general problems of the 2015 Chevrolet Impala

P0442(evap small leak) using evap tool j-41413-200,pressure tested the evap system while performing system seal. Found that the evap purge solenoid is leaking. Plugged the evap purge solenoid port and found evap pressure loss not present. Reviewed tech 685 and 201 history. Parts warranty cause:failed purge solenoid failure installed new evap purge solenoid. Retested and verified system seal. Gm parts warranty 4025690 1. 2 0329/6579 original ro# 495351 58101 miles 03/14/2019 I had this car in for the same repair March 14, 2019 and again June 26, 2019. What is wrong with this car that this part goes out so often?.

The intake rocker arm oil control valve deteriorates and pieces get lodge in the cam cover passages. Causes vehicle to misfire and not shift properly. Happens while sitting idle or moving.

While driving home from work power steering lost power on bridge & could barely turn wheel had the vehicle towed to dealer when I was informed it was also leaking gas fumes.

While I was driving down an interstate in heavy traffic (rush hour) getting ready to merge onto another interstate the vehicle lunged violently jolted and lost power. At that time I was driving (cruise control off) at 60mph, the display lights on the dashboard came on stated: stability control, traction control,check engine came light on, and vehicle rapidly slowing. I was able to move to the right lane and access and exit ramp. Once that happened you can't get vehicle to move when pressing on the gas pedal. I put it in park, turned off the vehicle. I waited for a few minutes then turned on the car. The check engine light remained on. Vehicle has done this a few other times however; no codes come back when diagnosed as the check engine light turns itself off. This seems to be a major issue however; gm doesn't want to accept responsibility and fix their issue to make their vehicles safe. I am terrified of driving the vehicle and consider my experience lucky in the fact no accident happened however; I am now paying to have my car parked in a lot waiting for gm.

Third issue with loss of power. This time, started car. The car was fighting for air for a few seconds, with stabilitrak and engine light on. I shut the car off immediately. Restarted after a few seconds. The engine light remains on. Service is stating history says misfire on 2 cylinders, but no code thrown and cannot diagnose. We can guess and pay $350 for the guess, or not guess and pay $125 for the diagnostics that were ran. (!!!) what in the world. . .

I can get my car and my parking brake is engaged I have to release the parking brake, the dealership replaced it once and it still happening (bill fox in rochester, mi). The car is slow at acceleration.