Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello, my name is Bobby. Thank you for the question. Can you tell me if the check engine light comes on at all when the vehicle is running like this?
Thank you. It is odd that the light is on and they are telling you there are no codes. If you wanted to try someone else most auto parts stores will read the codes for free and you can bring them to me and we can see what is going on. It sounds to me though like you need to check the fuel pressure. Typically when the fuel pump gets weak this will occur. If you have a fuel pressure gauge you need to see if the pressure is above 55 psi. If not then that is more than likely the issue.
Then definitely check the fuel pressure. Low fuel pressure is one of the few issues that will cause the engine to run like this and not throw a code.
Sounds good. I will look for you response later.