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Rostra Cruise is Working [message #162764]

Mon, 12 March 2012 15:16

WD0AFQ

Messages: 7111
Registered: November 2004
Location: Dexter, Mo.

Karma: 207

Senior Member

Thanks for the notes here and via email. I was able to trace it to a bad connection on the brake light switch. Life is good again. Was a beautiful day in SEMO today and the GMC is just about ready to roll next week.
Dan

3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer

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Re: [GMCnet] Rostra Cruise is Working [message #162765 is a reply to message #162764]

Mon, 12 March 2012 15:21

ljdavick

Messages: 3548
Registered: March 2007
Location: Fremont, CA

Karma: -3

Senior Member

Excellent news, Dan.

I get a kick out of my cruise control - even though it's completely disconnected if I push the cruise button on turn signal stalk the green tell-tale light turns on. It makes me smile. When I tap on the brakes it turns off. I smile again.

Some things on these old girls will work forever.

Larry Davick
The Mystery Machine

On Mar 12, 2012, at 1:16 PM, Dan Gregg <gregg_dan@hotmail.com> wrote:

>
>
> Thanks for the notes here and via email. I was able to trace it to a bad connection on the brake light switch. Life is good again. Was a beautiful day in SEMO today and the GMC is just about ready to roll next week.
> Dan
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy

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Re: [GMCnet] Rostra Cruise is Working [message #162767 is a reply to message #162764]

Mon, 12 March 2012 15:30

emerystora

Messages: 4442
Registered: January 2004

Karma: 13

Senior Member

On Mar 12, 2012, at 2:16 PM, Dan Gregg wrote:

>
>
> Thanks for the notes here and via email. I was able to trace it to a bad connection on the brake light switch. Life is good again. Was a beautiful day in SEMO today and the GMC is just about ready to roll next week.
> Dan
> --
>

Dan

While you are working on the Rostra you should be aware of a different connection for the brake cut out control

Most instructions call for connecting a wire to the cold side of the Brake Light Switch. If yours is
connected this way, then remove the wire from the Brake Switch &
connect it thru the original cruise control Dump switch to chassis ground. The
original cc Dump switch is located just above the Brake Switch & has a
PINK and a BROWN wire attached to it. Cut both Pink & Brown wires a few
inches from the Dump Switch connector (you may have already cut the pink
wire or removed the connector from the switch). Connect the ground wire from replacement cruise control
to the Pink wire of the connector & attach the BROWN wire to a GOOD chassis
ground. When you press on the brake peddle, the dump switch will open &
the ground is removed, which will make the cruise control drop out.

Some people have had problems with the factory suggested wiring to the cold side of the brake light switch. This is especially true when they have converted to LED tail lights.
Rewiring it this way has really helped mine to prevent unintentional cuts out of the cruise control while driving.

Emery Stora
77 Kingsley
Santa Fe, NM

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Re: [GMCnet] Rostra Cruise is Working [message #162781 is a reply to message #162765]

Mon, 12 March 2012 19:11

jhbridges

Messages: 8412
Registered: May 2011
Location: Braselton ga

Karma: -74

Senior Member

I'm just the opposite - I didn't even >know< there's a green light.� But the cruise is essential for freeway driving.� Works like a champ - rebuilt box stock actuator and custom linkage.
�
--johnny
�
'76 23' transmode Norris
'76 palm beach
�

________________________________
From: Larry Davick <ljdavick@comcast.net>
To: "gmclist@temp.gmcnet.org" <gmclist@temp.gmcnet.org>
Sent: Monday, March 12, 2012 4:21 PM
Subject: Re: [GMCnet] Rostra Cruise is Working

Excellent news, Dan.

I get a kick out of my cruise control - even though it's completely disconnected if I push the cruise button on turn signal stalk the green tell-tale light turns on. It makes me smile. When I tap on the brakes it turns off. I smile again.

Some things on these old girls will work forever.

Larry Davick
The Mystery Machine

On Mar 12, 2012, at 1:16 PM, Dan Gregg <gregg_dan@hotmail.com> wrote:

>
>
> Thanks for the notes here and via email. I was able to trace it to a bad connection on the brake light switch. Life is good again. Was a beautiful day in SEMO today and the GMC is just about ready to roll next week.
> Dan
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell

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