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10785256 2011-03-01
2008 CHEVROLET CORVETTE
ENGINE KNOCK ON 6.2 LITER ENGINE. WHEN THE VEHICLE SITS A KNOCKING OCCURS IN THE ENGINE UPON STARTUP. IT IS NOT A LIFTER KNOCK, BUT A KNOCK DEEPER IN THE ENGINE GM HAS NOTED THE PROBLEM AND MADE MULTIPLE REPAIRS (6+) CAM SHAFT CHANGED BUT NO LIFTERS. THOUGHT THIS WAS ODD AS THE WEARING SURFACES ARE NOW DISSIMILAR .GM SAID THIS IS ALL THEY AUTHORIZED. KNOCK STILL PRESENT GM THEN REMOVED UPPER END OF ENGINE. NOTED EXTREME CARBON BUILD UP ON MULTIPLE PISTONS. ONE PISTON HAD SO MUCH BUILDING APPARENTLY CLOSE TO VALVES HITTING. GM TECH ADVISED ENGINE REPLACEMENT, GM AUTHORIZED CLEANING OF PISTONS: GUESS WHAT, KNOCK STILL PRESENT THE KNOCKING IS A PISTON OR LOWER END KNOCK. SIMILAR TO WRIST PINS OR ROD BEARING CAPS OR BEARINGS. WHEN KNOCKING OCCURS ENGINE IS ROUGH AND PULSATES. TIME RANGES FROM 30 SECONDS TO COUPLE OF MINUTES AFTER MULTIPLE GM REPAIRS KNOCK IS STILL PRESENT, NOTICED ENGINE PERFORMANCE IS NOT THE SAME AND WITH LACK OF STABILITY FUEL ECONOMY HAS DROPPED
10743743 2015-07-20
2007 CHEVROLET CORVETTE
WHILE DRIVING THE CORVETTE, THE ENGINE SHUT DOWN WITH NO NOTICE. THE DASH INDICATED THE VEHICLE HAD ENTERED ACCESSORY MODE. POWER STEERING, POWER BRAKES AND ENGINE POWER WERE COMPLETELY GONE. WITHIN A FEW SECONDS, THE DIC WENT FROM 'ACCESSORY MODE' TO 'SHIFT INTO PARK'. IN ORDER TO DO SO, I HAD TO COAST TO A SAFE PLACE. ONCE I GOT TO A SPOT WHERE I COULD MOVE OFF THE ROAD, I SHIFTED TO PARK AND RESTARTED THE CAR. IT THEN DROVE ON AS USUAL, BUT THERE WAS NO CHECK ENGINE LIGHT OR OTHER INDICATOR. THIS HAPPENED ONLY ONCE THIS DAY, HOWEVER OCCURRED THREE ADDITIONAL TIMES WITHIN 10 MILES ON THE 23RD OF JULY. I CONTACTED A GM SERVICE TECHNICIAN WHO WORKS AT A CHEVROLET DEALERSHIP AND HE CHECKED FOR ANY SERVICE BULLETINS OR RECALLS. THERE WERE NONE FOR THE CORVETTE. I SEARCHED THE INTERNET, AND CORVETTE FORUM (I AM A 10 YEAR FORUM MEMBER). I FOUND NUMEROUS INSTANCES OF THE IGNITION SWITCH IN 2005-2007 CORVETTES FAILING IN THIS MANNER. I LOCATED AN IGNITION SWITCH AND REPLACED IT. THIS FIXED THE PROBLEM IN 15 MINUTES AND FOR LESS THAN $50 AT DEALER RETAIL. I KNOW FROM OTHER NHSTC RECALLS ON VEHICLES THAT IGNITION SWITCH FAILURES ARE CONSIDERED A CRITICAL AND DANGEROUS FAILURE. THE FAILURES IN THE CORVETTES SHOULD BE INCLUDED IN THESE RECALLS. IF SUCH A FAILURE OCCURRED DURING CROSSING TRAFFIC OR WHILE DRIVING IN CLOSE PROXIMITY INTERSTATE TRAFFIC, THE RESULTS COULD EASILY BE (AND MAY ALREADY HAVE BEEN) DEADLY. PLEASE CONSIDER INITIATING A RECALL, OR INCLUDING THE AFFECTED YEARS OF CORVETTE IN AN EXISTING RECALL. MY CAR IS NOW FIXED DUE TO MY ABILITY TO SEARCH FORUMS AND OTHER WEB BASED INFORMATION, HOWEVER MOST CORVETTE OWNERS ARE NOT AS INVOLVED OR AS WEB SAVVY AND COULD BE INVOLVED IN A LONG DRAWN OUT PROBLEM/DIAGNOSIS PROCESS WHICH WOULD PUT THEIR LIVES AT RISK. THANK YOU.
10682184 2014-12-01
2006 CHEVROLET CORVETTE
I STARTED THE CAR WHEN IT WAS COLD, IT BEGAN TO SQUEAL FROM THE BELTS. I GAVE IT A SMALL REV AND IT SQUEALED INTENSELY, I MEAN VERY LOUDLY! I OPENED THE HOOD AND BELTS WERE NOT MOVING. I COULD NOT MOVE THE CAR. THE HARMONIC BALANCER HAD LOST IT'S BOND. I AM JUST GLAD I WAS SITTING STILL. AT SPEED, THE STEERING WOULD HAVE BEEN LOST, IT COULD HAVE KILLED ME! I HAD THE CAR TOWED TO THE SHOP, AND IT COST ME $1000.00. NOT GOOD! I READ THAT THIS HAPPENS ALOT. BAD DESIGN FOR SURE. I SHOULD BE REIMBURSED. WHAT CAN I DO? CHEVY WON'T EVEN TALK TO ME ABOUT IT. IT'S A SHAME BECAUSE I LOVE MY CAR, BUT NOW I AM AFRAID TO DRIVE IT! *TR
10608479 2014-07-03
2006 CHEVROLET CORVETTE
THE HARMONIC DAMPER ON 2006 CORVETTE WITH LS2 ENGINE FAILED RESULTING IN POWER STEERING DRIVE BELT COMING OFF PULLEY CAUSING LOSS OF POWER STEERING. THE HIGH EFFORT REQUIRED TO STEER VEHICLE ALMOST RESULTED IN CRASH. THIS HARMONIC DAMPER ISSUE IS DOCUMENTED IN NUMEROUS INTERNET FORUMS AND IS BELIEVED TO BE A WIDESPREAD ISSUE THAT SHOULD BE RECALLED AND CORRECTED BY THE MANUFACTURER. *JS
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