halbaker
SDD Junior Member
I have a 97 psd in an E-350. it has 160k. For the past 2 winters, it smokes and runs rough on start, after warm up, runs fine and starts w/o smoke rest of day. I have replaced the glow plugs and the start relay to no avail. I think the "o" rings on the injectors may be leaking when the temps are low. ? How hare are they to replace, and should I replace the injectors at the same time?