|
May i ask a question for your question?
Diesel or gas?
If Diesel and it is a multi cyl engine i would look for a weak or dead cylinder.
You can use a temp gun at each exhaust port and read temp " with a temp gun" if there is more than say 10% diff on one cyl you may have lost an injector,or valves out of adj.
A diesel when un loaded will run fine, its not till you get to a lugging situation that it will be felt then as rpm's come up the engine will smooth back out.
Just more food for thought, as if you needed more.
Good luck.
|