1991 Buick Skylark Car spits through intake

1991 BUICK SKYLARK
140,000 MILES • 4 CYL • FWD • AUTOMATIC
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DANA KING
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Car will turn over but then it backfires through intake. We have checked timing, catalytic converter was clear, ignition module was ok, coil packs were fine, ran scanner and nothing showed. Any other ideas?
Jan 8, 2008 at 9:53 PM
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MHPAUTOS
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Hi there,

Check for a cross firing lead, if they are bundled they my be leaking voltage.

Mark (mhpautos)
Jan 8, 2008 at 10:09 PM