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Old 03-22-2001, 09:38 AM
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Just got my car back from the mechanic and he says my problem is the vacuum going to the distributor. I'm not getting any fast idle on start up and I have to keep my foot on the gas until the car warms up enough.

Any ideas on what to check other than the lines. I had the black box that controls the three vacuum check valves (or whatever they are called) on the passenger side wall (near the carb) repaired, but I suspect these aren't functioning properly. Are they replaceable ? I don't see them listed in any parts store.



1976 230.4 W115
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Old 03-22-2001, 01:23 PM
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Join Date: Feb 2001
Posts: 84
Vacuum Check

You can check the vacuum by putting a vacuum gauge at
that port and see what the reading is.
Also, you can use Mity Vac (available at several stores) and pull vacuum on those ports and see if is holding the vacuum. Good Luck

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