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Old 03-04-2012, 03:00 AM
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Diesel911 Diesel911 is offline
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Join Date: Sep 2007
Location: Long Beach,CA
Posts: 31,135
You need a Good Check Valve to hold the proper Vacuum. I had a Vacuum Issue and removed my Check Valve and sprayed it out with WD-40 and put it back on and it worked fine after that. And, yes my check valve was not hollow.

The Check Valve is slightly expensive. I do not see why one from a Junk Yard would not work if you take a look and see if the parts are inside and still good.
84 300D, 82 Volvo 244Gl Diesel
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