1991 Pontiac Grand Am back firing in enjector bowl

1991 PONTIAC GRAND AM
90,000 MILES • 4 CYL • 2WD • AUTOMATIC
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HYU
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wene cranking back fires in enjector bowl after cranking a few times engine starts and runs good does not smoke. replaced and cheked timing chain for proper markes could it have a bad crank sensor
Nov 30, 2009 at 9:19 PM
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