Quote:
Originally Posted by BioPOWER
I guessed as such, seeing as it's wintertime and they haven't been changed in all of 155,000 mi (!)
My number one fear is the fabled "606 glow plug breaking off in the head" problem.
To find out which ones are bad, can i use the OBDII system or must i remove the intake manifold to test each plug?
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If they're original you might as well change them all...you'll just be pulling the intake off again in a few months to change the next one if you don't. The most time consuming part of the job is R&R of the intake...it takes 5 minutes to R&R a plug. My tip is to do it with the engine warm to minimize the chances of breaking one. You can even run the engine with the IM off, though it will throw a CEL with a P0400 code for EGR error if you do, but you can easily reset that with an OBDII scanner once it is all back together. Once you have the old plugs out, ream the holes with the proper tool and put some anti-seize on the new ones and you'll be set for another 8 years.