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Old 06-22-2003, 06:39 PM
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dbenz1 dbenz1 is offline
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Join Date: Jan 2003
Location: Jersey
Posts: 163
Vacuum Modulator Question

I have a 85 190e 2.3 auto and Im about to replace the vacuum modulator valve, but before I do I have a few questions to ask.

1. Once I replace the old modulator with the new I ready to rock and roll or do I have to adjust some things?

2. How do I check how much vacuum it has with a Mityvac? Where do I connect the Mityvac up to?

3. How much vacuum is it suppose to have? How much vacuum at idle and how much when I press the gas?

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