NHTSA Complaint #759426 — 2002 GMC ENVOY

ENGINE AND ENGINE COOLING:ENGINE issue reported to NHTSA

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Vehicle Towed

Complaint Details

ODI Number	759426
Vehicle	2002 GMC ENVOY
Component	ENGINE AND ENGINE COOLING:ENGINE
Date of Incident	January 19, 2002
Date Filed	March 18, 2002
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	Yes
State	LA

Consumer Description

UPON BEING INSPECTED AT THE NEAREST LOCAL DEALERSHIP, THE #6 PISTON WAS FOUND TO HAVE "SPLINTERED" A HALF MOON PIECE OFF THE TOP OF THE PISTON HEAD. THIS IN TURN "POPPED" THE CYLINDER SLEEVE RETAINING RING FROM THE TOP OF THE CYLINDER WHEN THE PISTON CAME UP. WITH THE RING REMOVED, THE CYLINDER SLEEVE ALSO ROSE OUTSIDE OF THE CYLINDER WALL AND WAS CAUGHT BY THE PISTON ON THE DOWNWARD TRAVEL. THE COMPLETE ENGINE WAS REPLACED. VEHICLE WAS IN THE SHOP FOR 20 DAYS. THE DEALER'S SHOP FOREMAN CHECKED THE RECORDS AND FOUND THAT 150 OTHER ENGINES WILL BE DIRECTLY AFFECTED WITH A POSSIBLE 180 PROBABLY AFFECTED.*AK

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