2006 Hummer H3

APPROXIMATELY AT 150,000 MILES, WHILE MAKING A DELIVERY AT THE COUNTY DISPOSAL FACILITY, WHILE MOVING SLOWLY AND PARKING AT EACH STATION, THE ENGINE STARTED CUTTING OFF AND IDLING VERY POORLY, SLIGHTLY KNOCKING. I MADE IT HOME CHECKED THE OIL' WHICH READ LOW, SO I CHANGED THE OIL, OVER 5 QUARTS REMOVED, IT ONLY REQUIRES 6 QTS MAX, AND I REPLACED IT WITH 5 QUARTS OF FULL SYNTHETIC, WITH BG CLEANERS. INITIALLY IT STARTED, IDLED, AND RAN BETTER BUT AFTER 30 MINUTES THE ENGINE KNOCKS RESUMED. THE NEXT DAY I TOOK IT TO MY MECHANIC, HE ASSESSED AND DIAGNOSED IT, CONCLUDING THAT THE ENGINE WAS BAD AND NEEDED REPLACING. I HAD IT THAT CONFIRMED WITH ANOTHER MECHANIC. WENT ON THE HUMMER FORUM BLOGS AND READ MANY SIMILAR COMPLAINTS ABOUT THE ENGINE AND PISTONS WARPING OR DYING BETWEEN 75K-150K. MOST BLAMING GM FOR PUTTING IN DEFECTIVE PISTONS OR AND UNDERSIZED ENGINE 3.5L IN A HEAVY ALL 4 WHEEL DRIVE VEHICLE? NOT SURE WHERE TO GO FROM HERE, A USED OR REFURBISHED ENGINE IS $2500-$3500, WITH INSTALLATION ANOTHER$3000-$3500? I'M NOT SURE IF IT'S WORTH THE STEEP INVESTMENT?

I HAVE OWNED MY 2006 HUMMER H3 FOR THE PAST 8 YEARS AND ABOUT 5 MONTHS AGO IT BEGAN NOT WANTING TO START. NOT WANTING TO START NO MATTER WHAT I DO AND THEN STARTING LIKE NOTHING WAS EVER WRONG AFTER 10 MINUTES. I'M TIRED OF THIS HAPPENING! MY H3 JUST TURNED 50K MILES AND I LIVE IN FLORIDA WHERE THE WEATHER IS WARM... THIS IS DEFINITELY A SAFETY ISSUE. AS A RETIRED FLORIDA POLICE OFFICER I KNOW THIS TO BE TRUE... THIS IS A SAFETY ISSUE! YOU SHOULD BE ABLE TO GET INSIDE YOUR VEHICLE AND START IT UP AND LEAVE AT YOUR CONVENIENCE AND NOT WHEN YOUR VEHICLE DECIDES TO... THERE ARE SO MANY COMPLAINTS ABOUT THIS SAME PROBLEM WITH HUMMER H3'S I DON'T UNDERSTAND HOW THERE HASN'T BEEN A RECALL ON THIS ISSUE... GO TO CARGURUS.COM AND READ SOME FOR YOURSELVES... HAVING TO WORRY ABOUT MY WIFE BEING STUCK SOMEWHERE ALONE BECAUSE THE VEHICLE WILL NOT START IS EXTREMELY FRUSTRATING... I PRAY NOTHING HAPPENS TO HER... THIS ISSUE NEEDS TO BE ADDRESSED. REALLY HOPE TO GET THIS PROBLEM FIXED... THANKS IN ADVANCE...

MORE AND MORE FREQUENTLY WHEN THE IGNITION KEY IS TURNED TO START THE ENGINE, THE SECURITY SYSTEM ACTIVATES AND DISABLES THE ENGINE AND PREVENTS IT FROM STARTING FOR 10 MINUTES. THERE IS NO POSSIBLE OVERRIDE SO REGARDLESS OF WHERE YOU ARE (ON THE FREEWAY, ON A RR CROSSING, AT A TRAFFIC LIGHT, OR WHEREVER, THE ENGINE WILL SPIN BUT WILL NOT CRANK. YOU ARE PUT IN THE SITUATION OF HAVING TO PHYSICALLY PUSH THE VEHICLE OUT OF DANGER OR LET IT SIT UNTIL THE SECURITY SYSTEM RESETS TO ATTEMPT TO START IT. THIS HAS ALSO OCCURRED ON MY 2005 CHEVY COLRADO PICKUP WHICH IS EQUIPPED WITH AN IDENTICAL DRIVE TRAIN AS MY H3 HUMMER. THIS HAS HAPPENED MULTIPLE TIMES, MORE THAN 25.

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 55 MPH, THERE WAS A REDUCTION IN THE ENGINE POWER AS THE RPMS DECREASED. THE VEHICLE BEGAN TO VIBRATE VIOLENTLY. THE VEHICLE WAS TAKEN TO THE DEALER ON THREE SEPARATE OCCASIONS. THE MECHANIC REPLACED THE HEAD GASKET AND ENGINE COIL TWICE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 30,000.

TL* THE CONTACT OWNS A 2006 HUMMER H3. WHILE DRIVING AT 65 MPH, THE CHECK ENGINE LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE CONTACT WAS INFORMED THAT THERE WAS A MISFIRE IN CYLINDER NUMBER FOUR. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 133,338.

TL* THE CONTACT OWNS A 2006 HUMMER H3. WHILE STOPPED, THE CHECK ENGINE WARNING LIGHT ILLUMINATED, THE VEHICLE STARTED TO SHAKE, AND THEN STALLED. AFTER SEVERAL ATTEMPTS, THE VEHICLE WAS ABLE TO BE RESTARTED. THE FAILURE RECURRED MULTIPLE TIMES INTERMITTENTLY. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE CYLINDER HEAD NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 80,000. UPDATED 1/12/16 *CN

TL* THE CONTACT OWNS A 2006 HUMMER H3. WHILE DRIVING AT APPROXIMATELY 70 MPH, THERE WAS SMOKE AND AN ODOR COMING FROM THE AIR CONDITIONER. THE CRUISE CONTROL FAILED AND THE VEHICLE STALLED. THE VEHICLE WAS ABLE TO RESTART AFTER A FEW ATTEMPTS. THE VEHICLE WAS DRIVEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE CAM ACTUATOR NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 100,000.

GM HAS A SECURITY SYSTEM CALLED PASSLOCK THAT OVER TIME SEEMS TO FAIL AND TRIPS A "FAILURE" AND FLASHES A KEY SYMBOL ON THE DASH AND DISABLES STARTING YOUR VEHICLE UNTIL IT RESETS 10 MINUTES LATER. THIS OCCURS TO MY WIFE ALMSOT 50% OF THE TIME SHE TRIES TO START HER VEHICLE. SO FAR GM HAS COME FORWARD WITH A FIX YET I'VE SEEN POSTS ON HUMMER FORUMNS FROM HUNDREDS OF OWNERS. THIS HAS MANY SAFETY CONCERNS AS WELL AS JUST BEING A GENERAL ANNOYANCE: 1) IN LAS VEGAS WE ROUTINELY SEE TEMPATURES OVER 110F. IF THE SYSTEM TRIPS AND YOU HAVE TO WAIT 10 MINUTES IN THAT HEAT IT CAN BE DEADLY 2) MISSING APPONTMENTS OR BEING LATE TO WORK BECAUSE YOU VEHICLE INTENTIONALLY IS DISABLING ITSELF IT UNACCEPTABLE 3) GROCERIES COLD/FROZEN STUCK IN THE HEAT FOR 10 MINUTES WAITING FOR A RESET GET RUINED 4) MY WIFE WHEN ALONE IS STUCK WAITING OUTSIDE THE VEHICLE IN THE HEAT OR LOCKING HERSELF INSIDE WAITING FOR THE SYSTEM TO RESET CAN LEAVE HER EXPOSED TO CRIMINAL TYPES

ON SEVERAL OCCASIONS THE ENGINE HAS LOSS POWER IN TRAFFIC AND SLOWS DOWN TO 15 MILES AN HOUR. ONCE ON THE HIGHWAY CAUSING OTHER CARS TO SWERVE TO AVOID REAR ENDING US. ANOTHER IN RURAL TRAFFIC CAUSING OTHER CARS TO GO AROUND. WE ARE ALWAYS LEARY WHEN DRIVING THIS VEHICLE. OUR MECHANIC HAS LOOKED IT OVER ON BOTH OCCASIONS AND CAN NOT FIND ANYTHING WRONG AND WE HAVE THE BEST MECHANIC IN TOWN. GM SHOULD PAY A LITTLE NOW AND RECALL THIS VEHICLE AND FIX WHAT'S WRONG INSTEAD OF A LOT LATER WHEN SOMEONE'S FAMILY IS KILLED. I BOUGHT THIS CAR FOR MY WIFE TO TRANSPORT OUR GRANDCHILDREN TO SCHOOL AND AFTER SCHOOL EVENTS EVERY TIME SHE GETS IN THAT THING I WORRY BUT BECAUSE I BOUGHT IT FOR HER SHE IS RELUCTANT TO SELL. GM PLEASE FIX. *TR