2006 HUMMER H3 Engine Problems

The blower resistor and harness needs replaced it looks like it caught fire or default

On the electrical, I refer to my air conditioning and heater. When I have my air selection to coldest and I drop 1 click for it to be less cool, my heater turns on and at times it smells like something burning. I have to turn it off . On the engine, after I hit 90,000 miles, I have to fill up my engine oil every 2-3 weeks because my vehicle is burning it quick or something. It doesn't leak oil at all. The oil just seems like it's burning somewhere and I ha e to be waisting money to buy oil $30 to $60 a month. Please help. Thank you!

Was heading home from work and the 2006 Hummer H3 shut off while traveling in the middle of traffic was able to cruise in Nuetral until I could stop to start car again started car and yet again I receive a cylinder misfire code which has been repaired on multiple attempts still no success. I am going to end up either crashing or an emergency vehichle will be trying to get by and I can't move because the motor shut down.

Engine has very bad rough idle after multiple attempts to repair will get a misfire code often that goes on and comes off engine has rough idle to the point where truck shuts off completely while waiting at traffic light. My safety is at risk as this could happen during driving causing a wreck or during a light change when the emergency vehicles need me to move over and my truck don't run. Vehicle was inspected by multiple mechanic and still has issues. Check engine light comes on at time of motor failure or when rough idle.

P0305 CEL CODE CAME ON AND TOOK IT TO A MECHANIC. THEY DIAGNOSED THE ISSUE AND DID A COMPRESSION TEST WHICH PRODUCED RESULTS OF CYLINDER 5 HAVING 70 PSI AND THE OTHER CYLINDERS WERE NORMAL. DETERMINE THAT THE VALVES SEATS ARE BAD AND IT IS A COMMON ISSUE ON THE HUMMER H3. TOTAL COST FOR REPAIRS WAS PROJECTED TO BE $9,000 FOR ALL PARTS AND LABOR.

Mileage: 105,498

P0300 CODE. ENGINE MISFIRE. THE HUMMER FORUMS I'VE RESEARCHED SAY IT'S A COMMON PROBLEM IN THESE CARS, MANUFACTURED BEFORE MARCH 31, 2006. IT SEEMS THE ENGINE HEADS DO NOT HAVE PROPERLY HARDENED VALVE SEATS. AGAIN, I'M FINDING THIS IS A COMMON PROBLEM AND GM IS FULLY AWARE OF IT.

Mileage: 130,000

I HAVE OWNED THIS CAR FOR 10 YEARS. ITS ALWAYS GIVING ME PROBLEMS. ESPECIALLY THE ELECTRICAL AND ENGINE. I'VE GOTTEN 3 NOTICES IN THE MAIL FOR RECALLS AND GM HAS IGNORED MY REQUEST. AT THIS TIME I AM HOLDING THEM RESPONSIBLE BECAUSE MY HUMMER H3 IS ALWAYS IN AND OUT OF THE SHOP AND DONT FEEL LIKE IVE GOTTEN THE VALUE I DESERVE ON MY PURCHASE. PLEASE GIVE ME CALL AT [XXX]. IMY NAME IS [XXX]. EVEN THOUGH THERE ARE NO MORE HUMMER DEALERSHIPS AND NO ONE SPECIALIZES IN THE CARE OF THIS VEHICLE, I HAVE TAKEN COMPLETE CARE INSIDE AND OUTSIDE OF MY INVESTMENT AND HOPE TO GET SOME TYPE OF LEEWAY IN THIS MATTER. THANK YOU. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *CC *TR

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT THE VEHICLE FAILED TO START INTERMITTENTLY. ALL THE WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TAKEN TO CADILLAC OF NAPERVILLE (LOCATED AT 1507 OGDEN AVE, NAPERVILLE, IL 60540, (630) 355-2700) WHERE DIAGNOSTIC TESTING WAS COMPLETED, BUT A FAILURE CODE COULD NOT BE FOUND. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND DID NOT ASSIST. THE APPROXIMATE FAILURE MILEAGE WAS 100,000. *TT CONSUMER STATED ANTI-THEFT DEVICE WAS MALFUNCTIONING.*JB

Mileage: 100,000

MY TRUCK IS BURNING EXCESSIVE OIL BETWEEN OIL CHANGES

Mileage: 1,112,386

I PURCHASED THE VEHICLE WITH APPROXIMATELY 900 MILES ON IT. AT APPROXIMATELY 40,000 MILES, I HAD TO HAVE THE CYLINDER HEAD REPLACED. I WAS TOLD AT THE DEALERSHIP THAT THE HEAD CONTAINED A KNOWN DEFECT. AT 80,000 MILES, THE CYLINDER HEAD HAD TO BE REPLACED AGAIN, AS THE DEALERSHIP INSTALLED A SECOND DEFECTIVE HEAD WHEN THEY PERFORMED THE FIRST REPAIR. AT 127,000 MILES, THE CYLINDER HEAD HAS FAILED AGAIN, AS APPARENTLY THE DEALERSHIP INSTALLED A DEFECTIVE HEAD WHEN THEY PERFORMED THE SECOND REPLACEMENT.

Mileage: 127,000

TRUCK WILL NOT START FOR NO APPARENT REASON. KEY TURNS, SOUNDS LIKE IT WILL START BUT DOES NOT. THIS HAS HAPPENED ON SEVERAL OCCASIONS AND SEEMS TO BE AN ONGOING PROBLEM FOR OTHER HUMMER OWNERS TOO. I JUST HAD IT TOWED ONCE AGAIN TO THE MECHANICS SHOP. THIS IS THE 5TH TIME WITHIN ONE YEAR. UNABLE TO LEAVE MY HOUSE DURING AN EMERGENCY, CHILD RELATED.

Mileage: 115,000

1) 1.5 YEARS AGO WE STARTED GETTING "MISFIRE ON CYLINDER 5" CODE AND NOW IT IS MULTIPLE MISFIRES. 2) MY FANCY RIMS ARE PEELING

Mileage: 100,000

TL* THE CONTACT OWNS A 2006 HUMMER H3. WHILE DRIVING APPROXIMATELY 60 MPH, THE VEHICLE SHUT DOWN, LOCKED UP, AND DID NOT RESTART. THE CHECK ENGINE INDICATOR ILLUMINATED. THE VEHICLE RESTARTED LATER AND WAS TAKEN TO THE DEALER WHO WAS UNABLE TO DIAGNOSE OR DUPLICATE THE FAILURE. THE VEHICLE WAS TAKEN TO ANOTHER DEALER WHERE THE FOLLOWING CODES WERE RUN FOR THE CHECK ENGINE WARNING: C0240, P0106, P0601. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 130,000.

Mileage: 130,000

WHEN I START VEHICLE SMOKE BLOWS OUT THE EXHAUST FOR 30-90 SECONDS THEN IT IS GONE. SITTING STILL AND ONLY DOES IT WHEN IT STARTS UP. GOOGLED THIS AND OTHERS HAVE HAD THIS ISSUE. HEAD GASKET LEAKING INTO VALVES. THIS IS A HEADACHE FOR TONS OF HUMMER OWNERS, SO WHY HAVEN'T THEY ISSUED A RECALL? STARTED LAST YEAR, POSSIBLY IN 2015 AND I'VE JUST KEPT AN EYE ON THE OIL AND KEEP REFILLING AS NEEDED.

Mileage: 115,000

TL* THE CONTACT OWNS A 2006 HUMMER H3. WHILE DRIVING APPROXIMATELY 70 MPH, THE VEHICLE SHOOK VIOLENTLY AS IT APPROACHED A STOP. WHILE IDLING, THE VEHICLE OPERATED NORMALLY. AN INDEPENDENT MECHANIC DIAGNOSED THAT THE VEHICLE NEEDED A NEW CYLINDER HEAD AND SENSORS. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 32,000. UPDATED 07/12/17*LJ *CN

Mileage: 32,000

TL* THE CONTACT OWNS A 2006 HUMMER H3. WHILE DRIVING 70 MPH, THE VEHICLE INDEPENDENTLY DECELERATED TO 30 MPH. THE STABILITY TRACKING SYSTEM, CHECK ENGINE, AND A THIRD INDICATOR ALL ILLUMINATED. THE FAILURE RECURRED MULTIPLE TIMES. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE WIRES OVER THE ENGINE FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 15V421000 (VISIBILITY). THE APPROXIMATE FAILURE MILEAGE WAS 50,000.

Mileage: 50,000

THERE ARE MANY FORUMS ABOUT CYLINDER MISFIRES - ESPECIALLY AFTER THE WARRANTY RUNS OUT. I LOOKED IT UP AND WAS SHOCKED TO SEE HOW MANY OTHER PEOPLE HAVE HAD THE SAME ISSUE AND NOTHING HAS BEEN DONE ABOUT IT. EVERY HUMMER OWNER I KNOW HAS PAID THOUSANDS OF DOLLARS TO GET THEIR PROBLEMS FIXED. WHY IS THERE NOT A RECALL WHEN SO MANY HAVE THE SAME PROBLEM?? THE IDLE IS ROUGH. THE ENGINE SPUTTERS. THE LIGHT GOES ON AND OFF CONSTANTLY.

Mileage: 95,000

I PURCHASED A 2006 HUMMER H3 WITH ONLY 100K, AFTER PERFORMING A COMPLETE SERVICE I WAS MADE AWARE THE CYLINDER HEADS ARE "DEFECTIVE" THE VEHICLE WAS DRIVEN FOR 5 MONTHE THEN THE CHECK ENGINE LIGHT CAME ON.. A CODE SCANNER INDICTACTED A #2 CYLINDER MISFIRE REPLACED SPARK PLUG, COIL PACACK AND INJECTOR NO LUCK I WAS INFORMED CYLINDER HEAD NEED TO BE REPLACED, AT WHAT COST DOES THE NHTSA REALIZE THAT THIS WAS A MAJOR MANUFACTURING DEFECTS, YES GM REPLACED CYLINDER HEADS UNDER WARRANTY BUT WITH THE SAME DEFECTIVE HEDS AS TO PASS ON THE COST TO THE CONSUMER AS SOON AS THE WARRANTY EXPIRE TO GET THEIR WARRANTY MONEY BACK., THERE HAS BEEN NUMEROUS COMPLAINTS AND YET NTHSA REFUSES TO INFORM GM OF THE "DEFECT" IT SEAMS ALL THE NTSHA CARES ABOUT IS ELECTRICAL CONCERNS ON VEHICLES, SO WHO MAKE THE DETERMINATION THE A POOR DESIGNED CYLINDER HEAD SHOULD BE THE CONSUMERS PROBLEM. THIS IS WHERE AN INDIVIDUAL SHOULD BE HELD ACCOUNTABLE, IT TOOK A THREAT FROM THE NHTSA FOR GM TO ISSUE A RECALL ON THE HVAC CONNECTOR TO GET RESOLVED., IF THE NHTSA CANNOT UNDERSTAND MECHANICAL DEFECTS SHOULD THERE BE A RECALL WHEN MORE THAN 500 COMPLAINTS ARE ACHIEVED. SO NOW I AM OUT OF POCKET $2800.00 THANKS TO A ADMINISTRATION THAT HAS NO CLUE ON MECHANICAL ISSUES. YOU SHOULD HIRE AN INDIVIDUAL WHO HAS MECHANICAL DEGREE TO HOLD CAR COMPANIES RESPONSIBLE FOR POOR MECHANICAL ISSUES SO WILL I RECEIVE A RESPONSE TO THIS ISSUE AS WE ALL KNOW GM HAS INFORMED DEALERS TO GIVE CUSTOMERS EXCUSES AS TO WHY THEY ARE NOT LIABLE, MY CONCLUSIONS INDICATE THAT THE NHTSA ONLY ACTS ON AIR BAGS BRAKE SWITCHES AND ELECTRICAL ISSUES NOTHING MECHANICAL.....

Mileage: 100,231

I HAVE A 2006 HUMMER H3 AND I'VE HAD ISSUES WITH MY IGNITION SWITCH CUTTING OFF WHILE I'M DRIVING DOWN THE ROAD . THERE ARE TIMES THAT MY CAR WILL NOT START DO TO THIS. I'VE HAD IT TESTED AND IT'S THE IGNITION SWITCH THAT I'M TAKING ABOUT. WHY IS THIS NOT BEING RECALLED!!!!! SOMEONE'S LIFE CAN BE TAKEN AWAY FOR SOMETHING THAT KEEPS HAPPENING TO THESE HUMMER H3!!!!!

TL* THE CONTACT OWNS A 2006 HUMMER H3. WHILE DRIVING AT AN UNKNOWN SPEED, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE SECOND CYLINDER WAS MISFIRING AND THE HEAD GASKET AND/OR CYLINDER NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 70,000. THE VIN WAS UNAVAILABLE.

Mileage: 70,000

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?

Mileage: 150,000

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...

Mileage: 49,000

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.

Mileage: 84,000

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.

Mileage: 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.

Mileage: 133,338

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THE VEHICLE FAILED TO START. THE FAILURE OCCURRED SEVERAL TIMES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 130,000.

Mileage: 130,000

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

Mileage: 80,000

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.

Mileage: 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

Mileage: 60,000

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

Mileage: 57,000

ROUGH IDLE, ENGINE LIGHT APPEARS. IN PAST HAVE BEEN TOLD HAVE BEEN TOLD GAS CAP RELATED OR POSS THERMOSTAT OR INTERMIT MISFIRE. TODAY DEALERSHIP SAYS CYLINDER #2 NOT WORKING. NEED TO REPLACE. AT A COST OF $3000+. RELATED TO L52 ENGINE CONCERNS & INTAKE VALVE SEATS. INCLUDING COLORADO & CANYONS. WHY ARE SOME RECALLED, AND/OR FIXED ON MANUFACTURER'S DIME, BUT NOT OTHERS? GM KNEW OF CONCERN, (THUS CHANGED TO LLR ENGINE). MINE FITS THE YEAR AND WELL BELOW THE VIN #. WHY SHOULD 287591 H3 OWNERS HAVE TO PAY FOR GM'S MISTAKE? *TR

Mileage: 74,188

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT THE VEHICLE ACCELERATED INDEPENDENTLY AND STALLED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 85,000.

Mileage: 85,000

OWN HUMMER H3 2006. RANDOMLY, TRACTION, FAILURE,REDUCED,POWER,STAB SYS, SERVICE. WHEN THIS HAPPENS, THE CAR CAN BE DRIVEN ONLY AROUND 40 MILE PER HOUR WHICH IS VERY DANGEROUS ON FREE WAY. IT ONLY HAPPENS RANDOMLY. USUALLY AFTER RAIN OR COLD WEATHER. BUT THE DEALERSHIP SAID THEY CANNOT REPRODUCE THE PROBLEM. CALLED GM, THEY TOLD ME THEY CANNOT DO ANYTHING ALTHOUGH THEY SAY THERE IS AN INVESTIGATION AND THERE MIGHT BE FUTURE RECALL. *TR

Mileage: 70,000

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT THE ENGINE WARNING LIGHT ILLUMINATED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO THE DEALER, WHO STATED THAT THE ENGINE HEAD AND/OR ANOTHER COMPONENT NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 82,600.

Mileage: 82,600

LEARNED THAT OUR VEHICLE WAS KNOWN TO GM IN 2008 THAT THEY HAD A DESIGN DEFECT THAT CAUSED PISTONS TO FAIL. THE CHECK ENGINE LIGHT CAME ON, WE WENT TO GM DEALERSHIP, CALLED THEIR CORPORATE OFFICES AFTER LEARNING THE KNEW OF THE PISTON DEFECT SINCE AT LEAST 2008. I'M SURE THEY HAVE REPLACED MILLIONS OF PISTONS DURING WARRANTY BUT THE COST OF REPLACEMENT IS $5000. WE LEASED THIS VEHICLE FOR 3 YEARS AND ARE PURCHASING IT. GM REFUSED TO ASSIST US IN FIXING THIS ISSUE. THEY ARE DISHONEST AND UNPROFESSIONAL. HOW MANY VEHICLES IN THE US HAVE PISTON FAILURES AS A DESIGN DEFECT? THEY SHOULD HAVE ISSUED A RECALL. *TR

Mileage: 125,000

THE VEHICLE WAS PURCHASED USED ON A SATURDAY WITH THE DEALERSHIP NOT ADVISING US THERE WERE ANY ISSUES. THE NEXT DAY WE HEADED TO THE LAKE AND 20 MINUTES LATER WE WERE SITTING ON THE SIDE OF THE ROAD. THE VEHICLE WAS IDLING VERY HARD WITH RPM GOING CRAZY. NOW OVER A YEAR AND SEVERAL VISITS TO THE SHOP LATER WE ARE STILL EXPERIENCING THE SAME ISSUE. WHEN THE VEHICLE IS INITIALLY TURNED ON IT WILL NOT MOVE. IT HAS TO SIT FOR ABOUT 3 MINUTES WITH THE ENGINE LIGHT FLASHING. IF YOU TRY TO PUSH THR GAS NOTHING HAPPENS. THE VEHICLE IDLES VERY HARD. IT IS ONLY FIRING ON 4 CYLINDERS AND THE DEALERSHIP SAYS THAT GM IS AWARE OF THE ISSUE. THEY SAID IT IS A "BAD BATCH" AND WILL JUST HAVE TO KEEP REPLACING THE HEAD TO FIX THE PROBLEM. THIS IS NOT FAIR TO THE CONSUMER AND NEEDS TO BE ADDRESSED BY GM. *TR

Mileage: 85,000

WHILE DRIVING AT 45MPH ALL SYSTEMS SHUT OFF. NO POWER STEERING NOTHING. THE CAR WOULD NOT RESTART. THIS HAPPENED MULTIPLE TIMES WITH OUT WARNING. *TR

Mileage: 66,104

CAR HAS BEEN SPONTANEOUSLY STALLING WHILE DRIVING AT HIGH SPEEDS. ENGINE CUTS OUT, POWER BRAKES AND STEERING FAIL, NO RADIO, ETC. VEHICLE LOSES ALL POWER. IT IS TERRIFYING. HAS HAPPENED AT LEAST 3 DOZEN TIMES NOW. SEVERAL VISITS TO DEALER COULD NOT PINPOINT PROBLEM. DEALERS UNABLE TO DUPLICATE STALLING, ALTHOUGH IT HAS HAPPENED TO ME REGULARLY FOR MONTHS - IE, EVERY TIME I DRIVE THE CAR (WITH MY TWO BABIES) FOR AN EXTENDED PERIOD ON THE HIGHWAY. *TR

Mileage: 89,000

OWNED THE CAR SINCE 2006 WITH NO PROBLEMS--REGULARLY MAINTAINED, 125,000 MILES. MY WIFE TOOK IT TO THE SHOP WHERE SHE WAS TOLD THE ENGINE HAD "LOW COMPRESSION." AFTER THE REVIEW, THE MANAGER SAID HE HAD BAD NEWS, THAT THE CAR NEEDED TO BE TRADED IN/SOLD IMMEDIATELY AND NOT TO DRIVE IT UNTIL IT WAS BECAUSE THE PISTON WAS DEFECTIVE. I VERIFIED THE RESULTS WITH 2 OTHER MECHANICS THAT THE 5 CYLINDER H3S LOSE COMPRESSION OUT THE BLUE. THE SHOP MANAGER BASICALLY TOLD ME THAT I NEED TO SELL/TRADE IN THE VEHICLE, BUT NOT TO DRIVE IT UNTIL I HAD DONE SO, APPARENTLY THIS ISSUE HAS HAPPENED TO 06 H3S RELIGIOUSLY WHERE THE COMPRESSION DIMINISHES AND LEADS TO THE ENGINE DYING. WE FEEL LIKE WE'VE BEEN PUNCHED IN THE GUT BY HUMMER. HOW CAN A CAR PERFECTLY MAINTAINED ALL OF A SUDDEN HAVE "LOW COMPRESSION" AND LEAD 3 PROFESSIONALS TO ADVISE US TO SELL IT IT AS SOON AS POSSIBLE? THIS HAS BEEN KNOWN BY HUMMER (PIP3935D) AND THEY DID NOTHING ABOUT IT. WE CALLED GM AND THEY WANTED TO LOOK AT THE ENGINE TO DIAGNOSE IT THEMSELVES. PISTONS 2 AND 3 WERE BAD. OUR VIN NUMBER IS COVERED BY THE PIP3935D BUT THE DEALERSHIP REFUSED TO ACKNOWLEDGE THIS. THEY REFUSED TO ASSIST US UNLESS WE PAID $6000 FOR THE "REPAIR"--BUT THIS ISSUE WILL RE-OCCUR. I HAVE MADE A CALL TO GM CORPORATE BUT HAVE YET TO RECEIVE A REPLY. IN THE MEANTIME WE STILL OWE OVER $4000 ON THIS VEHICLE THAT WE LEASED IN 2006, THEN PURCHASED. OUR VEHICLE IS UNSELLABLE AND WE DON'T HAVE $6000 TO FIX THIS KNOWN HUMMER 2006 H3 DEFECT. GM HAS BEEN AWARE OF THE DEFECT SINCE 2008 AND REFUSES TO ACT LIKE PROFESSIONAL, UNDERSTANDING, COMPASSIONATE INDIVIDUALS. I WILL NEVER PURCHASE OR RECOMMEND THE PURCHASE OF A GM AGAIN BASED ON THIS LIFE-CHANGING EXPERIENCE. HOW CAN A DEALERSHIP (THAT THE US GOVERNMENT BAILED OUT OF BANKRUPTCY) TREAT ITS CUSTOMERS THIS WAY? WE HAVE SPENT $30,000++ SINCE LEASING/PURCHASING IT IN 2006. *TR

Mileage: 125,000

OWNER THE CAR SINCE 2006 WITH NO PROBLEMS--REGULARLY MAINTAINED, 125,000 MILES. AFTER A RECENT LONG TRIP MY WIFE TOOK IT TO THE SHOP WHERE SHE WAS TOLD THE ENGINE HAD "LOW COMPRESSION." THE SHOP WAS TRUSTED 100% AND BEEN USED FOR DECADES. SERVICE MANAGER SAID THEY WOULD SEE WHAT THEY COULD DO ABOUT THE LOW COMPRESSION AND THAT THEY WOULD HAVE TO CHECK EACH OF THE PISTONS. AFTER THE REVIEW, THE MANAGER SAID HE HAD BAD NEWS, THAT THE CAR NEEDED TO BE TRADED IN/SOLD IMMEDIATELY AND NOT TO DRIVE IT UNTIL IT WAS. I VERIFIED THE RESULTS WITH 2 OTHER MECHANICS THAT THE 5 CYLINDER H3S LOSE COMPRESSION OUT THE BLUE--COMMON AMONG 5 CYLINDER H3S. THE SHOP MANAGER BASICALLY TOLD ME THAT I NEED TO SELL/TRADE IN THE VEHICLE, BUT NOT TO DRIVE IT UNTIL I HAD DONE SO, APPARENTLY THIS ISSUE HAS HAPPENED TO 06 H3S RELIGIOUSLY WHERE THE COMPRESSION DIMINISHES AND LEADS TO THE ENGINE DYING. . IT'S A POSSIBLE TO BUY A USED ENGINE WITH THE POSSIBILITY THAT THE COMPRESSION COULD DIE AGAIN. NEEDLESS TO SAY, WE FEEL LIKE WE'VE BEEN PUNCHED IN THE GUT BY HUMMER. HOW CAN A CAR PERFECTLY MAINTAINED ALL OF A SUDDEN HAVE "LOW COMPRESSION" AND LEAD 3 PROFESSIONALS TO ADVISE US TO SELL IT L IT AS SOON AS POSSIBLE? THIS HAD TO HAVE BEEN KNOWN BY HUMMER AND THEY DID NOTHING ABOUT IT. MEANTIME, WE ARE PROBABLY OVER/UNDER ON THE VEHICLE AND WILL HAVE TO GET RID OF IT. *TR

Mileage: 125,000

FIRST OF ALL, THE DATE OF THE INCIDENT IS VERY VAGUE CONSIDERING IT'S BEEN HAPPENING MOST OF THE LIFE SPAN OF THE VEHICLE. EVER SINCE THE VEHICLE REACHED 30,000 MILES THE CHECK ENGINE LIGHT HAS BEEN GOING ON AND OFF PERIODICALLY. NOW THERE IS AROUND 85,000 MILES AND I CAN HONESTLY SAY THE CHECK ENGINE LIGHT HAS BEEN ON FOR MOST OF THE LIFE OF THE CAR. THE CODE IS ALWAYS P0300. THIS IS DUE TO A RANDOM MISFIRE IN THE CYLINDER HEADS. I HAVE HAD THIS CAR LONG ENOUGH TO SAY THIS TYPICALLY HAPPENS DURING IDLE. THIS CAR HAS ALWAYS HAD A ROUGH IDLE. I WOULD SAY TEN PERCENT OF THE TIME IT'S A SMOOTH IDLE. I ALWAYS USE GOOD GAS, CLEAN OIL AND UP TO DATE MAINTENANCE ON THIS VEHICLE AND I NEVER STRESS THE ENGINE DUE TO IT'S FEELING OF IT BEING SO FRAGILE. GOING ONLINE I AM ASTONISHED TO FIND SO MANY WITH THE SAME EXACT PROBLEM. GM HAD THE SAME RECALL ON THE INLINE 5 CYLINDER CANYON CYLINDER HEADS. THIS IS THE SAME PROBLEM WE ARE HAVING WITH OUR INLINE 5 CYLINDER ENGINE HEADS. GM NEEDS TO PUT THIS ON RECALL. FIX THEIR MISTAKE AND KEEP THIS CHECK ENGINE LIGHT FROM GOING ON EVERY TIME I PARK MY CAR, START MY CAR OR SIMPLY IDLE. MANY WOULD BE GRATEFUL IF THIS WAS RECALLED. *TR

BLOWER MOTOR QUIT WORKING. TOOK TO DEALER SAID NEEDED MOTOR WIRING HARNESS AND RESITOR. THEY SAID THE WIRING HARNESS CAUGHT FIRE AND FUSED TOGETHER. COST OF 300.00 TO FIX. FIRE HAZARD. *TR

Mileage: 120,000

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT THE VEHICLE WOULD NOT ACCELERATE OVER 50 MPH. IN ADDITION, THE VEHICLE WOULD SPORADICALLY STALL WITH THE ILLUMINATION OF THE CHECK ENGINE WARNING LIGHT ILLUMINATED. ALSO, THE VEHICLE WOULD OVERHEAT WHEN THE FAILURE OCCURRED. THE VEHICLE WAS TAKEN TO A MECHANIC WHERE A DIAGNOSTIC WAS PERFORMED. THE DEALER ADVISED THAT THE CATALYTIC CONVERTER, AIR SENSOR, COIL SPRINGS, AND THE SPARK PLUGS NEEDED REPLACING. THE VEHICLE WAS REPAIRED BUT THE FAILURE PERSISTED. THE FAILURE MILEAGE WAS 80,000 AND THE CURRENT MILEAGE WAS 87,000.

Mileage: 80,000

THE CHECK ENGINE CAME ON AND I TOOK IT TO MY DEALERSHIP TO HAVE IT CHECKED OUT.THEY PERFORMED A DIAGNOSTIC THAT LOCATED THE FAILURE AT THE ENGINE HEAD CYLINDER (ENGINE MISSFIRE). THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED AND DENIED ASSISTANCE WITH THE REPAIR BECAUSE THE VEHICLE WARRANTY WAS EXPIRED. THE MECHANIC STATED IT WAS DUE TO AN INFERIOR SOFT METAL USED TO MANUFACTURE THE HEADS WHICH CAUSED A LOSS OF COMBUSTION WHEN THE ENGINE WAS IDLING. THE BLOWBACK AT IDLE WAS WHAT WAS CAUSING THE ENGINE LIGHT TO ILLUMINATE. MECHANIC ALSO STATED THIS PROBLEM WAS A RECURRING PROBLEM IN THIS 5CYL ENGINE WHICH IS THE SAME ENGINE THAT IS IN THE COLORADO PICKUPS AND IS COVERED UNDER A GM RECALL IN THE PICKUPS BUT NOT THE HUMMER. THE MECHANIC STATED THAT THE ISSUE WILL ONLY GET WORST. PLEASE HELP AS I WAS GIVEN A PRICE TO REPAIR OF APPROX. $3183 IF I WAS GOING TO PAY FOR THE REPAIRS MYSELF AT THE DEALERSHIP. WHAT CAN A PERSON DO WHEN THIS IS A KNOWN MFG DEFECT, MANY COMPLAINTS ABOUT THIS ISSUE WITH NO RECOURSE. *TT

Mileage: 71,000

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT THE TEMPERATURE GAUGE HAD INCREASED SEVERAL TIMES AND WHEN HE INSPECTED THE VEHICLE, HE FOUND RADIATOR COOLANT LEAKING FROM THE RADIATOR TOP SEAL. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE HE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 83,000.

Mileage: 83,000

CAME OUT OF WORK TO FIND A PUDDLE OF COOLANT ON THE GROUND. RADIATOR PLASTIC CRACKED. FLUID IS ON FAN AND THROUGHOUT ENGINE COMPARTMENT. SEARCHED ON GOOGLE AND FOUND THIS IS A KNOWN ISSUE. GM DEALER AND CUSTOMER SERVICE ACKNOWLEDGED THIS IS A COMMON ISSUE, HOWEVER WOULD DO NOTHING ABOUT IT. *TR

Mileage: 88,768

THE SERVICE TECHNICIAN DIAGNOSED A CRACKED RADIATOR, WHICH IS A KNOW HUMMER H3 ISSUE. THEY HAVE ASKED FOR $850+ TO FIX WHAT IS A KNOWN DESIGN FLAW. HTTP://WWW.HUMMERFORUMS.COM/FORUM/HUMMER-H3-17/READ-IF-YOUR-H3-RADIATOR-HAS-CRACKED-LEAKED-21184/. *TR

Mileage: 101,000

I WENT IN TO DEALER FOR WHAT I CALLED A FLUTTERING PERIODIC IDLE. THEY TOOK A LOOK $200.00 LATER TOLD ME I HAD MISFIRE IN #2 AND #5 AND NEEDED NEW HEAD. YOU CAN IMAGINE MY COMMENTS AND HE SAID IT IS COMMON HE JUST DID ONE LAST WEEK ON THE SAME YEAR AND TYPE H3! WELL I WAS IN TOUCH WITH GM - THE CAR IS OUT OF WARRANTY BUT LOW MILEAGE. THEY DID COVER A PORTION AND I WAS RESPONSIBLE FOR THE REST. WELL I PICK UP WEEK LATER. WAS TOLD IT WAS TEST DRIVEN AND RUNS GREAT. I TOLD THEM IT RAN GREAT BEFORE JUST THE FLUTTERING IDLE WHEN I STOPPED AT A LIGHT. THEY SAID YOU ARE ALL SET.. MANY BAD WORDS ESCAPED MY MOUTH WHEN I DROVE HOME AND IT WAS NOT FIXED. THE VEHICLE STILL DROVE THE SAME WAY IT DID BEFORE AND THE FLUTTER WAS STILL THERE,. SO NOW I HAVE TO BRING IT BACK AGAIN AND I MADE THE TECH GET IN THE VEHICLE SO HE KNEW WHAT I WAS TALKING ABOUT AND HE SAID WELL IT WAS BROUGHT IN FOR A MISFIRE. UHHH NO IT WAS NOT. WHY HAS GM NOT DONE ANY TYPE OF RECALL ON THIS IF IT IS KNOWN PROBLEM. FEEL LIKE THEY DON'T CARE SINCE THE VEHICLE IS NOT MADE ANYMORE WHAT DOES IT MATTER TO THEM. I COULD CONTINUE BUT AM LIMITED TO CHARACTERS. *TR

Mileage: 42,000

THE CHECK ENGINE LIGHT WENT ON AND OFF. THE VEHICLE WAS TAKEN TO A MECHANIC WHO DIAGNOSTIC AS CYLINDER #1 MISFIRE. COMPRESSION TEST FAILED DUE TO CYLINDER LEAKAGE. THE MAIN PROBLEM WAS TO AT THE TIME OF MANUFACTURING THE ENGINE SOFT METALS WERE USED WITH THE HEADS. I WAS TOLD I NEED TO REPLACE CYLINDER HEAD AND RELATED PARTS. CONTACTED GM HUMMER DIVISION INFORMED THEM OF MY PROBLEM WITH MY 3.5L, 5 CYLINDER ENGINE AND ASK THEM FOR ASSISTANCE SINCE THEY DID A SPECIAL EXTENDED WARRANTY FOR THE 2006 COLORADO AND CANYONS WITH THE SAME ENGINE PROBLEMS. THEY REFUSED TO HELP. *TR

Mileage: 79,998

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 65 MPH, THE VEHICLE SUDDENLY STALLED. THE CHECK ENGINE LIGHT ILLUMINATED ON THE INSTRUMENT PANEL DURING THE FAILURE. THE VEHICLE WAS TAKEN TO THE DEALER FOR A DIAGNOSTIC TEST. THE TECHNICIAN STATED THAT THE ENGINE'S CYLINDER HEAD WOULD HAVE TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 103,000.

Mileage: 103,000

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT WAS TRAVELING 50 MPH WHEN THE SMELL OF COOLANT EMITTED INSIDE OF THE VEHICLE AND WHITE SMOKE WAS VISIBLE FROM UNDER THE HOOD. THE CHECK ENGINE WARNING LIGHT ILLUMINATED INTERMITTENTLY WITH THE FAILURE. THE CONTACT CONFIRMED THAT THE ENGINE WAS OVER HEATING. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHO CONFIRMED THAT THE RADIATOR NEEDED TO BE REPLACED. THE MANUFACTURER WAS CONTACTED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 65,934 AND THE CURRENT MILEAGE WAS 65,936.

Mileage: 65,934

TL* THE CONTACT OWNS A 2006 HUMMER H3. THE CONTACT STATED THAT THE INSTRUMENT PANEL DISPLAYED A WARNING MESSAGE THAT READ 'REDUCED POWER SERVICE STABILIZER SYSTEM TRACKING FAILED' AND THE VEHICLE FAILED TO ACCELERATE BEYOND 40 MPH. THE VEHICLE WAS TAKEN TO THE DEALER AND WAS REPAIRED. THE FAILURE CONTINUED. BOTH THE DEALER AND THE MANUFACTURER WERE UNABLE TO FURTHER DIAGNOSE THE FAILURE. THE FAILURE AND CURRENT MILEAGES WERE 70,000.

Mileage: 70,000