My daughter has a 03 Envoy, V8 5.3L. SIL ran diagnostic this weekend. Code P0300 "Random Misfire". Looked up causes, could be anything from spark plug and wires, CAM sensor, vacuum leak, etc...
He has already checked spark, everything appears good there, throttle body new a couple of years ago..
Car starts, runs extremely rough and stalls out.
Anyone have the same issues? Suggestions on what to check? Any "common problem" Trying to avoid tow charges and garage fees.
Thank you
He has already checked spark, everything appears good there, throttle body new a couple of years ago..
Car starts, runs extremely rough and stalls out.
Anyone have the same issues? Suggestions on what to check? Any "common problem" Trying to avoid tow charges and garage fees.
Thank you