Gas Cap - Cruise Control

[waldo love]

Surprise!! When I removed my fuel tank cap to refuel my newly acquired
76 Palm Beach for the very first time ever, I found that the tank was
pressurized to the point of raising the cap against a secondary stop.
Seems to me I have the wrong cap. Comments, please.

Cruise Control - doesn't work. What is the most common failure mode for
the stock control?
Has anyone added an aftermarket electronic unit? Dana made a nice unit
earlier that was much better than the old GMC for maintaining a constant
speed, resume, etc. Comments, please.

Waldo
76 PB

 

[patrick flowers]

>
> The easy things to do are to check the connections ot the transducer
> (high on the back engine box wall near the back of the engine. There
> are vacuum hoses on this that must also be checked. if they have
> never been replaced, replace all vacuum hoses. There is also a hose
> leading to a vacuum switch at the top of the brake pedal. This also
> might need adjusting. When the brake pedal is pushed the switch
> opens to cut out the cruise control. You can take off the small
> panel just above the pedals and check this. It should be almost
> fully depressed when the brake pedal is up. Also check the bellows
> (servo) that has the chain that goes to the carb. You can put a hose
> on it and suck a vacuum to see if it moves properly. If it doesn't
> move there would be a leak in it.
>
> If these don't work you probably have a bad transducer.

Also, be sure the ground wire from the transducer is good. The
transducer is mounted to plywood and must have a good ground to
function.

Patrick
- --
Patrick Flowers
Mailtoatri63

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