X2, i had my #6cyl glow plug replaced 2 weeks ago. It was covered under the original 100k warranty but cost me $100. They also replaced the glow plug module too under my GMPP extended warranty for free. The GMPP would not cover the glow plug itself as it is considered a wear item like a spark plug. Not bad for $100 though.
This is where i got in an argument with my dealer about comparing a glow plug to a spark plug, it is definitly covered by the 100k engine warranty. When my dealer told me it was a wear item i told them the crankshaft,cam and pistons are wear items too so i guess they are not covered either. How about the injection pump? I guess we are boned with that too, that is also a wear item. A glow plug is only used only for start up and even this is intermitten due to ambient temp, a spark plug is used repetatively and is essential in the start-up and overall running condition of the engine. Basically what i am saying is a diesel engine does not require glow plugs to operate but a gas engine will not run without spark plugs.Ok I have gone to multiple dealerships now and they are saying the glowplugs are like spark plugs and considered wear items. I wish I had some dealerships like you...
Ok, so I am stuck doing this myself. I have the wires and everything disconnected from the glow plug but there is a housing around the glow plug that has an electrical connector on it. The base has something that looks like you can get a wrench on it but the valve cover makes so where a box wrench will not fit. Is there a special tool or a trick to getting it out?
Thanks!
