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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 07-20-2012, 05:05 PM   #11
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All I mean is I don't want to do plugs and wires if the problem could be the fuel pump etc
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Old 07-20-2012, 05:11 PM   #12
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Okie dokie. Are you able to check the fuel pressure with a gauge?
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Old 07-21-2012, 12:13 AM   #13
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i don't have a gauge handy but i can get my hands on one tomorrow. NEW DEVLOPEMENT! the "intermittance" is heat. it is fine when cold. when the temp gauge gets up around 210+ then it starts. the more i drive it the worse it gets, to the point where it stalls out.
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Old 07-21-2012, 05:39 AM   #14
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210 seems a tad high. Possibly a sticking thermostat, or clogged cooling system.

I have heard the ICM can get out of whack when it gets hot. Usually when its on its way out the door. Get your hands on a hair dryer and when the engine is cold point the dryer at the coil packs and see if it will do it again.
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Old 07-21-2012, 11:32 AM   #15
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Interesting! I will try that and see what happens! Does a hair dryer reach that temp? I checked the plugs and wires last night.. replaced them for the first time in what looks like a few years. Noticed much better response when cold, but same problem once it got hot. Coolant looks pretty gross so today I will flush and fill and see if that keeps the temp down. I'll post later today how its going. Thanks again!
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