[b]1997 crank case vacuum / won't stay running[/b] - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 02-23-2007, 04:37 PM   #11
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For all who might run into problems like this,
DTC P0171 ended up being the EVAP Purge Valve, by-passed it with vacuum lines I got from a 96 in the junk yard
and like I said the extreme vacuum was due to the missing O-ring. I knew I had extra parts when I did the UIM
and the fuel pump did crap out. good news when I bought it they had lifetime warranty, now the don't, bad part I had to drop the tank.. oh well all problems solved for now!!
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Old 02-23-2007, 04:55 PM   #12
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Chompy...how did you diagnose the lean bank code back to the evap being bad.
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