I would check all of the vacuum actuators for leaks. One leak can cause a weird system operation problem. You can check all of them at the vacuum valve block.

You may need a manual to do this because you will have to identify all of the colors of the lines.

We sell the CD for this chasis and it has the vacuum diagrams in it.


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Donnie Drummonds
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ASE CERTIFIED MASTER AUTO TECHNICIAN
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