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3.8L engine runs rough and stumbles

1986 Buick Lesabre 3.8L runs rough and shakes and shudders when reaches speed.
Reply to
meg
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Needs a tune up...plugs, wires, and POSSIBLY a coil pack

Reply to
Eightupman

It may need all of those things, but I'd take it to a mechanic and ask him to diagnose before replacing parts. Could even be a fuel delivery problem..

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Reply to
Barry S.

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