2013 Chevrolet Silverado 1500: check engine light

Filed Dec 8, 2025 · Body, Engine · 120,000 miles · MA

The contact owns a 2013 Chevrolet Silverado 1500. The contact stated that while operating the vehicle, there was an abnormal fuel odor inside the cabin of the vehicle with the check engine warning light illuminated. The vehicle was taken to the local dealer, who diagnosed that the subframe of the vehicle and the rear cross member were severely rusted, causing the fuel tank to become unsecured. The mechanic informed the contact that the vehicle was unsafe to drive. Additionally, the mechanic stated that the catalytic converter was faulty and created a fire hazard. The vehicle was not repaired. The local dealer and manufacturer were not notified of the failure. The failure mileage was 120,000. The VIN was not available.

Filed Mar 25, 2021 · Engine · 112,000 miles · MI

Truck was purchased certified pre-owned in june 2017, in june 2018 problems arose including rough idling, service engine light activation, and stabilitrak off message activation on the dash readout. General motors (gm) technical service bulletin (tsb) #10-06-01-008m was issued december, 2014 to address the repair for this problem. The issue was motor oil reaching the #1 and #7 cylinders thus fouling those two spark plugs.the truck was repaired under the extended warranty. The same symptoms appeared again in august 2020 and the chevy dealership diagnosed the same issue (mis-fire in the #7 cylinder) as described in the tsb. Since the vehicle was no longer under warranty, gm would not pay for the repair. I chose to deal with the symptoms myself which involved installing new spark plugs in the two cylinders. In mid-march of this year (2021), the symptoms appeared again and again the #1 and #7 spark plugs were fouled with motor oil. In each case, the vehicle was in motion when the symptoms presented. It's my understanding that stabilitrak is designed to help prevent accidents by giving the driver better control of the silverado. If a service stabilitrak warning appears, the silverado will no longer be assisted when a loss in lateral traction is detected. Additionally, the rough idling affects acceleration (loss of power.)

Filed Mar 9, 2021 · Transmission · 700 miles · FL

Tl* the contact owns a 2013 chevrolet silverado 1500. The contact stated while driving at various speeds, the transmission strained while shifting between gears with an abnormal sound. The contact stated that the check engine warning light was illuminated. The vehicle was taken to palm chevrolet (2300 sw college rd, ocala, fl 34471) where it was diagnosed and the contact was informed that the transmission needed to be replaced. The vehicle was not yet repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 700.

Filed Dec 6, 2020 · Engine, Transmission · 79,000 miles · NJ

Lifter ticking and lifter collapse. Stability and traction control system working improperly and flashed on and off and the truck started to hesitate and jerk. Oil consumer is excessive. This all occurred while driving on a city street without any prior problem. There were no check engine light or other 'idiot light' warnings before the lifter clicking started or the stability and traction control system acted up.

Filed Nov 2, 2020 · Transmission · 99,476 miles · CT

Transmission has bad solenoid in transmission. While yruck was in motion no signs that the vehicle had issues and dropped to limp mode while driving on the highway. Check engine came on shooting trouble code po796. Found this to be common with many other same year make and models, even told so by transmission shop. Wanted to report this incase it needs to be added to possible future recall

Filed May 1, 2020 · Engine · 30,000 miles · OK

Afm system causes cylinders 1 and 7 to foul the spark plugs actually causing the porcelain to break off in the combustion chamber. The afm is obviously an engineering failure and should have been recalled and repaired under warranty. Previous fixes do not work. Modifying the valve cover to correct a design flaw is not a cure for the real problem, which is a design flaw. #1 and #7 foul out due to the collection of carbon deposit caused from excess oil in these chambers which causes the malfunction engine light to come on and the eventual catalytic convertor failure, poor gas mileage and poor overall performance, with eventual engine failure. Lack of acceleration, slow performance. First noticed at around 30 to 50,000 miles and progressively became worse. Idle is poor due to fouled and broken plugs in these two cylinders and the ecu attempting to correct the error the balance of engine is thrown into a unbalanced condition causing the buildup of carbon deposits in the engine and causing the sensors to attempt to correct the problem. Problem is universal and not specific to a few select vehicles but to those with the afm system and was obviously a problem severe enough for gm to change to the newly developed dfm system without attempting to actually address the flawed afm problem.

Filed Apr 12, 2018 · Engine · 120,000 miles · TX

The check engine light blinks off and on,traction and stability goes off then back on ,engine runs and idles rough and sometimes shifts hard.this happens while driving and sitting still (for the lights and rough idle) not the hard shifting. While searching on internet ,found it was a common problem with the 5.3l chevy/gmc engine.