2016 Chevrolet Colorado Fuel System Problems

I purchased a brand new 2016 chevrolet colorado duromax diesel in september of 2016. At 9,638 miles the check engine light came on for the nox sensor. The dealership replaced them but it did not fix anything.

On October 3, 2025 the driver of the 2016 Chevy Colorado we own, left our house and drove .5 miles where he stopped for a red light. The light turned green and he accelerated to make a left turn. At that time, the gas gauge dropped to "E", the truck engine turned off, and gas emptied from the gas tank.

The contact owns a 2016 Chevrolet Colorado. The contact stated while driving approximately 10 MPH and slowing down for traffic or a traffic signal, the vehicle would start to vibrate excessively. The contact stated that the check engine warning light was illuminated, and the vehicle almost stalled.

After fueling, the vehicle cranks but does not start. After sitting for approximately 10 minutes, the engine will start but idles roughly for a few more minutes. Also after long highway drives, the engine will run roughly and occasionally stall when the vehicle is stopped.

Tl* the contact owns a 2016 chevrolet colorado. The contact stated that while driving at an undisclosed speed, there was an abnormally loud sound like and explosion coming from under the hood of the vehicle. The contact coasted to the side of the roadway and had the vehicle towed to tom gill chevrolet (7830 commerce dr, florence, ky 41042) to be diagnosed.

Tl* the contact owns a 2016 chevrolet colorado. The contact stated that after the vehicle was driven and parked momentarily, the contact became aware of a fuel leak underneath the vehicle. The contact stated that while driving at approximately 45 MPH, the contact became aware of fuel vapors from the side view mirror of the vehicle.

I smell gas intermittently. Very strong while driving on highway and city streets.

The def module kit was replaced on octubre 7 and the engine light is on again the codes are p203c, p204c and p205c. These codes are related with the def fluid and my truck had the low def message on twice in the last two weeks even though the truck still has def (fluid) in the tank.

Ongoing problem with diesel fuel leak which began in october 2017. Will be returning to the dealer on 27 march 2018 for cause search of the problem and repair. Dealer confirmed one of the diesel fuel leaks during november 2017 was a leak at the fuel pump and a loose fuel line.

Yes I am filing a complaint due to my high-pressure fuel pump line and also the fuel pump. The fuel pump works but it is very dry rotted on the top therefore resulting in a lot of cracks and pressure loss. I have a 2016 Chevy Colorado four-door.

The (emissions) evap valve issue seen in 2017-2020 models that have an active recall put, is happening with my current model (2016), yet no recall has been sent forward for 2016s.