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problems with duramax

D

Dennis in NC

Member
2003chevy duramax /62k dealer said glowplug modulator out.$362.oo when i picked it, up check eng light still on ,i left it . next day they say it was a glow plug ?one?? they changed one at no charge and gave me a small rebate of $53.00 . after sitting in the yard for a week i took it out , 8 mi later check eng light on again. took it back to dealer . now they say they have to change all the glow plugs at no charge to me . can anyone advise me as to what is going on?
 
(quoted from post at 20:58:43 03/22/09) 2003chevy duramax /62k dealer said glowplug modulator out.$362.oo when i picked it, up check eng light still on ,i left it . next day they say it was a glow plug ?one?? they changed one at no charge and gave me a small rebate of $53.00 . after sitting in the yard for a week i took it out , 8 mi later check eng light on again. took it back to dealer . now they say they have to change all the glow plugs at no charge to me . can anyone advise me as to what is going on?
Click to expand...

Dennis, do you mean injectors?
 
Sounds like they don't really know. There are 2 types of glow plugs used in Duramax production. They are NOT interchangeable. If I remember correctly, when I went to DMax school, if the wrong glow plug is used, it breaks off in the head. The heads have to come off to fix.
 
Unfortunately, it sounds like all-too-typical dealer service: When in doubt, take the "shotgun" approach. If you change enough stuff, sooner or later you'll get lucky and replace whatever is causing the problem.

The dealer had to rebuild the transmission in my wife's brand-new Trailblazer because the technician didn't find a broken wire the first time around.
 
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