Chevy 6.2 Diesel Trouble! Help!
My 6.2 diesel chevy is making tons of noise, It has regular oil pressure, not losing coolant, the noise quiets done after it is warm but it is still there,the previous owner ran straight vegetable oil in it without any heaters so is this just a plugged injector? or is it a shot piston? or? I feel it alot in the clutch pedal regardless if i push it in or its out. but the whole motor just shutters and it feels like something is going to come apart. SOMEBODY PLEASE TELL WHAT IS WRONG WITH IT! THANKS FOR ANY HELP!!
1987 gmc sierra classic 6.2 diesel C code cold start. about 40f degrees