California glow plug module troubleshooting

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Feb 7, 2008 | 04:19 PM

97-7.3dump

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California glow plug module troubleshooting

I am the lucky?? owner of a 2000 X with the california motor and all the crap to go with it. I recently got the SES light and am pulling the codes for the #2, #4, #6, and #8 glow plug fault. I went to check the GPR the old fashion way (screwdriver accross the two large post) when I found I had a MODULE and not a regulator (seliniod) like most of my PSD brethren.
Does anyone know how to tell if it is the module that is bad or did 4 GP's go bad at the same time?? (funny coincidence)
I hate to buy a GP module (at $140) if I dont have to.
Thanks for any help in advance

Feb 7, 2008 | 04:25 PM

PaysonPSD

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From: Payson, AZ

Here's a diagram to help you check the connectors.

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Feb 7, 2008 | 07:12 PM

F350-6

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From: Texas

Robin beat me to it. Everything on one bank failing sounds like a wiring or GPCM issue. Check the connectors on the wiring harness and check for power on that bank with a multi meter as soon as the key is turned on.

Feb 7, 2008 | 08:01 PM

greagin

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From: Greenwood, SC

i too have an X and i did find out that ALL Excursions are California code, not just ours. I thought i was the anomaly as well. Good luck with the GPCM and harness. let us know what you find.

Feb 7, 2008 | 08:25 PM

97-7.3dump

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Thanks guys,

The plugs omed (sp) out OK and there is power to both banks when the key is turned on soooooooooo...it appears to be pay up time

Greagn: That is news to me thanks always learnin' on FTE!!

Thanks for the help.

PS do you know where I can find one cheaper than $200
????

Feb 7, 2008 | 08:34 PM

ryaneverk2

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I wonder if it'd be possible to replace the GPCM with a plain old GPR. I suppose it'd throw the computer off, but I wonder if tuning or some sort of wiring bypass would work, to keep it from setting an SES light.