C 2500 Truck 2WD V8-6.6L DSL Turbo VIN 1 (2001)
9. Lift the glow plug controller off the studs.
10. Separate the glow plug relay from the glow plug controller housing by inserting a small screwdriver between them while prying the relay assembly
outward.
11. Slide the glow plug relay outward to disengage it from the glow plug controller housing.
