cruise control problem

[FourBarR]

cruise control stopped working . with engine running and switch on checked for ground at servo plug ok checked for power at pin 3 no power . checked continunity from pin 3 to stop light switch ok . continunity at terminals 5&6 of brake lite switch . anyone had this problem. ?

 

[WyoJim]

Vacuum hose

Perhaps you just changed your fuel filter and accidently pulled the vacuum hose loose under the injector pump. If this is the problem, your heater controls don't work either.

 

[Bob Cochran]

I knocked tge vacuum line off mine once and the dealer did once. But was the connection to the unit below battery on drivers side.

 

[FourBarR]

cruise control

thanks for your quick help . i forgot to mention that i also checked the vac. pressure which was 26. 5 . i think the problem is electrical since there is no voltage at the servo. has anyone had a brake switch failure? the power to the servo comes from there.