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6.0 Guy Needs Help...Again

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Old Jul 21, 2008 | 12:39 PM
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6.0 Guy Needs Help...Again

My buddy has a 00 F-350 7.3,

He thinks it may have been struck by lightning. Heres what happens, when you first drive it, it makes a faint beeping noise in a series of threes and then stops. You can turn the blower motor on without the key in the ignition, also you can hear the A/C relay click under the hood. The O/D light came on and had a VSS fault code. The speedo didnt work when he drove it today. I drove it and it worked also the PCM see's VSS. I watched it through the scan tool. The GEM module had 15 codes in it. I am not so sure that it was struck buy lightning as I worked on a car that was and it had worse symptoms but I am not ruling it out.
Hopefully its just the GEM module but I am lost on this one.

Thanks in Advance,

Sarge
 
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Old Jul 21, 2008 | 01:56 PM
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I'll go along with the GEM module diagnosis.
 
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Old Jul 21, 2008 | 03:28 PM
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Originally Posted by clux
I'll go along with the GEM module diagnosis.
x2 here...
 
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Old Jul 21, 2008 | 04:11 PM
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Where is the GEM Module located on the Super Duty

Thanks Again

Sarge
 
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Old Jul 21, 2008 | 05:20 PM
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It's in the passenger compartment, on the firewall behind the dash.
 
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Old Jul 21, 2008 | 05:26 PM
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Sarge,

Here's a link to a post by Chris (F350-6). Has links to Work Shop Manuals by year.
 
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Old Jul 28, 2008 | 04:25 PM
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Well,

I am finally going to get to replace that GEM tomarrow. I am not convinced its going to fix it but we shall see. I guess this is a common problem. Does anyone know if it needs to be reprogrammed on a 2000 or just the later ones. The parts guy said no but he wasnt that convincing. If it does is it something that is available ona genaric scan tool, Mac mentor is what i have, or is it dealer only software. The parts guy asked me if it was ESOF, had power windows, and RKE, etc, etc,etc. Thanks a million and hopefully this fixes it.

Sarge
 
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