2008 Chevrolet Silverado 2500 transmission problems

Filed May 28, 2020 · Transmission · 212,000 miles · NV

This is a 2008 chevy silverado hd z71 4x4 well taken care of. And the transmission goes into limp mode on fast stops. This is extremely dangerous due to the fact that if a load is on board and it goes into limp mode this could be dangerous for all behind the vehicle and around. Which could be a threat to all unexpectedly causing undue harm to other while in control of this vehicle. And vehicle sends out a code.

Filed Apr 8, 2019 · Transmission · 130,000 miles · MA

Motor :6.6 l deisel transmission allison 1000 rear engine cover cracked vehicle not retaining coolant (part number 12622693) trucks coolant low level indicator came on ( in motion on the highway) could cause motor to overheat and lock up while driving if defect was undisclosed and not known about - I had a deisel technician find the problem and had to have the entire transmission pulled out in order for the leak to be found . Pictures attached - the defect was not visible from the outside looking at the drivetrain

Filed Jan 18, 2018 · Transmission · 1 miles · WA

My truck has 69,755 miles when the transmission went into protection mode. Jerry smith garage of anacortes wa. Found loss of prime of fluid due to poss sticking lube regulator valve in pump cover. This was at cost of $5849.87 I feel that this truck a 2500 heavy duty trany should last longer than 69,755 miles. It was being driven on the street

Filed Nov 8, 2016 · Transmission · 98,000 miles · VA · crash · 1 injury

Tl* the contact owns a 2008 chevrolet silverado 2500. While the vehicle was parked in the driveway, it rolled backwards and crashed into a tree. The contact was caught between the driver's door and the running board. The contact sustained injuries to the knees and deep lacerations to the body and head, which required medical attention. A police report was filed and the vehicle was towed. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 98,000. The VIN was not available.

Filed Jul 27, 2016 · Transmission · WA

After truck sits for a week or more, once started and put in reverse it will back out of garage very slowly when given fuel even at 3000rpm. The garage says to let it warm up should not have to do this. I think trans. Fluid oil is draining down and has to fill back up. Should not have to do this.

Filed Apr 22, 2016 · Fuel system, Transmission · 250,000 miles · MI

Vehicle has been stalling and losing trailer brakes. There is a recall on this but this particular truck did not fall in the recall. The trailer brake module on the frame rail of the truck was full of water. I has been replaced and all is good now. Could have been a very bad situation but was able to prevent an accident.

Filed Mar 16, 2015 · Transmission · 40,800 miles · MD

Transmission lines and other areas are leaking bad. They are leaking from all three hoses at the factory crimp.

Filed Dec 19, 2014 · Fuel system, Transmission · 61,500 miles · WA

I have replaced transmission cooler lines twice (2 times), since purchasing this truck with 59k miles on it. Both times with AC delco parts. Both times the transmission cooler lines leaked, not an installation problem. 11/21/13- I first noticed it when driving at 25 MPH picking up my kids from school, and I had transmission fluid spraying out from underneath my truck, causing it to smoke/smolder on my exhaust pipe. (transmission fluid is flammable). The crimp has separated from the hose. This is the first time I replaced with genuine gm parts. 1/16-14- 2nd time was during the winter when the truck was warming up in the drive way and yet again the crimp was causing a leak, which dumped about a gallon of fluid on my driveway. (again transmission fluid is flammable) I replaced the lines one more time and I'm about fed up with the lack of help gm is giving. The current set of cooler lines on the truck are just now starting to drip so its only a matter of time before they give out again. The truck has very low miles and I meticulously maintained, this is a known gm problem on more than 1 model of vehicle and I am unsure why gm will not extend a warranty to these failed parts. My local gm service dept. Has refused to help me in any way, even though I have bought gm part every time. When will gm face the facts before one of these catches fire and someone dies????

Filed Sep 14, 2014 · Transmission · 66,958 miles · NY

I took my truck to a repair facility, to have a leak repaired, at the rear of the transfer case. The mechanic thought the rear seal was leaking, so he repaired that. Once the rear seal repair was made, the mechanic discovered there was still some leaking of transmission fluid. Upon closer inspection, he found a hairline stress crack in the rear section of transfer case housing. The crack first ran perpendicular, then made a turn left (horizontal), toward top of where drive shaft enters. On sept. 03, 2014, a local chevrolet dealer took the order, for part no. 19125656cv, then on sept. 08th that same dealer advised the mechanic working on my truck that the part was on national back order, with no estimated date of when it would be available. I was almost forced to purchase a brand new complete transfer case assembly, for over $1,500.00, just to get my truck back on the road, again. Common sense tells me, chevy must be having problems, with an awful lot of truck transfer case rear housing sections, in order to run completely out of spare parts; nationwide. I feel this leak could be a safety hazard, because once the transmission fluid runs out, the gears in the transfer case would probably seize up, causing the driver to lose control and crash. I feel a recall should be issued, for this problem and chevrolet should be forced to increase production of the repair part needed and have a supply of these parts on hand (nationwide). Fortunately for me, my mechanic was able to find the repair part I needed in a junk yard.

Filed Feb 5, 2013 · Transmission · 28,537 miles · VA

Transmission fluid leaking from crimps where metal ends are attached to rubber hoses.