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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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| Hi, I'm new to this board, please be gentle. Thanks! I have a new (4890 miles) chevy silverado with the 6.0 litre Vortek Max and auto 4 speed tranny. Everything has been great up until this morning. Drove it to church, got in it ready to come home, and notice there is no indicator marking present to let me know what gear I am in. Waiting to get out of the parking lot, a loud click comes from somewhere in the dash every time I release the brake pedal. Now, I get her out on the road and BAM! She shifts into 1st gear hard enough to throw me back in the seat, same with second. I finally get her home, switch off the engine, and check the tranny fluid. Bright red and right on the mark where she should be, so I get back in it and try it again. This time the indicator light under the gear selections reappear, and I drive her about a mile down the road shifting flawlessly when...BAM! engine service light comes on, clicking back in the dash, and even more harding shifting limping back home. Of course, I will be at the dealership first thing tomorrow morning, but wondering if anyone out there has any ideas or experience with this problem? Thanks in advance! | |
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Mine is an 07 new body style. bought it last Dec right after they came out. at 7,000 miles mine didn't make a noise at all it just freewheeled and seemed to be in neut. after i let it cool for 10 min it would go again for about 5 miles. when i got home i put the keys under the mat and left it in the street and called the dealer. when they opened it up they could not find all of the lock rings that should have beenin the tranny. they ordered all new stuff. it has 18,000miles and hasent missed a beat. I had a cat back system put on it at 17,000miles so it could expell more exhaust. sounds better seems to run better and i have picked up mpg from 10.6 to 11.5. also at about 17,000miles it has picked up some pep at low speed. good luck.
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Replying to: bumperdude (Dec 02, 2007 1:01 pm)
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Replying to: hotsaucebill (Dec 02, 2007 2:30 pm) |
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Replying to: beaverman (Nov 17, 2007 6:48 pm) The idiot at the car lot was right. The slave cylinder is bad. Near the clutch actuating arm is a smaller clutch slave cylinder. There is a piston inside, and it has seals on it that can go bad, just like on a brake wheel cylinder. Sometimes they can be honed out and rebuilt with new seals, sometimes not. It is a common problem. It could also be the clutch master cylinder, but check the slave first. It is smaller, easier, and cheaper to replace than the master. Sometimes pumping the clutch pedal works, just like pumping the brake pedal when the brake master cylinder or wheel cylinder goes bad. But that's just a temporary solution until you can get it home and replace it. 1offroader |
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I have an '07 silverado with a scrubbing noise in the motor. Took it to the dealership and was told it was a vibration that could not be fixed. Any thoughts?
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Replying to: tinamatt (Dec 05, 2007 7:48 am) |
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| I have an old k1500 plow truck that was perfectly fine three weeks ago until I got a foot of snow today and I went to plow and had no drive or reverse gears. The fluid is fine. Is it possible that the cable between the shifter and the tranny just broke? If so is there a quick fix im snowed in... | |
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Replying to: tinamatt (Dec 05, 2007 7:48 am) |
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| I have a 2002 Duramax w/ the allison 5 speed automatic transmission. I have 116,000 miles on it now. Replaced the transfer case 2 months ago when it burned up. The tranny now slips out of gear every 1/2 mile or so, usually between 4th and 5th gear. Had it in to the GM certified mechanic twice, 570 dollars later they can't find the problem and recommend a new tranny (rebuild). At their price and failure to fix it after 2 tries I took it to a transmission place. They put in a rebuild Allison tranny and guess what?, it still slips out of gear! Someone suggested perhaps it is the 4x4 actuator switch. It would appear that it is not the tranny itself but no one seems to be able to figure these allisons out. Any thoughts or suggestions? | |
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