runs rough for few minutes after restarting when hot - 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 12-21-2007, 12:28 PM   #11
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Well, I found at least part of the problem. I used a vacuum gun to test the boost control actuator (BCA), and it didn't hold pressure so I replaced it with one that did hold pressure. There must have been a small vacuum leak for quite some time - maybe years!
The idle is smoother, but still not quite as smooth as I'd like.
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