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Old 10-27-2020, 03:13 PM   #1
tbrown5079
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Join Date: Feb 2007
Location: Blairsville, PA
Posts: 301
Smoke test for a vacuum leak

Working on a P0171 and P0174 and vacuum leak issue. Using a Snap-on smoke tester. Lots of smoke coming from the back of the round black tube that feeds the injectors(?) on the last cylinder on the right side and the valve cover right at that cylinder. What is my next step? Thanks in advance. Tbrown
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