Last post on Dec 07, 2013 at 6:17 PM
You are in the Chevrolet Silverado & GMC Sierra
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Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Transmission, Truck
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#241 of 1523 Trans likes limp mode
Mar 01, 2008 (7:38 pm)
Twice now my 2008 1500 has gone into a partial limp mode. first time i lost cruise gear range indicater and trans shifted like it had a bad a$$ shift kit..dealer found nothing. Second time i lost gear range indicater and afm, had cruise and shifted smooth minor loss in power, just before this second the truck seemed more peppy than usual. any one else have same issues and what your dealer say bout it.
#242 of 1523 Re: Feesable code scanner for 05 Silverado 5.3L Crew [slewrate]
Mar 02, 2008 (6:20 pm)
Anybody use/own a HP Tunner / code scanner and/or MPVI Pro feature! Anyone recommend a scanner for my 2005 5.3L Silverado? Help me here, I'm looking to buy some software or handheld unit to troubleshoot my truck! Thanks
#243 of 1523 2005 1500 transmission issues
Mar 07, 2008 (3:49 pm)
Hello, I have a 2005 1500 4x4 with a automatic transmission issue. After driving, I come to a stop and when I go to accelerate I notice that the tach revs up and the truck seems like it is in neutral. The shifter still is in drive. I have to press the four wheel drive button and then I can move forward. This is intermitent and sometimes happens when I am going in reverse. I took the truck back to the dealer and they said that they could not duplicate the problem. This is driving me crazy. Anyone have any ideas?
#244 of 1523 2001 GMC Sierra HD
Mar 13, 2008 (8:48 pm)
I have a 2001 GMC Sierra HD Auto 110,000. When im in drive it starts out smooth until i hit 10MPH and acts like im in neutral then kicks back in. I took it into a shop and was informed that the tranny fluid was black but on the bright side did not have any metal shaving in it! He told me that i need either a new tranny or a Torque Converter. I believe that it does not need a new tranny for the following. When i shift from P-R you could feel the change and acts just fine in R. But when shifting from P-D321 its so smooth you can even tell which is weird. This neutral feeling also happens when in cruise going up a hill and kicks down which will give me that neutral feeling! What is wrong is it some kind of sensor or torque converter? Note i have had the service engine light come on alot lately but was told something else.
#245 of 1523 Re: 2005 1500 transmission issues [ericg3]
Mar 14, 2008 (3:30 pm)
I have a 2005 Sierra with similar though not exact symptoms. The dealer informed me that the error codes suggest that the issue is the encoder motor, which is a device (mounted on the front differential) that shifts your front differential in and out of 4WD. It responds when you push the Auto 2WD 4WD and 4WDL buttons on your dash. My encoder motor no longer responds to my button pushing (i.e., will not shift in and out of 4WD), though up to recently it responded intermittently. An encoder motor is more than $700 installed at the dealership. I found a place online where you can get a remanufactured one with a lifetime guarantee for just $299. I have been told that it is a simple installation for anyone who can turn a wrench and plug in a lamp. I'm going to order it today.
#246 of 1523 Re: frozen allison [ftrspeedy]
Mar 14, 2008 (8:46 pm)
friend i really appricate the info except it doesn't explaine all of allison problems:new tranny/torque converter 3 new tranny lines new starter 8 new injectors and 16 new push rods. this all happened at the dealer. i didn't know a 45k truck was supposed to self destruct at 29k miles. maybe fred flintstone wasn't so stupid after all !! still driving my rental pos
#247 of 1523 Re: 1999 half-ton ext cab with stuttering transmission [rhtrans]
Mar 21, 2008 (3:50 pm)
Sorry for the delay. Thank you for the help. I'll let him know and see what he says.
#248 of 1523 Transmission doesn't shift in passing gear.
Mar 29, 2008 (5:45 pm)
When I floor the accelerator for passing gear, the transmission does not upshift when it should. The engine will wind to 4500 RPM and the transmission is in low gear or second. The transmission works fine normally.
no DTCs for the transmission.
#249 of 1523 Chevy shift problems
Mar 31, 2008 (6:28 am)
I have a 93 Silverado 204,000 on it, has always ran great except a couple of weeks ago I noticed that when I take off The trans shifts way to quick into the overdrive gear which bogs down the truck. It's fine when I manually shift progressive through the gears. Any solutions?
#250 of 1523 2500HD with 8.1L 6 speed manual trans
Mar 31, 2008 (11:08 am)
Looking for anyone else that has an 8.1 with the 6 Speed manual---Mine has developed a rattle near the base of the shifter, it only can be heard under acceleration or load. It happens in all gears dealer can not tell me if this is normal since they work on very few of these transmissions.
I am hoping maybe another owner can help.