Horn grounding problem- 90 Gmc Van


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Horn grounding problem- 90 Gmc Van

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blt
User

Apr 6, 2006, 6:10 PM

Post #1 of 4 (3796 views)

Horn grounding problem- 90 Gmc Van	Sign In

Is anyone familiar with how GM grounds the steering column?

My horn relay and horn ring works when I ground them to the dash. Contact with the column shaft or other metal parts on the column gets no horn sound. Basically the steering column is dead!

DanD
Veteran / Moderator
DanD profile image

Apr 7, 2006, 2:34 AM

Post #2 of 4 (3788 views)

Re: Horn grounding problem- 90 Gmc Van	Sign In

They loose their ground under the hood at the intermediate shaft going to the steering box.
I believe it’s a metal slip joint shaft with a couple of u-joints at either end. I’ve used a length of wire wrapped around the shaft so it doesn’t catch on anything while rotating and bolted to the pinch bolts at either end of the shaft.
Dan.

Canadian "EH"

blt
User

Apr 9, 2006, 7:19 PM

Post #3 of 4 (3736 views)

Re: Horn grounding problem- 90 Gmc Van	Sign In

Dan,

I ran a jumper from the gearbox connection to the column shaft today and had a ground. One friend had mentioned loosing ground thru the u-joints but I thought there had to be some metal to metal contact and was thinking the problem might be thru the turn signal . Your post verified this and that saved me disassembling the column any further. Making up a wire with two terminals will be an easy fix. Your comments were greatly appreciated.

Thanks,
Brad

DanD
Veteran / Moderator
DanD profile image

Apr 10, 2006, 2:28 AM

Post #4 of 4 (3730 views)

Re: Horn grounding problem- 90 Gmc Van	Sign In

Thanks for posting the fix.
Dan.

Canadian "EH"

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