HOW DO YOU FIND A FAULTY VACUUM PUMP?

[Alex F.]

1993 Chevrolet Suburban (Wagon)

The cruise control is not working, Fuzzes are fine, and i Believe it to be a bad vacuum pump how do i find which one it is?

Topic

[Bill]

Is it a diesel or gas?

[Alex F.]

Its Gas—Sorry about that

[Bill]

That’s OK. I don’t believe there is a vacuum pump on that Suburban. It gets it’s vacuum supply from the engine intake manifold. The first thing to do is trace the hoses from the cruise unit all the way to the vacuum source and check for damage or a disconnection. I will check to see if i can find more info for you in the meantime.

[Alex F.]

Thanks—Ya, it took me a good while to figure that out—i did find a procedure to diagnose the sorce of the problem—i dindt hve what you suggested but that really makes sence ill be sure to chek it out…THANK YOU AGAIN!

[Author]

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