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Comments
When I am stopped and turning right onto another road if my back right drive tire starts to slip, the truck starts to jerk violently. If I am pointing straight ahead and the same thing happens the truck doesn't jolt at all. I am new with the truck stuff so I don't know if this is normal or not. I was told it might be a locking rear differential kicking in?
Help me out!
2000 Sierra
100K w/4wd
I have exactly the same issue. Truck shifts fine if you are heavy footed. If you drive normal seem to have problem with shift in 20 to 30 mph range. Been told truck is within specs. Bull. My opinion GM doesn't want to foot bill. Several notes on this issue. Just dealt with several levels at GM. Their answer take it to different dealer. Get different diagnosis. Bull. My answer is get our tax money back fom GM, let them go out of business and look at a different company who stands behind their products. They sure treated us differently when they collected the 35000 dollars for their piece of crap. Can you tell I am a little upset. I bought my truck new. It has never been neglected. Always did maintenance. Now I must live with this issue. My problem is much worse when towing. Wish I had the answer. I am going to continue to research issue.
While driving this morning, the truck seemed to stutter and wanted to stop running. The truck did continue to run, but the engine light immediately came on.
I used a Actron CP9135 diagnostic tool and received the following codes:
P0087 - Fuel Rail Pressure Too Low
P0700 - Transmission Control System Failure
Does this diagnostic system work for the duramax?
Sounds like you and I may have the same type problem. My 2002 GMC Sierra 1/2 ton has 90K miles on it and has started having a problem just recently. It seems to be fluttering in and out of OD-Torque Converter when you first start uphill. If you push the pedal down a little and let it go into gear it does ok until it reaches a higher speed. Once your speed levels off the cycle starts all over again. Sometimes it will do a small clunk which it has never done before. I wonder if this model has some type of Overdrive Solenoid that has gone bad. If anyone can help we will appreciate it
Thanks,
zoomer953
Recently my 2002 GMC automatic trans pickup started having some shifting issues on the top end from 4 th to overdrive. It feels like it is fluttering in and out of OD when it gets the slightest bit of uphill pressure. Maybe the torque converter is kicking in and out. Sometimes it actually makes a slight little clunk when it changes a little hard. I changed the trans oil and filter in but it actually made it worse which I understand can happen. Can anyone tell me if this thing has a Overdrive Solenoid or some type switch that may have gone bad? Don't need a big bill right now !!
Thanks,
zoomer953
Been to the dealership twice, they have no told me to contact GM to see if they have any information on a possible fix or whether they have seen or heard anything like this. Truck runs the balls otherwise with the exception of 35 to 50.
Today, the transmission started slipping. Feels like it moves into neutral and the engine revs increase. Fluid is on the full mark, has a nice red color and does not smell burnt.
Had a major snow storm this weekend, so I have been using 4x4 a lot, shifting from Auto, to 2H, to 4H.
Could the problem be in the transmission itself, or could it be the transfer case slipping into neutral?
Have 05 silverado 5.3 liter.... got towed from whiting Iowa to freemont nebraska @ bout 2pm today... tranny kicking in and out. boosting rpms from 1800 to 2500 everyonce in awhile.. then was like it was stuck in 3rd gear or something. went to 3000 rpms for bout 2 miles... I slowed down. to 45 mph... then tranny hot errror popped up I pulled over called AAA had her towed. Power train warranty expires Dec 29th 2009. 5yr/500000... I have 46000 on her. I have read lots of probs... weird to see ours went out bout same time same day.
update
called dealer this AM to tell them the truck is sitting outside. they notified me that they had 4 vehicles from last week with tranny probs and mine and a couple others came in over weekend.
Interesting .... i will keep u posted on what happens... let me know what you find too!
Thanks
I know on my 09, that overdrive is locked out by the computer when temps are too cold. My truck behaves just like yours does in cold weather in the morning, I have to drive until engine temp is at least 160 before truck will shift into OD.
Mine is a 2007 GMC Sierra 1500. 58,000 miles. It's got the 6.0 liter. Not sure the specifics on the transmission.
There is a contact us phone number on this link.
I had 2 Chevy transmissions crap out on me, and the third is a performance trans that I had built. You don't want to spend what I did, especially if you're still under warranty.
That stealership is being lazy. Get to the Regional GM Rep.
it now has 1338000 miles.
its been doing this since it got it brand new.
the dealer said there was no problem.
Joe
Before I put out all kinds of money I don't have for diagnostics, I thought I would post here to see if anyone can help.
I am told it could possibly be a "shift coil". I'm not too mechanically inclined so any info would be greatly appreciated.
Thanx,
Brian
thanks
michael
Last night I was backing up, same symptoms but then engine rev'd and no more reverse. Tranny temp got warmer than normal but not in red zone. I hoped it would be better this morning after cooling down overnight. No luck, still no reverse. I talked to an old GM guy at the builder show in Los Wages Nevada last week, he says it is a known issue with the 80 series tranny. Am I in need of a tranny b4 I get my first brake job ? Is the reman tranny from GM that come in a coffin the best bet? If I install it myself is the warranty still valid? I have 3 of these trucks, should I expect them all to have tranny failure at 100k.
Any thoughts, made sure they did not "pump" the fluid out of tranny like some places are doing these days as I hear that does mess with internal parts of tranny.
I would take whoever worked on it for a ride and let them hear and feel to make sure you're both on the same page.
My suggestion, if you are knowingly going to keep your truck for life like I am, is to find a highly reputable transmission builder in your area and go for it.