2007 Hummer H3

MY VEHICLE HAS A CRACKED RADIATOR AND ACCORDING TO OTHER HUMMER OWNERS THIS IS A COMMON DEFECT THAT HAPPENS TO THESE VEHICLES. HIS OVER HEATING CUASED ME TO PULL OVER ON A BUSY HIGHWAY WERE I COULD OF BEEN HIT AND KILLED, TOTAL FAILER OF VEHICLE ELECTRONICS, GMC DOES NOT WANT TO WORK ON THE VEHICLE THAT IS NOT UNDER WARRANTY, BECAUSE OF THE MANY PROBLEMS WTH THIS VEHICLE. THIS CRACK IS WERE IT IS WEARING NEAR THE MOTOR. *TR

I PURCHASED THIS VEHICLE, NEW IN JULY 2007. SINCE THAT TIME I HAVE METICULOUSLY MAINTAINED THE VEHICLE. ON 7/28/14, PARKED AT HOME. GOT OUT AND SMELLED COOLANT VAPORIZING (DISTINCT SMELL). I AM A RETIRED MASTER MECHANIC, WITH 44 YEARS EXPERIENCE (CURRENTLY AGE 60). I EXAMINED THE RADIATOR, RINSED IT OFF AND DRIED IT, PRESSURIZED THE SYSTEM TO DISCOVER A HAIRLINE CRACK IN THE UPPER, PLASTIC TANK OF THE RADIATOR IN AN AREA WITH NO IMPINGEMENT OF OTHER COMPONENTS, NO TRAUMA, AND NO ROUGH USE, EVER. I CAUGHT IT AT THE VERY FIRST MANIFESTATION, SOLELY BY THE SMELL. EXAMINING THE VEHICLE CLOSELY TO DISCOVER WHILE MY RADIATOR HAD ONLY THIS HAIRLINE CRACK IN A LOCATION OF NO-STRESS AND NO IMPINGEMENT OF OTHER COMPONENTS. RESEARCH FURTHER TO DISCOVER THIS IS A VERY COMMON PROBLEM WITH THE H3, FROM 2006, 2007, 2008 AND 2009 MODELS ALL IN THE 50,000 TO 100,000 MILE READINGS. THE REPLACEMENT OF THE RADIATOR AT LOCAL GM DEALER, WITH COOLING SYSTEM SERVICE WAS EXTREMELY EXPENSIVE AS THE REPLACEMENT OF THE RADIATOR REQUIRES THE RECEIVER DRYER OF THE AIR CONDITIONING SYSTEM TO BE DISCONNECTED WHICH REQUIRES DISCHARGE AND RECHARGE OF REFRIGERANT R124A. I SAVED THE DEFECTIVE RADIATOR. THERE IS NO OTHER WEAR NOR DAMAGE. THE INTERNAL CORES WERE CLEAR AND CLEAN LIKE NEW. NO OBSTRUCTIONS, DIRT NOR WEAR. IN OTHER WORDS I WAS FORCED TO REPLACE A PERFECTLY GOOD RADIATOR FOR 1 HAIRLINE CRACK ON THE UPPER PLASTIC TANK. THIS REPAIR, INCLUDING ALL COURTESY DISCOUNTS FROM THE SELLING DEALERSHIP, AS I HAD BEEN AN AUTO REPAIR SHOP OWNER AND LOYAL CUSTOMER FOR 30 YEARS OF MY LIFE, COST ME $966.57. NHTSA SHOULD DO A FORMAL DEFECT INVESTIGATION ON ALL THE HUMMER H3 MODELS AND ANY / ALL OTHER GM LIKE-TYPE VEHICLES WITH THE PLASTIC TANK RADIATORS WHICH COULD CAUSE A SERIOUS ACCIDENT OR DEATH. *TR

LESS THAN 1 YEAR AGO, I HAD THE RADIATOR AND TRANSMISSION REPLACED IN MY VEHICLE. I HAVE RECENTLY NOTICED THE SMELL OF ANTIFREEZE COMING FROM MY HOOD AFTER LONG TRIPS. THE RADIATOR THAT WAS INSTALLED IN MY VEHICLE 10 MONTHS AND 8K MILES AGO HAS DEVELOPED A CRACK IN THE TOP TANK. THERE IS DRIED COOLANT SPRAY ACROSS THE TOP OF MY ENGINE AND A CRACK FORMING RIGHT BEHIND THE LIP OF THE FRAME OF THE TRUCK. *JS

44,000 MILES CHECK ENGINE LIGHT CAME ON . TOOK TO DEALER I HAD A CYLINDER 5 MISFIRE CODE P300 COUPLE THOUSAND MILES LATER MY TRUCK WAS STILL SHOWING MULTIPLE MISFIRES. I HAD TO REPLACE THE RADIATOR BECAUSE IT WAS LEAKING AND THERMOSTAT AT 46,000, APRIL 2011 AT 65,000MILES MY TRANSMISSION WENT OUT COMPLETELY AND HAD TO BE REPLACED JULY 2012 AIR STOP WORKING TOOK TO DEALER THEY SAID I HAD TO REPLACE THE FAN BLOWER MOTOR RESISTOR. RESEARCHED AND FOUNDED THIS WAS A KNOWN PROBLEM FOR HUMMERS THE MOTOR GETS TO HOT AND MELT CAUSING THE FAN BLOWER TO GO OUT . SEVERAL MONTHS LATER CHECK ENGINE LIGHT CAME ON SEVERAL MORE TIMES TOOK TO THE DEALER SAID THEY COULDN'T FIND PROBLEM AND CLEARED CODE MY CHECK ENGINE LIGHT CAME ON AGAIN SO I TOOK TO AUTO ZONE DIAGNOSTIC SHOWED CYLINDER 5 COIL MULTIPLE MISFIRE SO I HAD SPARK PLUGS CHANGED ALONE WITH ALL FIVE IGNITION COILS. COUPLE MONTHS LATER CHECK ENGINE LIGHT CAME ON AGAIN TOOK IT TO DEALER DIAGNOSTIC TEST REVEAL CODE PO 300 AGAIN AND COUPLE OTHER CODES DEALER SAID MY TRUCK HAD AN EMISSION LEAK. MULTIPLE MISFIRE ,CYLINDER 5 AND A SMALL CRACK IN THE HEAD. I DIDN'T UNDERSTAND HOW THAT MAGICALLY HAPPEN. I PAID THE DEALER TO FIX THIS ON MARCH 2014. A WEEK LATER CHECK ENGINE LIGHT CAME ON AGAIN . TOOK TO DEALER DIAGNOSTIC SHOWED EMISSION LEAK APPARENTLY THEY DIDN'T FIX IT THE FIRST TIME. WEEK LATER CHECK ENGINE LIGHT CAME ON AGAIN TOOK TO DEALER AND DIAGNOSTIC TEST REVEAL TORQUE CONVERTER CLUTCH SOLENOID .DEALER SAID I NEED TRANSMISSION REPLACED. I'M CONFUSED AT THIS POINT THE DEALER PUT A NEWTRANSMISSION 3 YEARS PRIOR .MY TRUCK HAS NEVER BEEN OVER THE ROAD. I ONLY DRIVE LOCALLY. NOW AT 103,000 MILES THE DEALER IS SAYING I NEED ANOTHER TRANSMISSION . SOMETHING IS NOT RIGHT HERE. AFTER RESEARCHING I'VE FOUND THOUSAND OF HUMMER OWNERS EXPERIENCING THE SAME PROBLEMS I'VE EXPERIENCED. SOMETHING NEEDS TO BE DONE TO PROTECT CONSUMERS. *TR

I OWN A 2007 HUMMER H3 WITH 66000 MILES ON IT. IT HAS BEEN DIAGNOSED AS HAVING A BAD HEAD DUE TO THE USE OF SOFT METALS FOR THE CYLINDER SLEEVE. DUE TO THIS, THERE IS SUDDEN REDUCED POWER. THE COST OF THIS FIX IS ABOUT $4500.00. MY TRUCK BEGAN WITH A CHECK ENGINE LIGHT ON (AUTOZONE) SAID IT WAS A MISFIRE ON CYLINDER #5. I WENT TO THE LOCAL DEALER AND ASKED THEM TO LOOK AT THE TRUCK. THEY DIAGNOSED IT AS A #5 CYLINDER HAVING THE COMPRESSION LEAK OF 90%. IN LOOKING ON THE INTERNET (AT HUMMER FORUMS), I OBSERVED THAT QUITE A FEW HUMMER H3 OWNERS WERE WRITING IN ABOUT THEIR EXPERIENCE WITH MISFIRES AND BAD HEADS, AT ABOUT THE SAME MILEAGE. I THINK THIS NEEDS TO BE LOOKED INTO AND THAT GM SHOULD BE ORDERED TO DO A RECALL. THIS IS THE SAME PROBLEM THEY HAD WITH THE 3.5L ENGINES THEY USED IN THEIR PRE-2007 HUMMER H3 AND COLORADO. I AM GOING TO WRITE MY CONGRESS REP AND ASK THAT WITH THE PROBLEMS THAT GM IS HAVING RIGHT NOW, THAT THIS ALSO BE MOVED FORWARD AND THAT THEY ORDER AN INVESTIGATION. ANY OTHER HUMMER H3 OWNERS WITH THE SAME PROBLEMS SHOULD DO THE SAME THING. *TR

SMELLED RADIATOR FLUENT WHEN I PARKED INTO THE DRIVE WAY, POPPED THE HOOD AND SAW THAT THE LIQUID SPLASHED ALL OVER THE ENGINE AND PARTS AS WELL AS ON TOP OF THE PLASTIC FAN COVER, WHICH SEEMED ODD. COULDN'T FIND THE LEAK IN THE HOSE. LOOKED AT THE HUMMER FORUM THAT I'M A MEMBER OF AND LORD BEHOLD THERE WAS A BIG TOPIC OF RADIATORS CRACKING AND BREAKING IN THE SAME PLACES WITH THE 2007 MODELS. NO RECALL HAS BEEN ISSUED, SO NO RECALL HAS BEEN SUBMITTED. BUT IT'S A WELL KNOWN DEFECTIVE RADIATOR PROBLEM THAT GM KNOWS ABOUT BUT WON'T RECALL. SO THEY DECIDED TO MAKE A NEW RADIATOR THAT FIXES THE PROBLEM FOR THE 2007 HUMMERS. THE PROBLEM IS THE MIDDLE PIN THAT HOLDS THE RADIATOR RUBS THE NECK AND STARTS A CRACKED UNDER THE STYROFOAM, THUS THE RIGHT DRIVERS SIDE CRACKS IN THE SAME SPOT AS WELL ON THE PLASTIC SIDE. HUNDREDS OF H3 OWNERS HAD THIS HAPPEN TO THEM AND POST PICS AND WHAT NOT, BUT STILL NO RECALL. THIS PROBLEM IS ONGOING AND NOTHING IS BEING DONE. I HAVE SPOKE TO THE HUMMER CUSTOMER SERVICE AND THEY CONTACTED THE LOCAL GM AND THEY SCHEDULED MY SCHEDULED DATE TO TAKE MY H3 IN FEB 17 2014, @ 8 AM AT THE LOCAL GM DEALERSHIP AND HOPEFULLY THEY WILL FIX THIS ISSUE AND NOT CHARGED ME TO FIX DUE TO THE FACT THAT THEY KNOW THE PROBLEM AND HAVE DONE NOTHING TO FIX IT. BUT IT'S BEEN KNOW THAT THEY WILL NOT FIX THE RADIATOR AND THEY SAY IT'S DUE TO CLIMATE WHICH IS FALSE BECAUSE EVERY H3 OWNER HAS IT BREAK IN THE SAME PLACE, AND HAVE SUBMITTED COUNTLESS TICKETS. *TR

TL* THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT STATED THAT THE VEHICLE LOST ACCELERATION POWER. THE CONTACT TOOK THE VEHICLE TO THE DEALER WHERE IT WAS DETERMINED THAT THE VALVE SEALS IN THE SECOND AND FIFTH CYLINDER HEADS HAD FAILED. THE DEALER STATED THAT THE FIFTH CYLINDER HEAD WAS THE MOST DOMINANT AND CAUSED THE MAJORITY OF THE FAILURE. THE CONTACT STATED THAT BOTH CYLINDER HEADS HAD A 70 PERCENT LEAK. THE FAILURE WAS REPORTED TO THE MANUFACTURER. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 65,000 AND THE CURRENT MILEAGE WAS 80,000. *TR

TL* THE CONTACT OWNS A 2007 HUMMER H3. THE CONTACT STATED THAT WHILE DRIVING 50 MPH, EXHAUST FUMES FILLED THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSIS WHERE IT WAS ADVISED TO THE CONTACT THAT THE MANIFOLD GASKET NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATED FAILURE MILEAGE WAS 160,000. *TR