NHTSA Complaint #11338482 — 2016 NISSAN TITAN

I LEFT MY HOME ON A 1300-MILE ROUND TRIP FROM AR TO KY. ABOUT 100 MILES INTO MY TRIP WHILE PULLING AN ENCLOSED 16' TRAILER AT 70MPH ON A FLAT 4 LANE HIGHWAY THE WARNING REDUCED ENGINE POWER AND THE CHECK ENGINE LIGHT CAME ON. THE REDUCE ENGINE POWER WARNING WENT OUT, BUT THE CHECK ENGINE LIGHT STAYED ON. DURING THE NEXT 550 MILES THE REDUCED POWER WARNING CAME ON AND WENT OUT ABOUT EVERY 100 MILES. I WAS ABLE TO CONTINUE TO KY THAT DAY. THE LIGHT WENT OUT THE NEXT MORNING. ON 6 JULY 2020 I STARTED HOME AND BOTH THE CHECK ENGINE LIGHT AND THE REDUCED POWER WARNING CAME ON AFTER I HAD DRIVEN ABOUT 50 MILES DRIVING AT 70 MPH PULLING THE TRAILER ON A 4 LANE INTERSTATE HIGHWAY AFTER A FEW MINUTES THE REDUCED POWER WENT OUT BUT THE CHECK ENGINE STAYED ON, DURING THE NEXT 600 MILES THE CHECK ENGINE LIGHT STAYED ON BUT THE REDUCED POWER WARNING WOULD COME ON AND GO OUT AT ABOUT 50 MILE INTERVALS. THIS CONTINUED ALL THE WAY HOME. DURING THE TRIP WHEN THE REDUCED POWER WARNING CAME ON THE TRUCK WOULD HOLD WHATEVER SPEED THE CRUISE WAS SET AT BUT IF IT TRIED TO GO UP ANY INCLINE THE TRUCK WOULD NOT REV ABOVE 3000 RPM WHICH CAUSED THE TRANSMISSION TO JUMP IN AND OUT OF PASSING GEAR AND YOU WERE UNABLE TO PASS OR EVEN KEEP THE SPEED UP GOING UP ANY TYPE OF A STEEP INCLINE (HILL). SINCE YOU HAD NO IDEA WHEN THE LIGHT WAS COMING ON AND THE POWER WAS GOING TO BE REDUCED, I WAS AFRAID TO PASS ANYTHING OR LET ANY OTHER VEHICLE GET TOO CLOSE BEHIND. I GOT THE TRUCK INTO SHOP TWO DAYS LATER. WHEN I PICKED MY TRUCK UP, I WAS INFORMED THAT THE EGR COOLER HAD FAILED INTERNALLY AND WAS LOSING COOLANT INTO THE EXHAUST SYSTEM AND HAD TO BE REPLACED. I DID A SEARCH OF THE INTERNET FOR OTHER OWNERS WHO HAD THIS PROBLEM WITH THEIR TRUCK AND FOUND LOTS OF OTHER OWNERS WHO HAD THE SAME PROBLEM REDUCED ENGINE POWER AND MOST WERE DUE TO THE EGR COOLER LEAKING AND CAUSING A LOSS OF COOLANT.