How do i fix cruise control on 1986 el camino when it does not engage all the time. I put another servo valve on but it does not catch all the time.

SOURCE: 1986 chevrolet el camino ss front bumper

I think the beat soultion is to go to a mechanic and take advice from him.

SOURCE: 85 El camino Gages work then dont

you probobly have a wire shorting out some place ...

SOURCE: rewiring 1959 chevy el camino

Are you needing advice, links, tricks, or all of the above?
If it's advice you want:
If you are not buying an after market harness and all of the oem wiring is intact replace one wire at a time from the component all the way back to the fuse box. Its tedious but, it's a sure fire way to get it right the first time.

Secondly, I'd by a haynes manual or some other wiring diagram. Study it for at least a couple weeks or until you are completely comfortable taking on the task.

Color code your wires and label both the old and new ones with paper tape and a permanent marker so that you know what each one is for.

Last but not least, make sure that the battery is disconnected... ;o)

SOURCE: I have 1994 chevy silverado. Cruise control

first check the fuse for the cruise control

SOURCE: Cruise control not working, will not engage. No

Me too, 2007 with 33K miles. I read low brake fluid will cause the issue. I need to buy some.