The car turned off while I was driving and it didn't want to start again I call a mechanic and he diagnosed it for me he found the sensors I bought them but still there was no change I called another mechanic he diagnosed it he said it EGR valve and coil pack and I bought the new ones and still the car is doing the same thing the engine is shaking and the pipe at the back auxhust is making sound like "bba bba bba" like it cutting and when you start the car it start very well and when it finished reading it start shaking then it turn it self off I've tried everything please help me

My check engine light keeps coming back on with the code P0420 on my 2015 Chevy Cruze LT. I've replaced the front catalytic converter, both O2 sensors (one is aftermarket and one is GM made based on advice from a Chevy mechanic), replaced all the spark plugs, replaced coolant hoses, the coolant container, did a smoke test and found no leaks... I'm out of ideas on how to fix this code. The car drives just fine unless I ride it hard (fast accelerations and/or high speeds for long distances), then it will stutter and the check engine light will flash. If I back off and give it a few moments, the… Read complete

Please help!!! Hello I have this problem with my 2014 CHEVY CRUZE. Where everytime I press down on the as pedal, the car accelerates but NOT past a certain a certain RPMs sometimes, or! it takes forever to get there. Now there's smoke coming out of the hood, but not a lot and the car is not overheating.so it's obviously not the transmission. ( i would assume) However when I did buy the car I drove it back from California to Oregon which is approximately?. . . (1,000 miles if that matters to anyone) there was a moment where I had to stop the car because there was a stretch of freeway that had a… Read complete

I have a 2014 Chevrolet Cruze 1.8 (VIN: 1G1PA5SH9E7449244) with automatic transmission. The original engine was replaced with an F18D4 engine, but the ECU is still the original LUW type. Problem: The engine has unstable idle, especially in Drive (D) at low throttle. RPM fluctuates and there is slight vibration. Scanner readings: - Intake camshaft position: around 44° - Exhaust camshaft position: 0° at idle - When pressing accelerator slightly (about 10%), exhaust camshaft follows intake (around 45° intake / 48° exhaust) Tests performed: - Disconnecting intake VVT solenoid improves idle sig… Read complete

The car turned off while I was driving and it didn't want to start again I call a mechanic and he diagnosed it for me he found the sensors I bought them but still there was no change I called another mechanic he diagnosed it he said it EGR valve and coil pack and I bought the new ones and still the car is doing the same thing the engine is shaking and the pipe at the back auxhust is making sound like "bba bba bba" like it cutting and when you start the car it start very well and when it finished reading it start shaking then it turn it self off I've tried everything please help me