High Severity Issue
This component has been associated with crashes, fires, or deaths.
This Problem Across All Years
THERE IS AN ERROR MESSAGE THAT DISPLAYS ON THE DASH FOR MYSELF AND THOUSANDS OF OTHERS WHO OWN GMC/CHEVY TRUCKS WITH THESE MOTORS. THEY HAVE A DEFECTIVE THROTTLE POSITION SENSOR WITH THE TRUCK WHERE IT SAYS "REDUCED ENGINE POWER". I'VE FOUND 2 TECHNICAL SERVICE BULLETINS THAT SOMEWHAT ADDRESS THE ISSUE, BUT MANY PEOPLE TAKE THEIR TRUCKS TO MECHANICS AND DEALERSHIPS TO GET THE ISSUE FIXED AND SPEND THOUSANDS OF DOLLARS IN REPAIRS AND TROUBLESHOOTING TO GET THE ISSUE RESOLVED, TO NO AVAIL. THE 2 TECHNICAL SERVICE BULLETINS THAT I FOUND WERE #PIP3089B (DATED 10/31/2006) AND #PIP3042A (DATED 8/30/2004). I'VE SEEN ON MANY MANY FORUM POSTS ABOUT THIS ISSUE AND POSSIBLE FIXES, WHICH WHEN I READ DEEPER INTO THEM, SEEM TO NOT BE TRUE FIXES.
THERE IS AN ERROR MESSAGE THAT DISPLAYS ON THE DASH FOR MYSELF AND THOUSANDS OF OTHERS WHO OWN GMC/CHEVY TRUCKS WITH THESE MOTORS. THEY HAVE A DEFECTIVE THROTTLE POSITION SENSOR WITH THE TRUCK WHERE IT SAYS "REDUCED ENGINE POWER". I'VE FOUND 2 TECHNICAL SERVICE BULLETINS THAT SOMEWHAT ADDRESS THE ISSUE, BUT MANY PEOPLE TAKE THEIR TRUCKS TO MECHANICS AND DEALERSHIPS TO GET THE ISSUE FIXED AND SPEND THOUSANDS OF DOLLARS IN REPAIRS AND TROUBLESHOOTING TO GET THE ISSUE RESOLVED, TO NO AVAIL. THE 2 TECHNICAL SERVICE BULLETINS THAT I FOUND WERE #PIP3089B (DATED 10/31/2006) AND #PIP3042A (DATED 8/30/2004). I'VE SEEN ON MANY MANY FORUM POSTS ABOUT THIS ISSUE AND POSSIBLE FIXES, WHICH WHEN I READ DEEPER INTO THEM, SEEM TO NOT BE TRUE FIXES.
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.
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.
VEHICLE HAS BEEN SERVICED SEVERAL TIMES SINCE FIRST OCCURRENCE IN SEPTEMBER 2014. "REDUCED ENGINE POWER" AND SERVICE ENGINE SOON SIGNALS APPEAR ON VEHICLE PANEL CAUSING ENGINE POWER TO BE REDUCED IN A MATTER OF SECONDS. HAS HAPPENED TO ME GOING 10MPH, 55MPH, AND 70MPH ON HIGHWAY, CAUSING A NEAR REAR COLLISION BECAUSE I LOST POWER SO QUICKLY. I HAVE HAD IT SERVICED 6 OR 7 TIMES SINCE SEPTEMBER 2014 AND THIS ISSUE IS NOT GETTING RESOLVED. THROTTLE BODY SENSOR REPLACED TWICE, THROTTLE BODY HARNESS REPLACED, ALL WIRES, AND SENSORS HAVE BEEN CLEANED AND THOROUGHLY INSPECTED. REDUCED ENGINE POWER OCCURS WEEKLY EVEN AFTER BEING SERVICED. *TR
VEHICLE HAS BEEN SERVICED SEVERAL TIMES SINCE FIRST OCCURRENCE IN SEPTEMBER 2014. "REDUCED ENGINE POWER" AND SERVICE ENGINE SOON SIGNALS APPEAR ON VEHICLE PANEL CAUSING ENGINE POWER TO BE REDUCED IN A MATTER OF SECONDS. HAS HAPPENED TO ME GOING 10MPH, 55MPH, AND 70MPH ON HIGHWAY, CAUSING A NEAR REAR COLLISION BECAUSE I LOST POWER SO QUICKLY. I HAVE HAD IT SERVICED 6 OR 7 TIMES SINCE SEPTEMBER 2014 AND THIS ISSUE IS NOT GETTING RESOLVED. THROTTLE BODY SENSOR REPLACED TWICE, THROTTLE BODY HARNESS REPLACED, ALL WIRES, AND SENSORS HAVE BEEN CLEANED AND THOROUGHLY INSPECTED. REDUCED ENGINE POWER OCCURS WEEKLY EVEN AFTER BEING SERVICED. *TR
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
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
WHEN STARTING MY 2003 GMC YUKON THE DASH SAYS REDUCED ENGINE POWER..IT WON'T GO OVER 15 MPH....IT HAPPENS EVERYDAY! I HAVE TO KEEP RESTARTING IT AND LET IT GET WARM BEFORE I CAN GO ANYWHERE. IF THIS HAPPENS WHILE I AM DRIVING IT, AND SOMEONE HITS ME I WILL SUE GM, AS I HAVE BEEN A LOYAL GM CUSTOMER FOR 35 YRS...IF YOU READ ALL THE COMPLAINTS ON THE WEB ABOUT THE SAME PROBLEM THEN YOU WOULD DEFINITELY ISSUE A RECALL BEFORE SOMEONE GETS KILLED. *TR
WHEN STARTING MY 2003 GMC YUKON THE DASH SAYS REDUCED ENGINE POWER..IT WON'T GO OVER 15 MPH....IT HAPPENS EVERYDAY! I HAVE TO KEEP RESTARTING IT AND LET IT GET WARM BEFORE I CAN GO ANYWHERE. IF THIS HAPPENS WHILE I AM DRIVING IT, AND SOMEONE HITS ME I WILL SUE GM, AS I HAVE BEEN A LOYAL GM CUSTOMER FOR 35 YRS...IF YOU READ ALL THE COMPLAINTS ON THE WEB ABOUT THE SAME PROBLEM THEN YOU WOULD DEFINITELY ISSUE A RECALL BEFORE SOMEONE GETS KILLED. *TR
WHEN TRAVELING AT ANY RATE OF SPEED, THE REDUCE ENGINE POWER LIGHT COMES ON AT I LOSE ALL POWER. I MUST TRY AND PULL OVER AT A SAFE PLACE, STOP THE CAR, TURN OFF IGNITION AND WAIT 10-15 SECOND BEFORE STARTING AND JUST HOPE IT WILL RETURN TO NORMAL MODE. THIS CAN HAPPEN MANY TIMES IN ONE DAY AND THEN IT MAY NOT HAPPEN AT ALL FOR LONG PERIODS OF TIME. VERY DANGEROUS! I HAVE BEEN DRIVING 70 MPH AND HAD TO IMMEDIATELY TRY AND PULL OVER OUT OF SPEEDING TRAFFIC, ONTO A SHOULDER AND STOP MY CAR WITH MY CHILDREN. *TR
WHEN TRAVELING AT ANY RATE OF SPEED, THE REDUCE ENGINE POWER LIGHT COMES ON AT I LOSE ALL POWER. I MUST TRY AND PULL OVER AT A SAFE PLACE, STOP THE CAR, TURN OFF IGNITION AND WAIT 10-15 SECOND BEFORE STARTING AND JUST HOPE IT WILL RETURN TO NORMAL MODE. THIS CAN HAPPEN MANY TIMES IN ONE DAY AND THEN IT MAY NOT HAPPEN AT ALL FOR LONG PERIODS OF TIME. VERY DANGEROUS! I HAVE BEEN DRIVING 70 MPH AND HAD TO IMMEDIATELY TRY AND PULL OVER OUT OF SPEEDING TRAFFIC, ONTO A SHOULDER AND STOP MY CAR WITH MY CHILDREN. *TR
THE SPEEDOMETER ON MY 2003 YUKON XL DISPLAYS TOTALLY ERRONEOUS READINGS. JUDGING FROM ONLY THE PEOPLE WHO HAVE COMPLAINED ABOUT THIS CONDITION ON SEVERAL MAKES OF GM VEHICLES THIS ISSUE SHOULD BE ADDRESSED WITH A RECALL.*AK
THE SPEEDOMETER ON MY 2003 YUKON XL DISPLAYS TOTALLY ERRONEOUS READINGS. JUDGING FROM ONLY THE PEOPLE WHO HAVE COMPLAINED ABOUT THIS CONDITION ON SEVERAL MAKES OF GM VEHICLES THIS ISSUE SHOULD BE ADDRESSED WITH A RECALL.*AK
MY SPEEDOMETER HAS BEEN STICKING. SOMETIMES IT RESETS SOMETIMES IT DOESN'T. RECENTLY IT HAS BEEN STUCK PAST THE 120 MPH. REPAIR SHOPS RECOMMEND TAKING IT TO THE DEALER FOR SERVICE BUT HAVE NOT DONE SO YET. THIS HAS BEEN HAPPENING OFF AND ON FOR AT LEAST 4 MONTHS. *JB
MY SPEEDOMETER HAS BEEN STICKING. SOMETIMES IT RESETS SOMETIMES IT DOESN'T. RECENTLY IT HAS BEEN STUCK PAST THE 120 MPH. REPAIR SHOPS RECOMMEND TAKING IT TO THE DEALER FOR SERVICE BUT HAVE NOT DONE SO YET. THIS HAS BEEN HAPPENING OFF AND ON FOR AT LEAST 4 MONTHS. *JB