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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra Transmission Problems
506 messages, Last post on Dec 01, 2009 at 1:57 PM
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| i have noticed a few people mention the tranny clunk after stopping, mine doesn't clunk but it does seem to still be engaged when I try to stop,it is very hard to get it to stop easily, almost like having a very heavy trailer on the back. If i take my foot off the gas pedal, it will basically maintain that speed for at least 6-10 blocks, mainly between 45-55mph. I have never driven a vechile that doesnt slow down when your foot is off the gas? The tranny also hesitates for 2-4 seconds between the 2-3 shift point, almost slams your head into the steering wheel. I can feel vibrations through the floorboards & it seems to shutter in all the lower gears & the exhaust is extremely loud & odd sounding. On 4 occasions I have experienced a "surge", that is I released my foot from the gas pedal & the RPM's increased 500 & the engine sped up, lasts 3-5 seconds. Guys I have had this death trap into 3 dealerships, 1 of them 3 different times, the 3-4 clutch plates have been replaced, pcm upgrade, new PCM/computer installed, the pcm relearned many times, by the way this solves all the issues for about 500-800 miles & it morphs back into its old self. GM is of no help, 80 hours on the phone with them, now district rep in detroit is on the case, laughable. So please do not feel alone in your troubles, keep fighting, they want you to just go away that is their idea of customer service. If your new GM product works then I'ld knock on wood.Good luck | |
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Replying to: jsross44 (Jan 29, 2007 7:09 pm)
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| I HAVE A 89 CHEVY HALF TON PU, TRANSMISSION IS SLOW TO SHIFT, HAVE TO WIND UP THE RPMS, THEN IT SEEMS TO SHIFT FROM 1ST TO DRIVE SKIPPING SECOND. YOU NEVER FEEL IT SHIFT INTO OD AND DRIVING DOWN THE ROAD I CAN SHIFT BACK AND FORTH FROM D TO OD AND YOU CANT FEEL ANYTHING BUT IF I LET OF THE GAS AND SHIFT INTO D OUT OF OD YO CAN FEEL IT SHIFT DOWN. ALSO IF I SLOW DOWN TO MAKE A TURN IT WILL SHIFT BACK DOWN INTO 1ST OR 2ND, CANT TELL WHICH ONE FOR SURE. ANYBODY GOT ANY IDEAS? | |
I Have a 1993 Silverado, My transmission only leaks when I go over 55 mph for more than an hour or so. Im not sure if it is the seal or maybe the vent? If any one can help me I would appreciate it?
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I started hearing a grinding noise from what sounded like the transmission. It would happen when at low speeds in 1st or 2nd gear. I would have to pull over, shift to neutral, and stop to get the noise to stop. It happened intermittently but started happening more and more. Assumed it was the trans, and had it replaced with a rebuilt. Two days later the sound returned, and getting progressively worse. the drive shaft looks like it's within limits, they looked at the rear differential and it looks fine. Any ideas? thanks 2003 Chevrolet Silverado 5.3L V8
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Replying to: mikesquid (May 14, 2009 12:00 pm) |
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Replying to: hoookup (May 19, 2009 5:21 pm) |
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| I have an 01....we bought it about 2 months ago and it has been in the shop for the last month, we can't figure out whats wrong with it. It has an allison tranny, computer was reading bad tranny codes so we had the tranny rebuilt, had GM re-flash the computer. It didnt work, It was putting itself in limp-mode. Going to about 40 mph then shifting into neutral. It's still doing it even after the tranny rebuild. EVERYTHING in that tranny is new. Have tried a lot of things, replaced switches, rebuilt torque converter, etc. nothing has worked...still is in fail safe limp mode. Any one know anything about this? maybe give me some suggestions on what to check around for? | |
| I have a 2000 Chevrolet ext cab 4x4, i have had the transmission rebuilt and now it will only go into 1st and reverse. The pump as been replaced and the valves all check. any ideas? | |
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I bought a 04 Sierra with 110km on it from a dealer in Edmonton. It passed inspection and was delivered to me last night in calgary. Sometime today I was coming around a corner and I punched it a little bit, all of the sudden I heard a major CLUNK. Then it started reving like crazy. Now my truck won't move in D or 3rd, I had to limp home in 2nd gear. Super pissed because I now have to take it into the shop and I haven't even had it for 12hrs. Dealer was semi helpful in arranging a local mechanic, but I am worried it may happen again. And from all the posts in these forums my confidence if definitely hanging by a thread. Any thoughts as to why my truck moves like a castrated dog.....???
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