15 problems related to automatic transmission have been reported for the 2001 Chevrolet Silverado. The most recently reported issues are listed below.
The contact owns a 2001 Chevrolet Silverado. While driving 30 mph, the vehicle lost speed and the gears began to spin. The vehicle came to a complete stop. The contact attempted to switch gears, but the vehicle failed to move. The transmission was diagnosed as the cause of failure and was replaced. The contact stated that a transmission should not fail at 40,000 miles. The current mileage was 42,692 and failure mileage was 40,000.
Since ownership of vehicle, reverse has not worked properly. Complete failure 9/28. Vehicle when put into reverse, does not move. Vehicle has been to the dealer 4 times. I am being told they will not cover the fix. Vehicle has 52,000 miles on it.
[5] major problems Chevrolet Silverado z71 extended cab 4 door lt 350cu. In 5. 7 liter. This truck came with the tow haul equip. And was sold with improper tires for the use described. Tires where firestone 245/75-16. Steeltex a/t #108/104r m/s new vehicle sticker also. To me. This fraud #2) next failure: lost all braking going down a slight grade. Brake pedal went flat to the floor. I released pressure. Pushed again. Down to the floor but with pulsing felt through pedal. Released again same . . . Used both legs on one brake pedal other on parking brake. Engine shaking during this. Approx. Stopping distance 600-700-yards. ! informed dealer when next service due at 15. 000mi. No comment no issue #3) next failure: gm crap exhaust system manifold cracked in two@17. 156mi. And converter blockage due to breakage of manifold fragments. #4) next failure: same as #2 above. Breaking loss for brief 90-200 seconds. Enough time to be seriously injured or cause one. 17,982. 47 mi #5) 20 mi round trip on way home on freeway sudden decrease in speed and the rpm gauge is at 6,000 rpm it does not go any higher. Then it grabbed and sped way up. Let off gas and sling shot type erratic speeds with same pressure on gas next pedal. Same damn time. I will never reach that space in time or miles before this unreliable defect laiden poorly designed piece of shody merchandise kills me or someone else. The service dept wants me to authorize take down of transmission and dissemble the unit and said needed to notify gm. Also they mentioned 66790. Is this a form or a charge?. I called them back only to get a recording . I said (my exact words) I authorize gm/ dealer to repair this vehicle now at their cost and deliver it ASAP. Come Monday this will be 4 days no truck. This will force me to use very harsh civil complaints for these interruptions.
When putting vehicle into any gear it will move no where. This is an intermittent problem. Contacted dealer.
Truck sat idle for 4 days. Started truck and tried to put it into reverse several times. Transmission wouldn't shift. Had to start truck several times before shifting took place. Chevrolet dealer says allison is aware of the problem and attempting to find a fix. Allison has not advised us or the dealer of this problem!.
The problem was brought to the attention of the dealer. GMC responded that there were not enough complaints and would not fix the problem. No safety defect mentioned.
On a slight incline vehicle will roll backward and hesitate when accelerating. Dealer has been notified, and said that this was normal operation for this particular transmission. Consumer stated, vehicle will hesitate on flat ground. When trying to get on hwy or exits this can be very dangerous.
Transmission shifts from 5th to 3rd, over revving the engine, also it will for no reason shift all the way down to second gear at interstate speeds nearly causing an accident.
When shifting from first to second and second to third, feels like going over bumps. Took to dealer, and they replaced transmission, but problem got worse. Consumer can hardly shift. .
The problem is an intermittant neutral condition. This happens when stopped at a light for a few minutes. After releasing the brakes and applying the accelerator the engine revs, but the vehicle does not move. Then all of a sudden the transmission engages with a large bang and the rear tires break traction. This has happened six times. The dealer says there is no problem. The manufacture says they have had many calls for the same problem, however they don't have a fix. On the internet, there are several people that have had this problem and gm has fixed it with a new valve body for the transmission, as well as, a new front pump assembly. I feel that this is unsafe and should be fixed. Thank you.
Automatic transmission violently jumps while changing from first to second gears. Dealership has examined vehicle, but has not informed consumer as to cause or reason of problem.
Vehicle accelerates from a stop, at times, vehicle jumps from drive into neutral. This problem occurs when the vehicle is cold. Dealer has been contacted. Consumer states that can be dangerous in traffic or with a load on hills.
The problem is when coming to a stop (under braking) if you don't come to a complete and total stop and you decide to switch back to the accelerator, the truck free revs for about half a second and then dumps the transmission in gear. While this has yet to cause me any dangerous problems, I believe it very well could in the rain or ice/snow. If you're not prepared for it, sometimes it hits hard enough that for a moment you're somewhat disoriented, representing a dangerous situation if there's other traffic around.
While driving at high speeds vehicle stalled. Consumer was able to restart vehicle, and drove it to dealer for inspection. However, mechanic could not duplicate or resolve the problem.
While driving and without warning automatic transmission is shifting gears, stalling results, and vehicle stops.