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Cruise Control

Joined
Nov 4, 2000
Messages
946
Location
Scottsville, Kentucky
Corvette
08 Jetstream Blue Z51 coupe
Last summer I engaged the cruise control on the '81 a couple of times, and it worked fine. Yesterday I tried several times to get it to work with no luck.:( I see very little trouble shooting help in the Haynes manual. I've checked the vacuum lines and wiring. I did change the carb, re-adjusted the cruise cable. The wife did pump the brake pedal for an hour or so when I flushed out the old nasty brake fluid. Could something under the dash have given up? Any trouble shooting tips would be greatly appreciated. :confused
 

GiDvEtTe84

Well-known member
Joined
May 8, 2001
Messages
67
Location
Maurice, LA
Corvette
1984 Cross-fire Corvette Coupe
Hate to say this....May be time for a new unit?? :( Sometimes the diaphrams inside dont hold the ait anymore.
 

Tom Bryant

Well-known member
Administrator
Joined
Nov 9, 2000
Messages
7,268
Location
Edgerton, Ohio, United States
Corvette
1959 black 270hp (9/2/69) 1981 Beige L81(10/20/80)
Dale,

Uhh, did you check the fuse?

Tom
 
B

Bev

Guest
it happened to us, too

Dale,
Sorry to say but we had the same problem with our 81.:( We ended up gettinig a new one istalled. Our manchenic said he thought that a wire in the handle going to the controls was bad but couldn't tell unless he took it apart. We settled for a new unit.;) Now we can cruise on cruise.:J

Bev.
yellow 81
copr/princess
 

Ken

Gone but not forgotten
Joined
Jan 30, 2001
Messages
8,236
Location
Hermosa Beach, CA
Corvette
1987 Z51 Silver Coupe
Hey Dale, one of the Corvette magazines had an article on this subject sometime in the past year, but I'll be DARNED if I can find it! :gap
 
M

Moffitt

Guest
Check the clutch and brake switches (they are always coming loose). Push them towards the pedals, then pull back on the pedal. The switches are a friction fit into the sleeves and when you pull back on the pedal it will adjust the switches. You can also check for power with a test light at the transducer, one wire should be dim, the other should flash momentarily when the set switch is pressed. Make these checks and if no success give me an email. I used to fix alot of these when I was a GM tech.
 
Joined
Nov 4, 2000
Messages
946
Location
Scottsville, Kentucky
Corvette
08 Jetstream Blue Z51 coupe
Fixed it!!!

Hey Tom, would a power plant guy NOT check a fuse:L :L
Thanks everyone for your input. I found a vacuum line to the regulator that I mistakenly connected to the intake manifold instead of the carb. Re-installed correctly and what do ya know....
 

Tom Bryant

Well-known member
Administrator
Joined
Nov 9, 2000
Messages
7,268
Location
Edgerton, Ohio, United States
Corvette
1959 black 270hp (9/2/69) 1981 Beige L81(10/20/80)
fuse

Sorry Dale. I just couldn't resist it. :L :L

Tom:grinshot
 
W

white81

Guest
Same Problem

I am having the same problem and will try the things that you guys came up with.
Chris
 

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