NHTSA Complaint #10070058 — 1987 OLDSMOBILE CALAIS

OIL PUMP/BALANCER ASSEMBLY ON 2.5L 151CI. TECH 4 (NOT SURE ON SPECIFIC YEARS) CAN CRACK FROM NORMAL WEAR, AND DESTROY CRANK SHAFT AND ENGINE. THE BALANCER ASSM. AND OIL PUMP ARE LOCATED IN OIL PAN. A SIMPLE REPLACEMENT OF OIL PUMP ASSM. WHEN LIFTER NOISE IS PRESENT, OR WHEN METAL FILINGS ARE FOUND IN OIL, WILL SAVE YOU FROM REPLACING ENGINE. THIS ASSEMBLY WILL EVENTUALLY STOP PUMPING OIL AND RUIN ENGINE. SAVE YOURSELF TIME AND MONEY AND DO-IT-YOURSELF. BUT DON'T DRIVE THE CAR WITH THESE PROBLEMS! THIS PUMP WILL RUN YOU $275 AT DEALERSHIP, BUT THIS BEATS A NEW ENGINE. I HAVE SEEN THIS TO BE THE MAIN CAUSE OF FAILURE IN HIGH MILEAGE ENGINES OF THIS KIND. GM DOESN'T COVER OR CLAIM TO KNOW ABOUT THIS PROBLEM FROM WHAT I UNDERSTAND. I HOPE THIS HELPS YOU.