Car has about 80k miles on it.Six cyl. 3800 engine. Usually happens under moderate acceleration. If I let off on gas motor smooths out, If I punch the gas (after the stumble starts) it sputters and farts (backfire through intake?) If I drop it down into a lower gear, making rpms go well over 2000 I get power and it runs ok. Otherwise car runs good.
'93 buick lesabre loses power/stumbles at 2000 rpm.?
- Thread starter Murf
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