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It's a 2012 GMC Sierra 1500 and it will shift fine through
It's a 2012 GMC Sierra 1500 and it will shift fine through gears 1-3 but acts like it's going into neutral when it shifts to fourth gear … read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
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It appears to be slipping in 1 and reverse its a 2011 gmc
it appears to be slipping in 1 and reverse its a 2011 gmc 2500hd changed the fluid and the screen was clean and no metal on the screw … read more
Chris (aka- Moose)
Chris (aka- Moose)
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Vocational, Technical or Trade School
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Transmission was working fine. I had a broke pan bolt so I
Transmission was working fine. I had a broke pan bolt so I dropped the pan, removed the bolt, put in a new filter and gasket and now I have no overdrive or drive. It's a 4L60E … read more
Gary
Gary
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Vocational, Technical or Trade Scho
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Allison transmission jumps out of gear and I rev it a couple
Allison transmission jumps out of gear and I rev it a couple times and it drops in and stays in low gear and wont shift up....I turn off the engine and sit for a minute and it finally starts to shift.… read more
GM Tech (Cam)
GM Tech (Cam)
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Would you recommend full synth. tranny fluid with over 300k
Would you recommend full synth. tranny fluid with over 300k 08 sierra 2500 HD 4x4 6l90 trans… read more
K. Wiggins
K. Wiggins
ASE Certified Technician
Associate Degree
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From first to second at about 3500 rpm. It is a slow shift.
shits from first to second at about 3500 rpm. It is a slow shift. No slip. No hard shift. OR you can just let off the gas and it will shift fine. I can let off the gas around 2k and it will shift fine… read more
Pete
Pete
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General auto certifications
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I have a po700 po741 p2761 code for tranny had genysis on
I have a po700 po741 p2761 code for tranny had genysis on truck while driving and command to pressure said yes but wouldn't shift out all the way… read more
HDGENE
HDGENE
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I have a 2000 Chevy 2500 3/4 ton. It will shift down out of
I have a 2000 Chevy 2500 3/4 ton. It will shift down out of overdrive and won't shift back up. When this happens I can put it in neutral and coast, turn off ignition, wait until gauges clear, turn it … read more
sprinkles08
sprinkles08
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High School or GED
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Tranny makes a clang when shifting thru reverse going into
Tranny makes a clang when shifting thru reverse going into drive and I think it's stuck in 2nd gear … read more
sprinkles08
sprinkles08
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High School or GED
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On a 2011 GMC Sierra, sometimes when it shifts back from V4
on a 2011 GMC Sierra, sometimes when it shifts back from V4 to V8, I see a huge black puff of smoke from the exhaust pipe. Name is ***** ***** … read more
Chris (aka- Moose)
Chris (aka- Moose)
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GMc K2500 Sierra 4x4: I have a 2000 2500 GMC Sierra. While
I have a 2000 2500 GMC Sierra. While pulling my trailer starting out from a stop. The truck jerks right after shifting. 2nd 3rd and 4th. It also makes a horrible sound under the drivers side. rear and… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
32,839 satisfied customers
GMC Sierra 2500 HD Classic WT: I have a 2006 GMC Sierra 2500HD,
I have a 2006 GMC Sierra 2500HD, It is having trouble getting into gear, once going, no issues with shifting after that until I slow down at a stop then it will come out of gear. Sometimes the truck w… read more
GM Tech (Cam)
GM Tech (Cam)
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GMC Sierra 2500 HD SLE: I have a 1999 GMC Sierra 2500 sle and
I have a 1999 GMC Sierra 2500 sle and when I drive for more than a half hour and the transmission warms up the speedometer and rpm gauges start to stick and jump 5 to 10 mph at a time. What could be t… read more
Ron
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Transmissions Allison 1000: Is Dexron 6 compatable with Dexron
Is Dexron 6 compatable with Dexron 3 in my Allison 1000. I have a 2004 GMC Sierra 2500 HD .… read more
Gary
Gary
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Vocational, Technical or Trade Scho
408 satisfied customers
GMC Sierra 1500: 2000 Sierra got a High transmission fluid
2000 Sierra got a High transmission fluid light after driving approximately 2 hours on interstate. Stopped for half an hour. Started the truck and the light was out. But now, it's been two days, the t… read more
Chris (aka- Moose)
Chris (aka- Moose)
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Vocational, Technical or Trade School
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Allison 1000: No Tap Shift When Selecter Lever Is Placaed In
No Tap Shift When Selecter Lever Is Placaed In Range, Simply Stays In (6) Gear. This Is On A 2007 GMC Sierra Classic 2500 HD 6.6 Duramax SLT Extended Cab 4x4… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
32,839 satisfied customers
GMC Sierra 3500 Classic SLT: I have looked through a lot of
I have looked through a lot of these and can't seem to find my exact problem so here goes :) I have a 1997 GMC sierra with 454 4L80E replaced once has about 8,000 miles max and when it gets hot it shi… read more
Dave Nova
Dave Nova
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GM Sierra: I have a 04 GMC Sierra 2500 Diesel 4x4 6.6 Yesterday
I have a 04' GMC Sierra 2500 Diesel 4x4 6.6 Yesterday upon starting the truck up I had a warning come up saying something about transmission. I cant remember exactly what it said. I shut it down and s… read more
Reecekerley
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