NHTSA Complaint #10451700 — 2004 CHEVROLET IMPALA

ENGINE AND ENGINE COOLING issue reported to NHTSA

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Complaint Details

ODI Number	10451700
Vehicle	2004 CHEVROLET IMPALA
Component	ENGINE AND ENGINE COOLING
Date of Incident	April 28, 2010
Date Filed	March 14, 2012
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	NJ

Consumer Description

ROCKER ARM BOLTS CAME OUT OF HEAD DISABLING CYLINDER #1. CAUSING ENGINE TO RUN ROUGH AND COULD NOT EXCEED 15MPH. THREADS IN HEAD FAILED. THIS HAPPENED AGAIN IN DECEMBER 28, 2010 AFFECTING CYLINDERS #3 AND #5. NOW AGAIN THIS ISSUE AS OF MARCH 9, 2012 IN CYLINDER #2. IN EACH OCCURRENCE THREADS FROM HEAD WERE FOUND IN BOLT THREADS. BOLTS WERE LOOSE DISABLING CYLINDER FROM WORKING. THIS HAPPENS WITHOUT WARNING AND DUE TO CONCERN OF FURTHER DAMAGING ENGINE, CAR REQUIRES TOWING. THIS SEEMS TO BE A DEFECT IN THE MATERIALS THE HEAD WAS MADE OF. *TR

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