Glow plug change [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Glow plug change


Quick06
08-31-2008, 10:46 AM
Do valve cover have to come off mto replace the glow plugs? Mine need changed truck was hard starting last winter

RPDAVID
08-31-2008, 01:37 PM
Make sure your glow plug controller is working. When the engine is cold just take a 12v test light at one of the GP's turn the key on/wait position, it should light up. DO NOT take VC off they are below the VC,5/16" socket for the connector and I think a 10 or 12 mm for the GP.......easy job!

TheBac
08-31-2008, 01:47 PM
BUT -- everything I've read here also states to be EXTREMELY careful when removing the glowplugs, because if you break one off in the head you are out of luck.

Quick06
09-01-2008, 02:17 PM
thanks for the help i now see the glow plugs where is the relay though

RPDAVID
09-01-2008, 04:06 PM
GP relay is on top of engine near firewall left/drivers side 3"x4" black box.