2nd Gen Non-Engine/Transmission Cruise control servo diaphram test

[SMalafy]

Is there any way to test the servo for a diaphram leaking ? I have tested everything else and I can not figure out why I have no cruise. Vaccum line is ok and I have vaccum. Servo tests out ok with ohm meter and stop light switch is ok.

Don't know what else could be wrong except for a bad diaphram !

 

[GAmes]

I decided the diaphram was shot by putting suction on the hose connector. It was easy to draw air thru it, and was in fact defective. Have you changed over to Optima red tops yet?

 

[bmoeller]

My servo has a hole in it big enough stick my thumb into it.



EDIT: Not anymore. Put new one on today. First time it has worked since I bought the truck a little over 2yrs. ago.

 

[SMalafy]

What did you use to apply suction. Did you try using the vaccum line as a straw ???

 

[GAmes]

Originally posted by SMalafy

What did you use to apply suction. Did you try using the vaccum line as a straw ???

I had the servo off the truck and used a piece of rubber tubing like a straw, but if yours is still in the truck I'm sure using the vacuum tube will work.