GM Service Manual Online
For 1990-2009 cars only

Unable To Locate Block Heater Cord / Plug - keywords cold find hard heat location low missing start temperature

Subject:Unable To Locate Block Heater Cord/Plug

Models:2007 Chevrolet Silverado
2007 GMC Sierra
With 6.6L LMM Diesel Engine



The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

Some owners may comment that they are unable to locate the block heater cord/plug.

Recommendation/Instructions:

The block heater cord/plug is located on the right side of the engine between and below the right battery and fuel filter.


Object Number: 1992415  Size: SH

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.