2007 Chevrolet Trailblazer Engine Problems

FUEL TANK LEVELS NOT ACCURATE. YELLOW LIGHT WARNING WHEN TANK IS NEAR FULL CAPACITY . HAPPENS ALL OF THE TIME NOW..

MY 2007 TRAILBLAZER SS HAS A MANIFOLD EXHAUST LEAK. THE BOLTS ARE BROKEN ON THE LEFT FRONT OF THE HEAD AND BACK BOLT OF THE HEAD ON BOTH SIDES. WE ARE GETTING EXHAUST GAS IN TO THE INSIDE OF THE TRUCK. THIS COULD CAUSE CARBON MONOXIDE POISONING. TO THE DRIVER IN THE VEHICLE, THIS IS VERY SERIOUS CONDITION.

TL* THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER. WHILE DRIVING 30 MPH, THE VEHICLE STALLED WITHOUT WARNING AND COMPLETELY LOST POWER. THE VEHICLE WAS TOWED TO SOUTH SHORE PRE-OWNED IN WEYMOUTH, MASSACHUSETTS WHERE IT WAS DIAGNOSED THAT THERE WAS WATER IN THE ENGINE. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 94,000.

TL* THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER. WHILE DRIVING AT 40 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS ABLE TO BE RESTARTED AFTER SEVERAL ATTEMPTS. THE CONTACT STATED THAT THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO THE DEALER, WHERE IT WAS DIAGNOSED THAT THE VEHICLE NEEDED THE ENGINE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE FAILURE MILEAGE WAS 126,000.

THE VEHICLE VIBRATES HEAVILY WHILE IN IDLE. THE CAR WILL BE IN THE DRIVE POSITION AT A STOP. THE CAR ACTS AS IF IT IS ABOUT TO STALL OUT. WHICH PRESENTS A HUGE HAZARD WITH CHILDREN IN THE CAR. WE HAVE REPLACED THE ENGINE MOUNTS,SPARK PLUGS, COILS, BOOTS, INTAKE FLUSH AND PERFORMED ROUTINE MAINTENANCE. I HAVE READ THAT NUMEROUS TRAILBLAZERS HAVE ENCOUNTERED THE SAME ISSUE WITH NO RESOLUTION! MY BIGGEST FEAR IS FOR A CAR TO STALL AND AN INJURY TO OCCUR A A DIRECT RESULT.

TL* THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE TRANSMISSION WOULD NOT SHIFT GEARS PROPERLY AND THE VEHICLE JERKED. THE VEHICLE WAS TAKEN TO A DEALER, WHO DIAGNOSED THAT THE THROTTLE POSITION SENSOR NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 65,000.

WHILE TAKING MY KIDS TO SCHOOL THIS MORNING, THE ENGINE SHUTOFF SHUT OFF WITH NO INDICATION AT ALL. WE WERE STARTING TO SLOW DOWN TO TURN THE CORNER TO HEAD TO THE SCHOOL WHEN THIS INCIDENT OCCURRED. WE HAVE HAD SEVERAL COMPONENTS (BATTERY, IGNITION SWITCH, ALTERNATOR, STARTER RELAY) CHANGED OUT THE FIXED THE ENGINE LIGHT, BUT THE ENGINE CONTINUES TO STALL. I HAVE SEEN OVER 500 OTHER PEOPLE WITH THIS SAME ISSUE AND HAVE NOT SEEN ANYONE WHO HAS HAD IT FIXED YET. *TR

I HAVE A RARE TRAILBLAZER WITH A 5.3L V8. IT IS VERY LOW MILES WITH 41000, OIL CHANGES EVERY 3-4000 MILES AT GM DEALERSHIPS. I AM AN EX DIESEL MECHANIC OF 10 YEARS. I COULD NOT BELIEVE IT A YEAR AGO WHEN THE DEALERSHIP STATED: THAT 1 QUART OF OIL USED IN 2000 MILES WAS NORMAL CONSUMPTION. I HAVE CHECKED OTHER SITES AND MANY OTHERS HAVE THE SAME ISSUE WITH THE 5.3L IN THE 1/2 TONS AND LARGER SUVS THAT THE MOTOR IS STANDARD IN. I HAVE WORKED ON ALMOST EVERY GAS, NATURAL GAS AND DIESEL ENGINE FROM THE 80S-LATE 90S AND ANY MOTOR THAT USES 1/6TH OF ITS OIL IN 1000 MILES AS IT MINE DID WHEN VISITING FAMILY LAST THANKSGIVING IS NOT NORMAL 1 QUART IN 770 MILES. I THOUGHT: WELL MUST HAVE GOTTEN A BAD MOTOR (LUCK OF THE DRAW), IT IS OUT OF WARRANTY DUE TO AGE NOT MILEAGE, AND I CAN BUY A RE-MAN SHORT BLOCK WHEN IT GOES OUT AND CHANGE IT MY SELF. I DECIDED TO CHECK THE WEB IF THERE IS ANY TRAFFIC ON THE PROBLEM. I WAS SURPRISED TO FIND HUNDREDS OF POSTS OF THE SAME PROBLEM, AND GMS LACK OF ABILITY OR DESIRE TO FIX THE PROBLEM. IT DOES NOT TAKE A ROCKET SCIENTIST TO FIGURE OUT THAT GM HAS A PROBLEM WITH THE PISTON RINGS AND VALVE GUIDES LEAKING INTO THE CYLINDER WHEN IN 4 CYL. MODE, CAUSED BY THE SUCTION CAUSED BY THE POWER STROKE (OF THE 4 STOKE CYCLE) WITH BOTH VALVES CLOSED. OIL BURNS OFF CAUSING BUILDUP FURTHER DAMAGING THE ENGINE SENSORS AND CAT. CONVERTER. GM MUST HAVE SOLVED THE PROBLEM, BECAUSE NEW 5.3LS HAVE NOT SHOWN THE SAME ISSUE. TO NOT SAY IT IS NOT A SAFETY ISSUE IS INSANE. MANY RECALLS HAVE BEEN MADE BECAUSE OF AUTOS SUDDENLY COMING TO AN UNEXPECTED STOP. WHAT ELSE WOULD HAPPEN IF YOUR ENGINE RUNS OUT OF OIL AFTER ONLY 1000 MILES OR LESS AND SEIZES? WHAT IF IT HAPPENS ON A HILL WHILE TOWING, DRIVING ACROSS A DESERT, OR IN THE WINTER. LASTLY IF YOU ADD UP ALL 2007 5.3LS ON THE ROAD BURNING 2 QUARTS OR MORE IN 3000 MILES, HOW IS THAT NOT AN ENVIRONMENTAL ISSUE. *TR

THE SERVICE ENGINE LIGHT CAME ON. AS I WAS DRIVING HOME FROM WORK AT NIGHT, THE EXTERNAL AND INTERNAL LIGHTS WOULD DIM AND THEN RETURN TO NORMAL. I LATER FOUND OUT THAT THE FRONT LIGHTS WOULD COMPLETELY GO OUT FOR A BRIEF SECOND OR TWO AND THEN TURN BACK ON. WHEN I GOT HOME, THERE WAS AN ODD FAN/VACUUM NOISE FROM MY ENGINE. THE NOISE WAS COMING FROM THE AIR FILTER AREA. THE NOISE WOULD TURN RANDOMLY START AND STOP AND RUN FOR SEVERAL MINUTES. I UNHOOKED MY BATTERY, BUT MY BATTERY WAS COMPLETELY DRAINED IN THE MORNING AND THE CAR WOULD NOT START. I REPLACED THE BATTERY BUT THE CHECK ENGINE LIGHT WAS STILL ON AND THE NOISE WOULD RANDOMLY START AND STOP, MOST NOTICEABLY WHEN THE VEHICLE WAS TURNED OFF. I TOOK IT TO AN AUTO REPAIR SHOP AND WAS ADVISED THE ISSUE IS THE A.I.R PUMP RELAY - IN-LINE6 AND THE A.I.R SYSTEM PUMP - IN-LINE 6. THE LABOR DESCRIPTION FROM THE AUTO SERVICE STATES "CHECK SERVICE ENGINE SOON LIGHT AND ABNORMAL NOISE FROM ENGINE AREA. PERFORM DIAGNOSIS FAULT CODE P2431 FOR AIR INJECTION SYSTEM. FURTHER TESTING FOUND SYSTEM NOT WORKING AT THIS TIME. FURTHER TESTING FOUND AIR PUMP RELAY CONNECTOR MELTED SHORTED. PROBLEM DUE TO INTERNAL FAILURE TO SECONDARY AIR INJECTION PUMP WORN NEEDS REPLACED. I HAVE MY VEHICLE SCHEDULED TO FIX THIS ISSUE TOMORROW WHEN THE REPAIR FACILITY CAN GET THE PARTS IN. I WAS TOLD THIS WAS A VERY COMMON ISSUE WITH THE TRAILBLAZER. THE AUTO REPAIR MAN ALSO TOLD ME THAT THIS PUTS A HUGE DRAIN ON THE AMPERAGE, THUS CAUSING SAFETY ISSUES OF THE BATTERY DRAINING AND THE VEHICLE NOT STARTING IN POTENTIALLY DANGEROUS SITUATIONS. ADDITIONALLY, WITH THE AIR PUMP RELAY CONNECTOR MELTED AND SHORTED OUT - THIS IS A POTENTIAL FIRE HAZARD. I BELIEVE THIS ISSUE SHOULD BE COVERED UNDER RECALL OR WARRANTY DUE TO THE FREQUENCY, KNOWN ISSUE, AND POTENTIAL HAZARDOUS CONDITIONS. *TR

TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE AT A COMPLETE STOP, THE VEHICLE STALLED WITH THE ILLUMINATION OF THE CHECK ENGINE WARNING LIGHT. THE VEHICLE WAS ABLE TO BE RESTARTED BUT THE WARNING LIGHT REMAINED ILLUMINATED. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHERE THE FAILURE COULD NOT BE REPLICATED. THE CONTACT ALSO MENTIONED THAT THE FAILURE WAS INTERMITTENT. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 53,291 AND CURRENT MILEAGE WAS 59,000.

MY AC IS MALFUNCTIONING AND MY FAN CLUTCH IS OUT OF WHACK. MY BRAKES ARE SQUEALING IT IS HARD FOR ME TO STOP. MY ENGINE SOMETIMES STOPS. I NEED HELP WITH THESE ISSUES AND I HAVE NO MORE TO PAY FOR THESE ISSUES PLAGUING ME. PLEASE HELP ME FIX MY VEHICLE. *TR

TL* THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE DRIVING 50 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT WAS ABLE TO RESTART THE VEHICLE AND PROCEED TO HER DESTINATION. THE CONTACT DID NOT TAKE THE VEHICLE TO A DEALER OR A MECHANIC FOR DIAGNOSTIC TESTING OR REPAIRS. THE FAILURE MILEAGE WAS 80,000.

TL* THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER. THE CONTACT WAS DRIVING 50 MPH AND NOTICED SMOKE COMING FROM UNDER THE HOOD. THE CONTACT WAS ABLE TO STOP THE VEHICLE AND EXITED, JUST AS THE VEHICLE EXPLODED. THE VEHICLE WAS DESTROYED. THERE WERE NO INJURIES. THE FIRE DEPARTMENT WAS CALLED AND A FIRE REPORT WAS FILED. THE CAUSE OF THE FIRE WAS UNKNOWN. THE MANUFACTURER WAS NOTIFIED AND STATED THAT THEY WOULD TAKE A COMPLAINT FOR THE FAILURE BUT PROVIDED NO FURTHER ASSISTANCE. THE FAILURE MILEAGE WAS 68,065.

TL* THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER SS. THE CONTACT STATED THAT THE ENGINE OVERHEATED DUE TO THE TEMPERATURE SENSORS FAILING. THE DEALER WAS NOTIFIED WHO OFFERED NO ASSISTANCE FOR THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 96,000 AND THE CURRENT MILEAGE WAS 100,000.

THE TRAILBLAZER DIED WHEN MY WIFE AND CHILDREN WAS SITTING AT A RED LIGHT AND WHEN SHE STARTED IT BACK THE MOTOR WAS MAKING A LOUD KNOCKING NOISE. SHE PULLED IT TO THE SIDE OF THE ROAD AND CALLED A TOW TRUCK AND HAD IT TOWED INTO A GARAGE. THE MECHANIC SAID THAT THE ENGINE WAS SHOT. THERE WAS NO INDICATION ANYTHING WAS WRONG WHEN IT HAPPENED ALL THE GAUGES WERE SHOWING EVERYTHING TO BE GOOD THERE WAS NO NOISE IN ENGINE OR ANY WARNING LAMPS LIT UP ON THE DASH. WE HAD THE OIL CHANGED JUST 2-3 WEEKS AGO. WE HAVE ONLY HAD THE VEHICLE FOR 8 MONTHS. ALSO, THE DRIVER SIDE WINDOW SWITCH HAS BEEN ACTING UP WHEN YOU PRESS THE SWITCH TO PUT DOWN THE WINDOW IT WILL NOT GO INTO AUTOMATIC DOWN. *TR

TL* THE CONTACT OWNS A 2005 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE AT A COMPLETE STOP, THE VEHICLE STALLED AND THE CHECK ENGINE LIGHT CONTINUOUSLY ILLUMINATED AFTER THE FAILURE. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHERE THE FAILURE COULD NOT BE REPLICATED. THE CONTACT ALSO MENTIONED THAT THE FAILURE WAS INTERMITTENT. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 90,000.

THE FUEL GAUGE LEVEL INDICATOR JUST WENT FROM "FULL" TO "EMPTY", IT JUST WENT THAT FAST. MINUTES BEFORE IT HAD JUST BEEN FILLED AT THE GAS STATION. WHEN STARTING, THE GAUGE RISES THEN FALLS TO EMPTY. ON OCCASIONS THE WARNING MESSAGE, "PLEASE TIGHTEN GAS CAP" COMES ON. NOW MONTHS LATER, SAME PROBLEM; AFTER CONTACTING "GM" HOTLINE, THEY STILL HAVE NOT SHOWN ANY CONCERN. I KEEP TRACK OF MILES DRIVEN SINCE LAST FILL-UP AND GAS USED, SO I KNOW WHEN IT IS TIME TO FILL-UP. I HAVE READ MANY SAME COMPLAINTS, AND I WONDER WHY "GM" HAS NOT ISSUED A RECALL. IT IS NOW 08/21/2012 AND PROBLEM IS STILL ONGOING. CAN YOU PLEASE HELP. PLEASE. "GM" HAS ON NUMEROUS OCCASIONS SUGGESTED THAT THE WIRE HARNESS ON TOP OF THE GAS TANK NEEDS TO BE REPLACED, TO DO SO, REQUIRES A FIVE (5) HOUR VISIT AND THEY EXPECT THE CUSTOMER TO PAY HALF THE COST. PLEASE HELP.

FUEL SENDER/GAUGE DOES NOT FUNCTION. I BOUGHT THIS 07 TRAILBLAZER BRAND NEW AND IT ONLY HAS 31K MILES. PROBLEM STARTED TO OCCUR AROUND 27K MILES AND THE DEALER ADVISED IT WAS NOT COVERED UNDER WARRANTY!!! YOU WOULD THINK WITH 70 COMPLAINTS ABOUT THIS SAME ISSUE, CHEVY WOULD DO SOMETHING ABOUT IT!!! VERY DISAPPOINTING. I JUST WISH THAT WAS THE ONLY PROBLEM...TIRE MONITOR DOESN'T WORK, THE A/C ELECTRICAL SYSTEM FAILED, AND THE CHECK ENGINE LIGHT IS ALWAYS ON. *TR

GAS GAUGE DOES NOT WORK. READS EMPTY EVEN AFTER VEHICLE IS FILLED WITH FUEL. CHECK ENGINE IS ALWAYS ON BECAUSE OF GAUGE PROBLEM. *KB

VEHICLE LIGHTS ALWAYS ON. CHECK ENGINE! GAS GAUGE PAID 600 DOLLARS TO FIX AND STILL CHECK ENGINE LIGHT ON DUE TO EMISSION PROBLEM. CAR HAS 50000 MILES AND IS A LEMON.. *TR