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1992-1999Series 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.
Um, you do realize this thread is 12 years old right? Please don't dig up threads older than 6 months old.
Mike , not sure why you don't want to bring up old threads. This is good info. I had the same problem a few years back when I replaced my
UIM . I forgot to install both o rings and it caused this problem. Wish I had read this thread at the time, It would have saved me a lot of trouble.