Problems With cruise control

Pete dually

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Feb 2, 2020
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Location
Belgium
First Name
Peter
Truck Year
1980
Truck Model
C35 crewcab 3+3 sierra classic / camper special / dually
Engine Size
454cui
So I got a problem with my 1980 C3500's cruis control.
When i touch the knob on the lever when in neutral or in gear it goes to full throttle instantly.
Anyway when pushing the brake pedal the cruise control stops like it should.
Any ideas on what could be wrong :rolleyes::chillpill: or anybody also had this problem...
 

Goldie Driver

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Location
Houston, Texas
First Name
Britt
Truck Year
1980
Truck Model
GMC K1500 Suburban
Engine Size
350
I dont recall ever playing with the cruise while not driving, so most interesting!

A guess : the cruise module under the hood.

It uses cables to sense the set speed, and typically they dont come on under 30 or so MPH.

I bought a reman off Ebay a few years back that solved some of my issues with the cruise as well as a lot of my speedo issues for around 135 bux.

One of the members here told me about them - I will need to search for the name.
 

Big Chip

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Location
Michigan
First Name
Kevin
Truck Year
1979
Truck Model
C35
Engine Size
454
 

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