| Re: [GMCnet] Grounds [message #295328 is a reply to message #295326] |
Wed, 10 February 2016 00:06   |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma:
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Senior Member |
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Hal,
You can relate to how frustrating it is for our shop as these small thing
constantly slow our production in our shop.
Since we are an authorized installer and dealer for for Blue Ox, we get in
40' pushers to wire up for towing, which tie up space and we need to get
them out quickly.
Unlike the GMC, we need to get wire diagrams from the manufactures and
there are sometimes over two hour wait before we can get help.
On Tue, Feb 9, 2016 at 8:51 PM, Hal StClair
wrote:
> I've been struggling with a non operational cruise control ever since the
> diesel swap. It's about driven me nuts as everything seemed to be wired
> correctly but still no joy. I did manage to get it to engage once but I
> couldn't repeat the feat and have been àt a loss for the last month. After
> going over everything for the twentieth time I found a ground with about 3
> ohms of resistance. Not enough to kill the function of the DRAC (digital
> ratio adaptor) as the trans shifted great or to set a trouble code but
> apparently enough to disrupt the cruise signal. Testing the ground with a
> voltmeter or test light checked out good but the PCM is only working on a
> five volt signal there and 3 ohms killed it. It's really ironic that a
> ground issue was the problem as my advice is normally to be sure and first
> check your GROUNDS. Too bad I wasn't a little more diligent and taken my
> own advice, it would have saved me countless hours of frustration.
> Happy, happy now though.☺ Hal
> --
> 1977 Royale 101348,
>
> 1977 Royale 101586,
>
> 1974 Eagle Bus 45',w/slideout
>
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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