Originally Posted by dieseldiehard

tune up? could it have a plugged Trap? if no trap suspect the Cat. If not those then the wastegate partially stuck open, thats what was wrong with my first '87 300Dt, paid $2550 for it. A/C worked and the interior is 8.5 on scale of 10 and exterior close to that except for the ugly US headlights, now replaced by Hella Euros an oh! it had just had a MZF transmission rebuild