2007 GMC Sierra Engine Problems

We were on the highway going 65 mph and all a sudden a long bang happened. After that the anti skid light came on causing the truck to drive hard and lack of power. The engine had a sound that didn’t seam right.

Driving on Interstate at a speed of 70 when truck lost power. Check engine light came on and other lights on dash came on also. 2007 with 160k miles original barely driven. This year should be a part of the Class Action Suit

Driving on Interstate at a speed of 65, truck lost power. Check engine light and all lights on dash appeared I initially mistakenly reported the wrong mileage of 160k. My vehicle only has 135k miles on it

The truck in question has LESS than 163k miles and burn a quart of oil a day, loss of power. There HAS been a recall on this SAME MOTOR 5.3 but while this year was ACKNOWLEDGED it was NOT a part of a recall EXCEPT for passenger side air bag that was replaced at dealership and damaged dash in process. Not it is NON DRIVE ABLE due to oil pressure issues

TL* THE CONTACT OWNS A 2007 GMC SIERRA 1500. THE CONTACT STATED WHILE DRIVING 35 MPH, THE VEHICLE STARTED JERKING. THE CONTACT STATED THAT THERE WAS NO WARNING LIGHT ILLUMINATED. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. A DEALER WAS NOT CONTACTED. THE MANUFACTURER HAD NOT BEEN INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 120,000. *DT

TL* THE CONTACT OWNS A 2007 GMC SIERRA 1500. WHILE DRIVING 70 MPH, THE ENGINE POWER REDUCED WARNING INDICATOR ILLUMINATED AND THE VEHICLE DECELERATED TO 30 MPH. THE DRIVER QUICKLY COASTED OVER TO THE SIDE OF THE ROAD, POWERED OFF THE ENGINE, AND WAITED FOR A FEW MINUTES. WHEN THE VEHICLE WAS RESTARTED, THE VEHICLE RESUMED NORMAL OPERATION. THE FAILURE RECURRED 3 TO 5 MILES DOWN THE ROAD. AFTER EACH FAILURE, THE CONTACT HAD TO COAST TO THE SIDE OF THE ROAD AND POWER OFF THE ENGINE. THE FAILURE OCCURRED FOR 30 MILES UNTIL THE CONTACT ARRIVED HOME. THE CONTACT SCHEDULED AN APPOINTMENT WITH AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOTIFIED AND DID NOT ASSIST. THE DEALER WAS NOT CONTACTED. THE APPROXIMATE FAILURE MILEAGE WAS 57,000.

MY TRUCK WAS DIAGNOSED WITH BAD ROCKER ARMS CAUSING MY TRUCK TO LOSE POWER AND EVENTUALLY BREAKDOWN.

ATTEMPTED TO START VEHICLE. FAILED TO START. WHEN TURNING THE IGNITION, ACTED AS IF THERE WAS A DEAD BATTERY. ATTEMPTED TO START AGAIN, BURNING SMELL AND SMOKE FROM THE ENGINE COVER. TOWED TO DEALERSHIP FOR DIAGNOSIS. SERVICE ADVISES THAT MAIN BEARING WAS THROWN, SEIZING THE ENGINE AND SMOKE WAS FROM THE STARTER BURNING UP. ENGINE HAS 87,000 MILES. ALSO BURNS APPROXIMATELY 1 QUART OIL EVERY 1,000 MILES. VEHICLE PURCHASED OCTOBER 2015. DEALER ADVISES REPLACE WITH NEW ENGINE. REPLACEMENT IN PROGRESS. DATE OF LOSS 23 JANUARY 2016. OIL LEVEL WAS FULL.

USES OIL..LOTS OF IT. AND WITH IT USING OIL SEEMS SLUGGISH..NO PASSING SPEED. BURNS 1 QUART EVERY 2000 MILES. LOTS OF OWNERS ARE EXPERIENCING THE SAME ISSUES WITH OIL CONSUMPTION AND EXCELERATION

OUR ENGINE STOPPED WORKING. HAD IT TOWED TO A SHOP THEN ONTO A DEALERSHIP TO REPLACE THE MOTOR.

TL* THE CONTACT OWNS A 2007 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 45 MPH, THERE WAS A REDUCTION IN THE ENGINE POWER EVEN THOUGH FORCE WAS APPLIED TO THE ACCELERATOR PEDAL. THE VEHICLE WAS MERGED TO THE SIDE OF THE ROAD WHERE THE ENGINE WAS TURNED OFF. THE VEHICLE RESTARTED AND RESUMED IN OPERATION NORMALLY. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHO REPLACED THE COMPUTER MOTHERBOARD. THE FAILURE RECURRED ONE MONTH AFTER THE REPAIR WAS PERFORMED. THE VEHICLE HAD NOT BEEN REPAIRED FOR RECENT FAILURE. THE MANUFACTURER WAS NOT NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 124,000. THE VIN WAS UNAVAILABLE.

I HAD A 2007 GMC SIERRA. THROUGHOUT THE LIFE OF THIS VEHICLE I'VE ASK WHY THE 5.3L MOTOR BURNS A QUART OF OIL OR MORE DURING OIL CHANGES. CONSTANTLY ASK MULTIPLE DEALERS TO INSPECT AND THEY CONTINUED TO STATE THAT'S JUST THIS ENGINE AND WOULD NEVER MARK PAPERWORK TO CHECK. ALWAYS STATED IT WILL BURN A LITTLE OIL IN BETWEEN OIL CHANGES. I CONTINUED TO BELIEVE THIS AS OTHER OWNERS OF THIS VEHICLE TYPE TOLD ME SAME INFORMATION. ON OR AROUND FEB 7, 2014 ENGINE DROPPED CYLINDERS AND LOST MOST POWER TO VEHICLE WHILE ON INTERSTATE. I'M CONCERNED AS IT LOST POWER AND DRAMATICALLY SLOWED BUT ALSO THAT I'VE HAD A FAULTY PRODUCT SINCE BUYING AND NO RECALL WAS ISSUED. I MAINTENANCED THIS VEHICLE PROPERLY. AFTER TELLING ME THE COST TO REPLACE THE 2 CYLINDERS OR ENGINE I HAD A DECISION TO MAKE. THIS ENGINE SHOULD BE RECALLED AS IT HAS MAJOR PROBLEMS. UNFORTUNATELY GM DIDN'T RECALL THE ENGINE AND FIX IT PROPERLY WITHIN MY WARRANTY TIMEFRAME. I EVEN BOUGHT EXTENDED WARRANTY. NOW I'VE HAD TO BUY NEW TRUCK WHICH I WOULDN'T HAVE BOUGHT IF ENGINE WAS STILL RUNNING IN 2007 GMC TRUCK. THESE "ECO" ENGINES NEED TO BE REVIEWED. *TR

TL* THE CONTACT OWNS A 2007 GMC SIERRA 1500. WHILE DRIVING 65 MPH, THE CONTACT STATED THAT THE VEHICLE SHUT OFF WITHOUT WARNING. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHO INFORMED THE CONTACT THAT THE CYLINDER HEADS WERE CRACKED AND LEAKED COOLANT INTO THE ENGINE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE INCIDENT. THE APPROXIMATE FAILURE MILEAGE WAS 180,000.

TL* THE CONTACT OWNS A 2007 GMC 1500. THE CONTACT STATED WHILE DRIVING THE VEHICLE LOST ALL ELECTRICAL POWER WITHOUT WARNING. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE TECHNICIAN WAS UNABLE TO DETERMINE THE CAUSE OF THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 80,000. THE CURRENT MILEAGE WAS 127,000.

TL* THE CONTACT OWNS A 2007 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING 10 MPH, THE VEHICLE STARTED SMOKING FROM UNDER THE HOOD. THE VEHICLE WAS MERGED ONTO THE SHOULDER AND THEN EXPLODED IN FLAMES. THERE WERE NO INJURIES. BOTH THE POLICE AND FIRE DEPARTMENTS WERE NOTIFIED, AND A FIRE REPORT WAS FILED. THE ORIGIN OF THE FIRE WAS UNKNOWN. THE VIN WAS UNAVAILABLE. NEITHER THE DEALER NOR THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 85,000.

2007 GMC CREWCAB SIERRA WITH 5.3 LITER ,AUTO, HAS HAD THREE PLASTIC FUEL LINE FAILURES IN LAST TWO YEARS. AFTER DETECTING A FUEL ODOR, GAS WAS FOUND TO BE DRIPPING/SPRAYED IN THE AREA OF THE EXHAUST PIPE. APPEARS TO BE A FIRE RISK. SAME TRUCK WAS DELIVERED WITH WARPED FLEX PLATE, AND HAS EXPERIENCED MAJOR AND REPEATED A/C FAILURES. THIS TRUCK IS DRIVEN BY A 50'S FEMALE, HAS NEVER TOWED, BEEN OFF ROAD ETC. IT IS AT A REPAIR SHOP BUT HAS ABOUT 35000 MILES ON IT. *TR

5.3 VORTEC WITH AFM IS NOW BURNING OIL AT THE RATE OF 1 QT EVERY 800-1200 MILES. THE MORE HIGHWAY DRIVING THE MORE OIL IT BURNS. GM IS VERY AWARE OF THE ISSUE AND JUST REFUSES TO MAKE THE PROPER REPAIRS VOLUNTEERLY, BUT IS MORE THAN HAPPY TO PUT THE CUSTOMER THROUGH ALL KINDS OF BS. WILL START THE OIL CONSUMPTION TEST, TOMORROW. IF THAT FAILS THE DEALER TOLD ME THEY WILL TRY THE OIL SHIELD FIX AND IF THAT FAILS, THEY WILL REPLACE PISTONS AND RINGS. SEEMS LIKE A HUGE WASTE OF TIME WHEN THEY KNOW THERE IS A MAJOR PROBLEM. *TT

I OWN A 2007 GMC SIERRA 1500 CREW CAB. I HAVE SOME ISSUES WHEN I START MY TRUCK IN THE MORNINGS, I GET A TAPPING NOISE AS IF THERE ARE LIFTERS STUCK OR NOT GETTING SUFFICIENT OIL. I HAVE ALWAYS USED THE RECOMMENDED AC OIL FILTERS THAT I PURCHASE FROM THE LOCAL DEALERSHIP PARTS CENTER SO I KNOW THAT THE FILTER IS NOT THE PROBLEM. I AM A MECHANIC SO I KNOW WHAT AN ENGINE IS SUPPOSED TO SOUND LIKE. THE NOISE WILL CONTINUE UNTIL THE ENGINE WARMS UP WHICH IS APPROXIMATELY 10-15 MINUTES AND IS VERY ANNOYING. I AM CURRENTLY DEPLOYED TO KANDAHAR, AFGHANISTAN IN SUPPORT OF OPERATION ENDURING FREEDOM AND SCHEDULE TO RETURN TO THE US IN LATE MARCH 2012. I SPOKE TO MY WIFE TODAY AND SHE SAID THAT EVERY TIME SHE START THE VEHICLE FOR THE FIRST TIME THE NOISE IS THERE. I WOULD APPRECIATE IF YOU COULD ANSWER MY QUESTION CONCERNING THIS ISSUE. I LIKE THE TRUCK BUT THE ENGINE NOISE HAS TO GO. LIKE I SAID BEFORE I HAVE BEEN A MECHANIC FOR OVER 30 YEARS ON CONSTRUCTION EQUIPMENT AND AUTOMOTIVE EQUIPMENT FOR THE US ARMY. PLEASE DO NOT TRY TO GIVE ME A SHORT ANSWER TO TRY TO GET RID OF ME, I KNOW BETTER. THE CRANKCASE IS FULL OF OIL TO THE CORRECT LEVEL ON THE DIPSTICK AND I USE THE RECOMMENDED 5W30 OIL. WHY AM I HAVING THIS ISSUE? NOTE: I AM DEPLOYED SO PLEASE DON'T TRY TO CONTACT ME BY PHONE. *TR

#SB-10-06-01-008 (PROBLEM) I AM CONCERNED WITH OUR SAFETY DUE TO THE MECHANICAL MOTOR PROBLEM WITH THE CYLINDERS. GM WARRANTY # [XXX] I HAVE HAD OIL CONSUMPTION TEST DONE AND THEY ORDERED PARTS AND TOLD ME TO BRING IT IN. WHEN BRINGING IT IN TO "PHILIPS BUICK GMC" FRUITLAND PARK FLORIDA, I WAS TOLD THAT I WOULD BE ABLE TO GET A COMPARABLE VEHICHLE IN EXCHANGE WHILE MINE IS WORKED ON. I GET THEIR AND THEY TRY TO GIVE ME A COMPACT SUV. I AM 6'2", 200LBS. AND DRIVE A 2007 4 DOOR SIERRA 1500 THAT I USE FOR MY COMMERCIAL BUSINESS EVERY DAY FOR WORK. THEY WERE AWARE OF THIS. I SHUT MY BUSINESS DOWN TO HALF OF WHAT IT WAS IN ORDER TO BE ABLE TO AFFORD LOOSING MY TRUCK FOR A COUPLE DAYS TO WARANTY REPAIRS. I WAS TOLD I WOULD GET A FULL SIZED TRUCK OR SUV. I STILL HAVE TO HAUL PRODUCT FOR MY BUSINESS JUST TO KEEP IT 50% RUNNING FOR THOSE COUPLE DAYS. I ALSO HAVE 4, 200+LBS GUYS TO HAUL AROUND FOR WORK AS WELL, AND A SPECIAL NEEDS DAUGHTER WHO NEEDS THE ADITIONAL SPACE OF A FULL SIZED VEHICHLE. I PAID OVER $40,000 FOR MY TRUCK. ITS NOT MY FAULT THAT I HAVE A WARRANTY ISSUE AND IT HAS TO BE WORKED ON. SO MY BUSINESS, FAMILY, AND SELF SHOULDNT BE THE ONE WHO IS INCONVIENANCED FOR A GM WARRANTY ISSUE. GM NEEDS TO DO WHAT IT TAKES TO MAKE THIS RIGHT. I SPOKE TO GM AND THEY TOLD ME TO GO RENT ONE MYSELF AND PAY MYSELF. THEY SAID THEY WOULD ONLY GIVE ME $35 DOLLARS A DAY FOR REIMBURSEMENT. WITH THIS HAPPENING GM IS MAKING IT IMPOSSIBLE FOR ME TO WORK AND GET MY TRUCK FIXED AT THE SAME TIME. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

TL*THE CONTACT OWNS A 2007 GMC SIERRA. THE CONTACT STATED THAT THE VEHICLE WAS LOSING OIL. THE DEALER WANTED THE CONTACT TO ALLOW THEM TO CHECK THE OIL EVERY 1000 TO 3000 MILES TO DIAGNOSE THE VEHICLES OIL CONSUMPTION. THE MANUFACTURER THEN TOLD THE CONTACT THAT ALL GM VEHICLES USE EXCESSIVE AMOUNTS OF OIL. THE CONTACT WAS CONCERNED ABOUT THE EXCESSIVE OIL USE AND WHY HE WAS NOT ADVISED WHEN THE VEHICLE WAS PURCHASED. THE MANUFACTURER SENT THE CONTACT A LETTER STATING THAT THE VEHICLE WAS DESIGNED TO USE 1 QUART OF OIL EVERY 2000 MILES. THE FAILURE MILEAGE WAS 50000 AND THE CURRENT MILEAGE WAS 70000.