Buick Lesabre, Park Avenue +1 more: Engine

Affects Buick Lesabre, Park Avenue, Regal · 1996–1997 — about 14K vehicles.

The hazard

THESE VEHICLES MAY EXHIBIT A BACKFIRE DURING ENGINE STARTING THAT CAN CAUSE BREAKAGE OF THE UPPER INTAKE MANIFOLD. THIS CAN CAUSE A NO-START CONDITION AND POSSIBLY AN ENGINE COMPARTMENT FIRE. ALSO, IF A PERSON WAS IN THE VICINITY OF THE INTAKE MANIFOLD WHEN THE HOOD WAS OPEN, AND THIS BACKFIRE CONDITION OCCURRED, IT COULD RESULT IN PERSONAL INJURY. CORRECTION: THE PCM (POWERTRAIN CONTROL MODULE) WILL BE REFLASHED WITH NEW PROGRAMMING SOFTWARE.

What to do

Contact your dealer; the remedy details were not included in the filing.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational