2003 Silverado 2500HD 6.6 P0380 Error Code - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 1 (permalink) Old 01-27-2020, 07:42 AM Thread Starter
Join Date: Jan 2020
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2003 Silverado 2500HD 6.6 P0380 Error Code

Glow plugs have been checked and tested 4 times. Glow plug module has been replaced with two different brand new modules (engine light remains on). Just recently replaced the PCM. Truck runs fine, but engine light stays on. Cannot smog it to register it (Calif)!!!!!!!! Any suggestions?
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