop the truck would die. it only wants to run in park or neutral. i can can get it to move if i rev it up to about 1700 rpm and drop it into gear and once im moving its fine. i was told it was the torqe converter. does anyone else have any ideas or have had a similiar problem? it is a rebuilt tranny with only 3000 miles on it.   thanks          Nick
#494 of 506 Transmission problems by chevygirl86 Oct 06, 2009 (9:17 am)
My automatic transmission is not shifting grears when it's on drive but if i shift from frist to second it will do it and then second to third it won't do anything it acts like its on neutral. Does anybody know whats wrong with it?can anybody help me!?!?! Replies to this message: ruftoyzdawtr (Oct 06, 2009 2:10 pm)
#495 of 506 To Everyone having tranny problems.... by ruftoyzdawtr Oct 06, 2009 (2:08 pm)
I posted back in May about my duramax, now just because yours may no be a duramax or an allison, DOESN'T mean you shouldnt read. My truck is STILL being worked on, and its OCTOBER! We found that there are many electronic components on the OUTSIDE of the tranny that can really screw things up if they get wet. On ours it was the "range switch" AKA "Park-Neutral Position Switch" AKA "Neutral-Back-up safety switch". Its a little electronic box on the outside of the tranny that relays info from your PRNDL display in the cab, to the transmission....If it gets wet, it will fry and your tranny won't work properly. It getting wet is caused by DIRECT water spray from a left turn onto this part (If the front and rear shields are NOT properly installed. We also found that, some of the wires going to different solenoids are shorted, that is what is being fixed now. Usually if you take your vehicle to a shop, they will scan it for codes....for FREE, just call around to find someone! its worth the drive and the time!

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