FSC Forum - View Single Post - Duramax Check Engine Light/ Glow Plug Problem?

foreman00081 · 06-29-2009, 06:58 AM

i dont think the glowplugs light when the engine is already warm so that could be why the light doesnt come on. mine does the same thing but my glowplug light never stays on like your describing. my engine light does come and go though but during the colder months it was on all the time. seems that when the temps are in the 60's, 70's or above the engine light stays off a lot more which i think is because the glowplugs are not being used so they dont trigger the code.

06-29-2009, 06:58 AM	#6
foreman00081 IM MIKE D Join Date: Jun 2006 Location: Rochester, NY Age: 27 Posts: 2,055	Re: Duramax Check Engine Light/ Glow Plug Problem? i dont think the glowplugs light when the engine is already warm so that could be why the light doesnt come on. mine does the same thing but my glowplug light never stays on like your describing. my engine light does come and go though but during the colder months it was on all the time. seems that when the temps are in the 60's, 70's or above the engine light stays off a lot more which i think is because the glowplugs are not being used so they dont trigger the code. __________________ 03 GMC 2500 HD CCSB duramax, 6" full traction lift. 37/13.5/20 Toyo Open Country MT's, ATS E-Power tuner, AEM intake, Stage 3 allison 452 RWHP/755 TQ verified on superflo dyno, 7/19/08 (ATS level 10)