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1993 GMC Vandura Cruise Control
#730458 December 07th 2017 1:58 am
Joined: Jul 2017
Posts: 11
stranger
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stranger
Joined: Jul 2017
Posts: 11
So my cruise control is not working. I have tried replacing the multi-switch to no avail. Any assistance in troubleshooting this will be greatly appreciated.

Thanks!


The Rooster
1993 GMC Vandura 2500
Re: 1993 GMC Vandura Cruise Control
TheRooster #730469 December 07th 2017 12:53 pm
Joined: Feb 2002
Posts: 522
addict
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Joined: Feb 2002
Posts: 522
Don't know for sure but a vacuum servo fixed my 90 Chevy. Got it from Rock Auto, way cheaper than the parts store. About all those Chevy GMC trucks are the same if you try a bone yard one.

Re: 1993 GMC Vandura Cruise Control
TheRooster #730473 December 07th 2017 2:50 pm
Joined: Oct 2016
Posts: 294
Likes: 6
enthusiast
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Inspect all the vacuum hose that runs from the intake manifold to the vacuum reservoir ball and hoses running to the cruise servo.

My 95 has electronic cruise servo but still uses the same hose for the hvac controls, one of the hoses was worn through.

[Linked Image]


1995 Emerald Green Chevy G20 350TBI Gladiator conversion
Re: 1993 GMC Vandura Cruise Control
TheRooster #730475 December 07th 2017 3:53 pm
Joined: Nov 2013
Posts: 2,286
Likes: 153
W
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W
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Hey Roost, Welcome to the site!

My 90 G30 also has an inop CC. The Brake fuse must be good, and there is a brake module on the Driver's side above the battery. Mine is faulty, and throwing a code. The FSM has a dizzying diagnostic array of what may be the cause.
The switch is a weak link, but you got that so....

Hope you have luck finding the fault. Good Wrenching!


BBC Blue
1990 Chevy G30 L19 7.4 EXT
Church Van, maternity division

DogVan
1988 Dodge B250
LA series 318 Wedge 5.2 TBI A500

Cabin Cruiser
'94 Dodge B350 www.xplorermotorhome.com/
Xplorer MH model 230
230 hp LA series 360 Wedge MPI 5.9 A518 OD auto

Old vans are getting pricey!
Re: 1993 GMC Vandura Cruise Control
TheRooster #730603 December 11th 2017 5:04 pm
Joined: Jul 2017
Posts: 11
stranger
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stranger
Joined: Jul 2017
Posts: 11
Thank you, guys! I will check the fuses and then the vacuum hoses and let you know what you find.


The Rooster
1993 GMC Vandura 2500

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