If you knew what the codes were, we could tell you which bank is having the problem since the GPCM will give codes for each cylinder. Grab a multi-meter and set it to read ohms. Then pull the 9 pin connector on the inboard side of each valve cover and test the forward 2 and rear 2 pins against battery ground. A good glow plug will read between 0.1 - 2.0 ohms, usually around 0.6.
Once you figure out which side the problem is on, you can pull that valve cover and check for wiring issues, or just replace the glow plugs. Glow plugs run around $15 ea. I'd be happy to replace 4 of them for half what the dealer quoted you.:lol:
Once you figure out which side the problem is on, you can pull that valve cover and check for wiring issues, or just replace the glow plugs. Glow plugs run around $15 ea. I'd be happy to replace 4 of them for half what the dealer quoted you.:lol:
