2003 GMC Yukon Xl 1500 Engine Problems

TL* THE CONTACT OWNS A 2003 GMC YUKON XL 1500. THE CONTACT MENTIONED THAT THE PREVIOUS OWNER OF THE VEHICLE EXPERIENCED A FAILURE WITH THE REDUCED ENGINE POWER WARNING INDICATOR. THE DEALER REPLACED THE THROTTLE BODY, BUT THE FAILURE CONTINUED BEFORE THE CONTACT OWNED THE VEHICLE. THE CONTACT EXPERIENCED THE WARNING LIGHT RANDOMLY FLASHING, WHICH DRASTICALLY REDUCED THE SPEED TO LESS THAN 20 MPH. THE CONTACT HAD TO CONSTANTLY TURN OFF AND RESTART THE VEHICLE, BUT THE FAILURE CONTINUED TO PROGRESS RANDOMLY. THE DEALER REPLACED THE WIRING, 02 SENSOR, THE THROTTLE BODY WAS REPLACED A SECOND TIME, THE BATTERY, AND THE ALTERNATOR. THE REPAIRS FAILED TO PROVIDE A PERMANENT SOLUTION AND THE WARNING LIGHT CONTINUED TO ILLUMINATE FOR THE REDUCED ENGINE POWER. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 188,000.

NHTSA ID

10874699

Incident

Mar 10, 2016

Mileage

188,000 mi

REDUCED ENGINE POWER MODE ON HWY AT 70 MPH

NHTSA ID

10818211

Incident

Dec 15, 2015

Mileage

250,000 mi

I KEEP HAVING THE DISPLAY SAY "REDUCED ENGINE POWER". I'LL BE DRIVING ON THE HIGHWAY, DOING 65 IN RUSH HOUR TRAFFIC, WHEN ALL OF THE SUDDEN THE ACCELERATOR NO LONGER ACCELERATES AND IT DISPLAYS "REDUCED ENGINE POWER" ON THE GAUGE CLUSTER DISPLAY. FROM WHAT I'VE SEEN ONLINE IT APPEARS TO BE AN ISSUE WITH THE THROTTLE POSITION SENSOR ON THOUSANDS OF OTHER SIMILAR VEHICLES WITH THE SAME ENGINE, CHEVY SUBURBAN'S, SILVERADO'S, TAHOE'S, ETC. I REPLACED THE THROTTLE POSITION SENSOR AND THE HARNESS (BECAUSE I HEARD THE HARNESS MIGHT ALSO BE AN ISSUE) AND I AM STILL HAVING THE SAME PROBLEM WITH MY TRUCK. IT HAS DONE IT OVER A DOZEN TIMES ON ONE TRIP BACK FROM WORK (80 MILES FOR ME). I HAVE TO PULL OVER TO THE SIDE OF THE ROAD (IF POSSIBLE) AND TURN OFF THE TRUCK, THEN WAIT A SHORT PERIOD OF TIME, THEN TURN THE TRUCK BACK ON. THIS USUALLY FIXES THE ISSUE, BUT IT DID NOT HELP ME WHEN IT HAPPENED TO ME IN THE TUNNEL AND I WAS GOING 5 MPH (TOP SPEED DURING THE "REDUCED ENGINE POWER" MODE, ONCE YOUR DRIFTING STOPS (BECAUSE YOU DRIFT, IT DOESN'T ENGAGE THE BRAKES). I WAS EXTREMELY WORRIED THAT I WOULDN'T MAKE IT OUT OF THE TUNNEL WITHOUT GET REAR ENDED, AND ONCE I MADE IT OUT, I WAS JUST OUTSIDE OF THE TUNNEL AWAITING ROADSIDE ASSISTANCE, IT WAS VERY FRIGHTENING, WITH MY DAUGHTER IN THE CAR.

NHTSA ID

10763770

Incident

Sep 14, 2015

WHILE DRIVING POSTED SPEED ON EXPRESSWAY VEHICLE SUDDENLY SHUT OFF. LEAVING NO POWER STEERING NO POWER BRAKES. I SEE MANY COMPLAINTS ON YOUR WEBSITE AS WELL AS ONLINE. ARE YOU DOING ANYTHING ABOUT THIS ISSUE? IT IS THE SAME ISSUE THAT YOU ARE CURRENTLY REQUIRING GM TO RECALL OVER 1 MILLION VEHICLES FOR. YOUR CURRENT RECALL ONLY GOES BACK TO THE 2009 MODELS. WHY ARE YOU NOT REQUIRING ALL GM VEHICLES RECALLED SINCE 1996? THEY ALL HAVE THE SAME KEY LOCK SYSTEM AND SAME ABS SYSTEMS BOTH OF WHICH SEEM TO CONTRIBUTE TO OR CAUSE THE PROBLEM. IF A VEHICLE IS BUILT WITH A SAFETY HAZARD DOES THE FACT THAT IT IS OLDER MEAN THAT IT IS NO LONGER A MANUFACTURER'S RESPONSIBILITY TO REPAIR IT? SINCE THE GOVERNMENT OWNS GM HOW ARE YOU AFFECTED IN INITIATING A RECALL? THE GOVERNMENT DOES NOT ALLOW OTHER COMPANIES TO POLICE THEMSELVES, YET IS THAT NOT WHAT YOU ARE DOING WITH GM? *TR

NHTSA ID

10632320

Incident

May 1, 2013

Mileage

149,000 mi

DRIVING DOWN THE HIGHWAY AND THE ENGINE SHOWS REDUCED ENGINE POWER LIGHT. ENGINE SHUTS DOWN AND NOT ABLE TO DRIVE OVER 10 MPH. I UNDERSTAND THAT THIS IS A WIDESPREAD PROBLEM ON GMC VEHICLES AND IN MY OPINION IS A VERY SERIOUS SAFETY HAZARD. *TR

NHTSA ID

10502150

Incident

Jan 11, 2012

Mileage

106,000 mi

WHEN DRIVING THE VEHICLE IT DRIVES FINE BUT WHEN IT GETS TO SPEEDS AROUND 50-60 IT WILL COMPLETELY SHUT OFF I HAVE TO PUT IT ON N AND TURN THE KEY ALL THE WAY BACK AND THEN TRY STARTING IT AGAIN. AFTER IT TURNS OFF THE FIRST TIME THEN IT WILL START TURNING OFF MORE RANDOMLY. I HAVE BEEN READING ONLINE AND IT SEEMS TO BE A KNOWN ISSUE WITH THESE TRUCKS AROUND THE SAME YEAR. *TR

NHTSA ID

10486457

Incident

Nov 15, 2012

Mileage

156,000 mi

HTTP://TOWNHALL.EDMUNDS.COM/DIRECT/VIEW/.F0E807E/115 HTTP://WWW.GMINSIDENEWS.COM/FORUMS/F31/2003-YUKON-XL-REDUCED-POWER-ISSUE-HELP-90910/ HTTP://WWW.JUSTANSWER.COM/GM/5BFXF-GMC-2003-GMC-YUKON-5-3-MOTOR-CODE-P1518.HTML HTTP://WWW.CHEVYAVALANCHEFANCLUB.COM/CAFCNA/INDEX.PHP?TOPIC=43119.0;WAP2 PLEASE CHECK OUT THESE LINKS AS I HAVE BEEN SEARCHING FOR A FIX FOR MY "REDUCED ENGINE POWER" ISSUE WITH MY YUKON. I'VE COME ACROSS SEVERAL OTHERS WITH THE SAME ISSUE. MOST OF WHICH HAVE TAKEN THE ISSUE BACK TO GM DEALERS, WHO GET NO SUPPORT FOR THE PROBLEM FROM THE HOME OFFICE. I BELIEVE THIS COULD BE A VERY DANGEROUS ISSUE. THE ISSUE ITSELF IS THE TRUCK KICKS INTO "REDUCED ENGINE POWER" MODE AND THEN IT DOES NOT GO ANY FASTER THAN IDLE WHICH MEANS IT ALL OF THE SUDDEN REDUCES THE SPEED TO 5 MPH MAXIMUM AS WELL AS THE POWER STEERING GOES OUT AND THE ABS BRAKES. THAT IS VERY DANGEROUS IF YOU ARE ON THE HIGHWAY. PEOPLE HAVE BEEN TROUBLESHOOTING THE ISSUE WITH NO SOLID FIXES FROM WHAT I CAN FIND. I BELIEVE GM SHOULD COME UP WITH A FIX SO THAT ISN'T A DANGEROUS HAZARD TO CONSUMERS AND OWNERS OF WHAT LOOKS LIKE THERE 2003 MODEL YEARS, IT SEEMS TO BE MOSTLY THERE 2003 MODEL YEARS. GM DOESN'T SEEM TO WANT TO RECOGNIZE THIS AS AN ISSUE. PLEASE HELP US CONSUMERS OUT, WE WOULD JUST LIKE THIS PROBLEM SOLVED. THANK YOU VERY MUCH. *TR

NHTSA ID

10460326

Incident

Apr 2, 2012

THIS IS THE SECOND TIME FOR THIS PROBLEM TO OCCUR WITH THIS VEHICLE. I FILED A COMPLAINT ( 10398842 ) WITH YOUR DEPARTMENT ON 05/03/2011. SINCE THAT DATE, WE DROVE THE VEHICLE TO DALLAS, TX FOR A CONVENTION WITH NO VEHICLE PROBLEMS. THEN ON JUNE 5TH, WE WERE RETURNING FROM HOUSTON WHEN THE VEHICLE WITHOUT ANY WARNING GAVE A MESSAGE THAT THE ENGINE WAS GOING TO REDUCED POWER WHILE WE WERE DRIVING IN TRAFFIC. WE HAD TO WORK OUR WAY TO A SAFE AREA TO PARK BECAUSE WE WERE A HAZARD TO OTHER DRIVERS. THIS AFTERNOON I CALLED GENERAL MOTORS TO GET SOME RESPONSE TO THIS PROBLEM. I WAS TOLD AGAIN THAT THE ENGINE WAS PROTECTING ITSELF FROM DAMAGE. AGAIN, I ASKED IF IT WAS MORE IMPORTANT TO PROTECT THE ENGINE THAN THE OCCUPANTS, THE REPRESENTATIVE WAS RATHER TESTY ABOUT THE ISSUE. THERE WAS NO RESPONSE WHEN I SAID THAT NO AUTOMOBILE IN AMERICA SHOULD SHUT DOWN IN TRAFFIC FOR A NON EMERGENCY. ESPECIALLY SINCE THE DRIVER LOOSES CONTROL OF THE OPERATION OF THE VEHICLE. I HAVE A PICTURE OF THE INSTRUMENT CLUSTER DURING THE REDUCED POWER INTERVAL WHICH SHOWS THAT ALL GAUGES WERE NORMAL SO THERE WAS NO REASON TO EXPECT ANY ISSUES WITH THE VEHICLE. THE ENGINE WAS AT 500 RPM AND WOULD NOT GAIN SPEED. THIS IS CAUSING US TO FEAR DRIVING THIS VEHICLE. IN ANY CASE, I CANNOT SEE ANY REASON FOR ANY VEHICLE ON THE AMERICAN ROADS TO BE UNDER THE CONTROL OF ITSELF WHILE IN TRAFFIC. THE PASSENGERS SHOULD BE THE PRIMARY CONCERN. I HOPE YOU CAN GET TO THE BOTTOM OF THIS BEFORE AN ACCIDENT OCCURS WITH THIS VEHICLE. IF THERE ISN'T A CURRENT RECALL ON THIS VEHICLE FOR THIS PROBLEM, SHOULD THERE BE? THIS IS A LOW MILEAGE WELL MAINTAINED VEHICLE. *TR

NHTSA ID

10405982

Incident

Jun 5, 2011

Mileage

72,494 mi