Alright, I've been tryin to check into the glow plugs, The only problem is, is that I CANNOT GET TO THEM. The intake manifold is definitely in the way.

I'm willing to take it off to get the job done, but my only question is if I need to replace the gasket every time I take it off or can I re-use it. It's pretty much bran new. Replaced it just a couple hundred miles ago.

Answer
 

Disconnect the glow plug harness from the relay.

Use the glow plug harness pins, and ohm to the engine block.

You will be reading resistance through the glow plug.

.

ah, well in the end I was able to get to the bad glow plug by removing the last 3 injector lines and using some magic and witchcraft. Glow number 4 was bad. The dum dum light gave it away. (or whatever its called).

Thanks for all the info guys! you really helped out a lot!

Smart,Smart LIGHT
 

"Pre-Glow Indicator Bulb."

Congratulations!


If you've not already,this should be your "Next" project:

http://www.peachparts.com/shopforum/diesel-discussion/212097-wastegate-actuator-swap-om602-962-a.html