93 SSEI Overheating and Rough starting - 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 07-12-2006, 09:36 PM   #11
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Forgot, sorry!

The BCS (Boost control solenoid, I assume) might be something to test.

When idling, the boost gauge needle moves up and down from way bottom to about 1/4 of the way up.

That normal?
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Old 07-12-2006, 10:08 PM   #12
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You lost me on the condition of the plugs. 1st you said you've been cleaning them now you're saying they're fine. Can you remove the front three & show us a picture.

Gas mileage is usually given as miles per gallon not miles per tank. It sounds like you're getting less than 8 mpg but we don't know how much gas is being put in every 120 miles.
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Old 07-12-2006, 10:22 PM   #13
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I'll take pictures of the plugs tonight and post them.

Frankly, I don't remember how many gallons the tank holds. But I'll check it out and convert as well.

I'll also check the coils tonight.

Thank you all for helping out!
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