Question about 1990 Buick Century

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Hi y'all, i have a 1990 pontiac safari wagon w/a 3.1 6cyl engine - same as the buick century...135kmi...recently it began to hesitate and buck when backing off the accelerator at highway speed...i had "woody" tuned up and the gas filter changed, but the problem persists and has gotten more dramatic...he has begun to idle roughly...would a 1990 have a engine diagnosis hookup...? if so would it be best to have a dealer track the problem... ? the wagon is in puerto rico and i am going to visit it soon and would love to eliminate this problem... thanks for any advice,

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YOU COULD HAVE CLOGGED FUEL INJECTORS.IDLE SPEED TOO LOW.LEAKING EGR VALVE DIAPHRAM.

Posted on Jun 01, 2010

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