Cruise control input needed - The 1947 - Present Chevrolet & GMC Truck Message Board Network

56weav · 12-14-2017, 08:57 PM

Like with all older vehicles some days go backwards.
I had fixed all the vacuum leaks and adjustments in and on the cruise control unit ,it was working well and was very useable . Yesterday I was driving it down the interstate and hit the speed advance. Instead of increasing the speed it shut off and now doesn’t work or engage what so ever
The fuse is fine . It would appear the multi switch on the blinker stalk has failed
Any other thoughts ?

**TKCR** · 12-14-2017, 09:20 PM

Did the rod pop off the side of the carburetor?

Wwes · 12-14-2017, 10:57 PM

What year are we talking about? There is multiple things that could cause this, such as stalk, cruise control servo, even the throttle linkage shaft.

56weav · 12-15-2017, 06:57 AM

My bad, I keep forgetting to put the year of the truck. 1986 gmc 305 v8 the failure occurred when I pushed the accelerator button prior to this the cruise would not hold speed going up an incline. It would lose speed then if I pushed the accelerator just a little it would return to its setting.
When I first fixed all the vacuum leaks It worked
Thank you
David

12-14-2017, 08:57 PM	#1
56weav Registered User Join Date: Oct 2016 Location: Lincoln illinois Posts: 34	Cruise control input needed Like with all older vehicles some days go backwards. I had fixed all the vacuum leaks and adjustments in and on the cruise control unit ,it was working well and was very useable . Yesterday I was driving it down the interstate and hit the speed advance. Instead of increasing the speed it shut off and now doesn’t work or engage what so ever The fuse is fine . It would appear the multi switch on the blinker stalk has failed Any other thoughts ?

12-14-2017, 09:20 PM	#2
TKCR Senior Member Join Date: Oct 2014 Location: Ohio Posts: 6,857	Re: Cruise control input needed Did the rod pop off the side of the carburetor? __________________ FB Page for my Seats Belts https://www.facebook.com/73-87-Chevy...9439407476735/ Restoring Seatbelts: http://67-72chevytrucks.com/vboard/s...d.php?t=809750 SOLD My 86 Build:http://67-72chevytrucks.com/vboard/s...d.php?t=654972 Past Restored Bench Seats:http://67-72chevytrucks.com/vboard/s...d.php?t=715398 PayPal link to pay for your items: https://www.paypal.me/TKCR

12-14-2017, 10:57 PM	#3
Wwes Registered User Join Date: Apr 2017 Location: FL Posts: 144	Re: Cruise control input needed What year are we talking about? There is multiple things that could cause this, such as stalk, cruise control servo, even the throttle linkage shaft.

12-15-2017, 06:57 AM	#4
56weav Registered User Join Date: Oct 2016 Location: Lincoln illinois Posts: 34	Re: Cruise control input needed My bad, I keep forgetting to put the year of the truck. 1986 gmc 305 v8 the failure occurred when I pushed the accelerator button prior to this the cruise would not hold speed going up an incline. It would lose speed then if I pushed the accelerator just a little it would return to its setting. When I first fixed all the vacuum leaks It worked Thank you David



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