2022 Chevrolet Trailblazer Engine Problems

The studs that connect the front exhaust to the rear exhaust and muffler rusted and the exhaust fell down and crumpled up. Basically tore the exhaust off of the car when this happened.

The three bolts at the flange attaching the muffler to the upper muffler sheared off due to rust and the whole rear muffler fell off when driving the car on an interstate. Car is 3 years old and at the time had 65,000 miles. The bolts used are of poor quality, and to make matters worse, there is no exhaust hanger near this flange so the muffler is supported at the front by just this flange. Poorly designed by GM.

Purge pump failure at 33442 miles, should be included in customer satisfaction program #N242484740. Dealership denied it.

The contact owns a 2022 Chevrolet Trailblazer. The contact stated while driving approximately 35 MPH, the check engine warning light illuminated. The contact drove the vehicle to a dealer to be diagnosed and it was determined that the Evaporator Emissions Canister Pump had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact to the NHTSA Hotline to report the failure. The contact researched online and related the failure to manufacturer Special Coverage Number: N242441120 (Evaporative Emissions Purge Pump - Engine and Engine Cooling); however, the vehicle was not covered under the special program. The failure mileage was approximately 62,500.

The check engine light and other error codes are on. The vehicle would run fine and then the engine would go into 1/2 power and go slow while driving. This has happened other times too. It has been in the shop and the dealership and GM do not know what is wrong with it. It has been there for almost 2 weeks.

Bolts/studs that attach/hold exhaust system together rotted/rusted/broke after only 2 years of use causing entire exhaust system to become detached from vehicle.