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.

need help asap. coolant leak in heads

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Old 09-18-2006, 12:35 AM
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thanx again for ur help everyone. i put new platinum plugs in it and cleaned the o2 sensor and changed the oil. runs like new again.
Old 09-18-2006, 12:47 AM
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Please tell me they weren't Bosch Platinums?

They typically begin to erode/foul within 30-90 days here. Just be prepared if that'* what you got.
Old 09-20-2006, 09:16 AM
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yep they were bosch plugs lol.
Old 09-20-2006, 12:27 PM
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Well, just keep an eye on things and if you begin having problems, check those plugs first, lol.

On the other hand, you may be one of the lucky few here who seem to be doing OK so far with their Bosch plugs. Next time just use AC Delco or NGK TR55s.
Old 09-23-2006, 10:12 AM
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My 96 ate the Bosch plugs on just 9k miles. Can you still return them?
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