2012 Toyota Tundra ENGINE,FUEL/PROPULSION SYSTEM

Wife was driving truck and immediately went into limp mode on the highway. Check engine light came on, no accelerating then died. Had to get it towed. This is the 3rd incident with this issue.

MY TRUCK HAS BEEN HAVING HARD START ISSUES SINCE WINTER 2017. I FIGURED IT WAS MY BATTERY SO I REPLACED IT, BUT IT DIDNT HELP. THE HARD START WASN'T CONSISTENT SO I CHOSE TAKE SOME TIME TO SEE IF ANY OTHER PROBLEMS SURFACED. GOT THROUGH WINTER 2018 AND SPRING/SUMMER 2019 WITH IT STILL STARTING ROUGH ON OCCASION. BY OCTOBER 2019 MY TRUCK REACHED APPROX 78K MILES, AND ONE DAY IT DIDN'T START AT ALL. TOOK THREE TRIES TO GET IT GOING. I HAD THE BATTERY CHECKED ONCE AGAIN. IT TESTED BAD BUT IT WAS UNDER WARRANTY SO I HAD I LT SWAPPED OUT. THE PROBLEM PERSISTED. THIS TIME IT GAVE ME AN ENGINE LIGHT. MECHANIC SAID IT WAS AN 'EVAP CODE' AND RECOMMENDED I REPLACE THE GAS CAP TO START. CODE DIDNT RETURN BUT STILL HARD STARTING. TOOK ALMOST TWO MONTHS AND ENGINE LIGHT CAME BACK ON. THIS TIME P1604 STARTABILITY MALFUNCTION. WAS TOLD I HAD TO TAKE IT TO TOYOTA TO GET A REFLASH. I DECIDED TO DO SOME RESEARCH AND CAME ACROSS THE PROBLEMS TUNDRA OWNERS WERE HAVING WITH THIS FFV DENSITY SENSOR MALFUNCTION. PRINTED THE OLD SERVICE BULLETINS AND WENT TO TOYOTA TO TALK TO SERVICE DEPT ABOUT IT. THEY SAID TOYOTA JUST PUT OUT A NEW SERVICE BULLETIN IN DECEMBER 2019 FOR THE REFLASH BUT NOW ALSO REPLACING THE FUEL PUMP (TOYOTA TOLD ME DENSITY SENSOR ATTACHED TO THE PUMP). UNFORTUNATELY TOYOTA ALSO TOLD ME THEY WON'T COVER THE COST SINCE MY TRUCK HAD JUST GONE OVER 80K MILES, AND THEY ARE NOT FLEXIBLE WITH THAT AT ALL, EVEN THOUGH I TOLD THEM IT STARTED BEFORE 80K. T-SB-0166-19. SO I GOT PRICES. THE REFLASH IS ABOUT $140 AND JUST THE COST OF THE PUMP ITSELF IS $600, NOT INCLUDING LABOR. I HAVE SPOKEN TO THE TOYOTA USA CUSTOMER CARE TEAM AND THEY SAID THEY CANT HELP ME SINCE I DIDNT TAKE IT TO THE DEALER TO DIAGNOSE IT. APPARENTLY IT DOESNT MATTER IF YOU HAVE SERVICE RECORDS FROM ANOTHER SHOP. THIS IS MY 3RD TOYOTA, AND I LOVE MY TRUCK SO THIS BREAKS MY HEART.

WHILE DRIVING, MULTIPLE DASHBOARD LIGHTS CAME ON AND MY TRUCK WENT INTO "LIMP MODE," MEANING I LOST ALMOST ALL POWER WHILE DRIVING IN HEAVY TRAFFIC. TURNS OUT THIS IS AN ISSUE WITH THE AIR INJECTION PUMP, WHICH IS A KNOWN PROBLEM IN TOYOTA TUNDRAS. I BELIEVE THIS IS A SAFETY ISSUE THAT TOYOTA NEEDS TO ADDRESS.

MONDAY, JANUARY 15TH I DROVE AT 65 MPH TO WORK AT AND HOME ON THE FREEWAY WITH NO PROBLEMS. TUESDAY AND WEDNESDAY THE TRUCK WAS STATIONARY DUE TO COLD WEATHER CONDITIONS IN HOUSTON, TEXAS. THURSDAY MORNING THE 18TH, I DROVE AT 65 MPH TO WORK VIA FREEWAY WITH NO PROBLEMS. AFTER LUNCH I DROVE AT 45 MPH BACK TO WORK ON A STREET AND NOTICED THE CHECK ENGINE AND TRACTION LIGHT CAME ON AND SIMULTANEOUSLY THE TRUCK THEN STARTING DRIVING EXTREMELY SLUGGISH AND AND FAR BELOW THE SPEED LIMIT OBSTRUCTING THE FLOW OF TRAFFIC. I CAREFULLY GOT OVER AND DROVE THE TRUCK ONLY ALLOWED AT 30 MPH BACK TO THE OFFICE. AFTER CAREFULLY DRIVING HOME VIA STREET AT THE END OF THE DAY I GOT HOME AND REMOVED THE NEGATIVE WIRE FROM BATTERY AND RE-CONNECTED IT TO SEE IF THIS WOULD RESOLVE THE ISSUE. AFTER DOING SO, THE RESULTS WERE THE LIGHTS IN THE DASH WERE NOW OFF AND THE TRUCK DROVE PROPER WITH NO HINDRANCE. THIS WOULD LAST UNTIL WEDNESDAY 24TH. BOTH LIGHTS CAME BACK ON AND THE TRUCK STARTED AGAIN DRIVING SLUGGISHLY. ITS SEEM THAT WHEN THE LIGHT IS OFF THE TRUCK DRIVES FINE, BUT WHEN IT IS TRIGGERED THE TRUCK IS DRIVES EXTREMELY SLUGGISH. COULD THE BE A DEFECTIVE PART? ANY HELP WOULD BE USEFUL.

AFTER STARTING THE ENGINE, THE ENGINE RAISED PAST RED LINE RPM FOR SEVERAL SECONDS. AFTER SLOWING, I STARTED TO BACK OUT DRIVE WHEN ENGINE RAISED AGAIN INTO RED LINE RPM. BEFORE I GOT IT PULLED BACK INTO DRIVE, IT RAISED 3 MORE TIMES. EACH TIME I MANAGED TO GET TO NEUTRAL.

MY ISSUE IS RELATED TO THE ISSUE I AM FACING WITH TOYOTA COMPANY. I PURCHASED MY TRUCK WITHIN 2012 AND SINCE I HAVE PURCHASED THE TRUCK I TOOK THIS TRUCK TO THE DEALERSHIP FOR SEVERAL ISSUES. WITHIN FEW MONTHS OF PURCHASE THE AIR INJECTION PUMP STOP WORKING, TRUCK WAS AT THE DEALERSHIP FOR OVER A MONTH. TOYOTA INSTALLED TRD UPDATED FOR MY "INCONVENIENCE" I TOOK MY TRUCK BACK TO HAVE LOOKED AT OVER 10TIMES. ON FRIDAY I START HAVING THE SAME ISSUES, SO I DROPPED OF MY TRUCK AT THE SZOTT DEALERSHIP ON SATURDAY EVENING MARCH 1ST. MONDAY MORNING SERVICE MANAGER CALLED AND INFORMED THAT AIR INJECTION PUMP IS BAD AND IT MAY TAKE OVER 4 WEEKS TO HAVE THE PART REPLACED, ABOUT 4 WEEKS AGO TRUCK STOP RUNNING SO I TOOK IT TO THE DEALERSHIP CLOSE BY IN CANTON, TOYOTA OF CANTON REPLACE THE FUEL PUMP, TRUCK WAS AT THE DEALERSHIP FOR A WEEK. I TRY REACHING OUT TO TOYOTA AND SEE IF THEY COULD HELP ME RESOLVE THE ISSUE, BUT TOYOTA DON'T CARE. SEE BELOW EMAIL I SENT TO TOYOTA ON 12-13. I WAS ASSIGN "CASE MANAGER" WAS NO HELP AT ALL. ALL I AM ASKING TOYOTA TO REPLACE/RESOLVE MY TRUCK ISSUES. I AM TIRED OF TAKING MY TRUCK FOR REPAIRS. I WILL FILE THE COMPLAINT TO THE ATTORNEY GENERAL'S OFFICE AS WELL. ISSUES WITH CABIN IS BEING LOUD AIR COMES FROM THE WINDSHIELD AND FORM THE LEFT AND RIGHT DOORS/WINDOWS. TRUCK WAS AT THE DEALERSHIP LAST YEAR FOR OVER 3 WEEKS DUE TO THE AIR INTAKE PUMP ISSUE. I AM STILL FACING THE SAME ISSUES WHILE DRIVING TRUCK LOSE POWER AND WHILE I AM PULLING OVER SOME TIME I GET THE POWER BACK SOME TIME I HAVE TO WAIT TO MAKE SURE I CAN DRIVE OVER 25MILES PER HOUR. ALL THE BRAKES HAVE BEEN REPLACED DUE TO VIBRATION, NAVIGATION SYSTEM GOES IN AND OUT WHILE DRIVING, DEALERSHIP WAS INFORMED. WHOLE DASH LIGHTS ELECTRIC IN THE DASH FLICKER WHILE DRIVING. LAST MONTH BATTERY DIED AND ELECTRIC ISSUES ARE STILL THERE. *TR

I PURCHASED MY FLEX FUEL TUNDRA 5.7 IN NOVEMBER OF 2011. I STARTED TO EXPERIENCE ISSUES WITH COLD STARTS IN DECEMBER OF 2012. I HAD AN EXTENDED CRANK TIME, AND IT WOULD TAKE MULTIPLE ATTEMPTS TO START THE TRUCK. I TOOK IT TO THE DEALERSHIP FOR THE FIRST TIME IN JANUARY OF 2013. THE DEALERSHIP RESET MY COMPUTER. THE ISSUE SEEMS TO BE RESOLVED. THE FOLLOWING WINTER, IN DECEMBER OF 2013, I STARTED TO EXPERIENCE THE SAME ISSUE WITH COLD STARTS. THE DEALER APPARENTLY RESET MY COMPUTER AGAIN. JUST A MONTH LATER, JANUARY 2014, THE EXTENDED CRANK ON COLD STARTS BEGAN AGAIN. THIS TIME, THEY TOLD ME MY ALCOHOL DENSITY WAS READING 49%. THEY SAID IT SHOULD BE AT 85%, HOWEVER, I AM NOT USING STRAIGHT ETHANOL GAS, WHICH I TOLD THEM NUMEROUS TIMES, SO MY READING SHOULD NOT BE 85%. I WAS TOLD THE COMPUTER SHOULD RESET TO 0 WHEN I FILL UP, BUT MY TRUCK IS NOT. IT'S JUST BUILDING UP, WHICH RESULTS IN AN INACCURATE ALCOHOL DENSITY READING. THE DEALERSHIP TOLD ME THAT THE ONLY CURRENT SOLUTION IS IF MY TANK DROPS BELOW 1/4 TANK, I SHOULD ONLY FILL IT HALF WAY, DRIVE IT GENTLY, AND THEN GO BACK TO FILL IT THE REST OF THE WAY. AFTER FILLING IT, I WAS TOLD TO LET IT IDLE, AND DRIVE IT GENTLY WHEN I PULL OUT OF THE GAS STATION. THIS IS UNACCEPTABLE. FOLLOWING MY LAST VISIT TO THE DEALERSHIP, WHEN I REFILLED MY TRUCK FOR THE FIRST TIME AFTER THE LAST RESET, THE 'MILES TO EMPTY' WAS READING 425! MY TRUCK USUALLY RANGES BETWEEN 300 AND 320. THE 426 MILES TO EMPTY READING ONLY HAPPENED ONCE, BUT AGAIN, THE INCONSISTENCY AND INACCURATE READINGS ARE NONSENSE, ESPECIALLY ON A $35K+ VEHICLE. SINCE THEN, I HAVE RESEARCHED THE ISSUE, AND I'M NOT THE ONLY TUNDRA OWNER WITH THIS ISSUE. OTHER FLEX FUEL TUNDRA OWNERS ARE HAVING THE SAME ISSUE. *TR