Diagnosing cruise control problems?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

fanmanj · 02-29-2012, 12:49 AM

Ok, so here's where I'm at. When I bought my '86 the cruise control diaphragm was busted and missing, also the stalk for the turn signal switch broken. So, I found the needed parts in my local junkyard. I basically pulled the ENTIRE cruise system from another '86 incase I needed extra parts. So, I've installed everything, and.... Nothing... The d@mn thing doesn't work!!!

anyone have a diagnostic procedure for testing the system? I would like to have cruise control!!!

on the brighter side,last weekend the truck got new brake pads, machined rotors, repacked wheel bearings, and I finally hooked up the vacuum ball and my HVAC controls! And all of it works!
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**allchevy58** · 02-29-2012, 01:09 AM

Check brake switch adjustment.

gchemist · 02-29-2012, 01:50 AM

I gave up fixing my 83 cruise. I added an aftermarket unit from Rostra. Worth every dime. My 83 factory manual has info. I don't think I have the pages scanned into PDF files. I'll check.

fanmanj · 02-29-2012, 01:45 PM

I have checked the brake switch and its good... Wonder how likely it is that my switch is bad?... Or maybe my VSS
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kikkegek · 04-30-2012, 01:02 PM

Quote:

Originally Posted by fanmanj

I have checked the brake switch and its good... Wonder how likely it is that my switch is bad?... Or maybe my VSS
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sent me a PM with you email and I'll email a PDF of what got from another forum member. It has everything from vacuum to wiring diagrams and diagnostics.

and look here:
you probably got this one too...or it will be close:
http://www.elcaminocentral.com/showthread.php?t=27191

fanmanj · 05-01-2012, 12:06 AM

PM SENT! Thanks!
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Keith Seymore · 05-01-2012, 09:29 AM

Quote:

Originally Posted by kikkegek

sent me a PM with you email and I'll email a PDF of what got from another forum member. It has everything from vacuum to wiring diagrams and diagnostics.

and look here:
you probably got this one too...or it will be close:
http://www.elcaminocentral.com/showthread.php?t=27191

Could you email that to me too, please?

keith.seymore@gm.com

Thanks in advance -

K

kikkegek · 05-01-2012, 09:30 AM

Quote:

Originally Posted by Keith Seymore

Could you email that to me too, please?

keith.seymore@gm.com

Thanks in advance -

K

just did! good luck!

tucsonjwt · 05-01-2012, 10:03 AM

I could use one of those pms also. thx.
My 83 cruise never worked correctly. Now it is completely dead. Everything has been replaced under the hood, and the steering column stalk is a one year only 83 unique part which is no longer available.
Used to be I could engage the cruise but it would disengage on its own unexpectedly, which would cause the gear vendor to rapidly disengage with a big clunk if I had the GV engaged with the cruise at the same time.

Keith Seymore · 05-01-2012, 12:05 PM

Quote:

Originally Posted by kikkegek

just did! good luck!

Got it; thanks very much!

K

kikkegek · 05-01-2012, 01:11 PM

Quote:

Originally Posted by tucsonjwt

I could use one of those pms also. thx.
My 83 cruise never worked correctly. Now it is completely dead. Everything has been replaced under the hood, and the steering column stalk is a one year only 83 unique part which is no longer available.
Used to be I could engage the cruise but it would disengage on its own unexpectedly, which would cause the gear vendor to rapidly disengage with a big clunk if I had the GV engaged with the cruise at the same time.

you got mail! :-)

turbosix · 05-02-2012, 01:42 AM

In my experience it could be the cruise switch. It has solid wires instead of stranded and they break. I got another cruise switch and plugged it in without running it through the column to verify it was the switch and it worked. I’ve also seen the modules down by the accelerator pedal go out. You could probably get on for next to nothing at a salvage yard. Good luck.

02-29-2012, 12:49 AM	#1
fanmanj Registered User Join Date: May 2011 Location: Thibodaux, LA Posts: 114	Diagnosing cruise control problems?? Ok, so here's where I'm at. When I bought my '86 the cruise control diaphragm was busted and missing, also the stalk for the turn signal switch broken. So, I found the needed parts in my local junkyard. I basically pulled the ENTIRE cruise system from another '86 incase I needed extra parts. So, I've installed everything, and.... Nothing... The d@mn thing doesn't work!!! anyone have a diagnostic procedure for testing the system? I would like to have cruise control!!! on the brighter side,last weekend the truck got new brake pads, machined rotors, repacked wheel bearings, and I finally hooked up the vacuum ball and my HVAC controls! And all of it works! Posted via Mobile Device Posted via Mobile Device __________________ Jay Bernard, Thibodaux, LA 1986 SWB Sierra Classic Stock roller 350/700R4 2008 Buick Enclave CXL 3.6 VVT, 6spd auto. PAINFULLY stock... (wife's ride)

02-29-2012, 01:09 AM	#2
allchevy58 Senior Member Join Date: Aug 2011 Location: Reno, Nv. Posts: 1,430	Re: Diagnosing cruise control problems?? Check brake switch adjustment. __________________ 1927 Willy's Knight 24,000 original miles, 1958 Impala 283/Powerglide, 1964 C-30 383/4 speed, 1971 Monte Carlo 350/350, 1972 GMC K2500 350/350, 1976 Chev. K10 350/350, 2006 GMC Sierra 2500HD LBZ Duramax/Allison, 2006 Chev. Silverado K3500 LBZ Duramax/Allison

02-29-2012, 01:50 AM	#3
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: Diagnosing cruise control problems?? I gave up fixing my 83 cruise. I added an aftermarket unit from Rostra. Worth every dime. My 83 factory manual has info. I don't think I have the pages scanned into PDF files. I'll check. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

02-29-2012, 01:45 PM	#4
fanmanj Registered User Join Date: May 2011 Location: Thibodaux, LA Posts: 114	Re: Diagnosing cruise control problems?? I have checked the brake switch and its good... Wonder how likely it is that my switch is bad?... Or maybe my VSS Posted via Mobile Device __________________ Jay Bernard, Thibodaux, LA 1986 SWB Sierra Classic Stock roller 350/700R4 2008 Buick Enclave CXL 3.6 VVT, 6spd auto. PAINFULLY stock... (wife's ride)

05-01-2012, 12:06 AM	#6
fanmanj Registered User Join Date: May 2011 Location: Thibodaux, LA Posts: 114	Re: Diagnosing cruise control problems?? PM SENT! Thanks! Posted via Mobile Device __________________ Jay Bernard, Thibodaux, LA 1986 SWB Sierra Classic Stock roller 350/700R4 2008 Buick Enclave CXL 3.6 VVT, 6spd auto. PAINFULLY stock... (wife's ride)

05-01-2012, 10:03 AM	#9
tucsonjwt Registered User Join Date: Jul 2007 Location: Tucson, AZ Posts: 3,188	Re: Diagnosing cruise control problems?? I could use one of those pms also. thx. My 83 cruise never worked correctly. Now it is completely dead. Everything has been replaced under the hood, and the steering column stalk is a one year only 83 unique part which is no longer available. Used to be I could engage the cruise but it would disengage on its own unexpectedly, which would cause the gear vendor to rapidly disengage with a big clunk if I had the GV engaged with the cruise at the same time.

05-02-2012, 01:42 AM	#12
turbosix Registered User Join Date: Nov 2009 Location: Lake Jackson,Texas Posts: 126	Re: Diagnosing cruise control problems?? In my experience it could be the cruise switch. It has solid wires instead of stranded and they break. I got another cruise switch and plugged it in without running it through the column to verify it was the switch and it worked. I’ve also seen the modules down by the accelerator pedal go out. You could probably get on for next to nothing at a salvage yard. Good luck.



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