2006 Toyota Tacoma Power Train

I was driving and all of the sudden I felt a vibration when I let off the gas...I checked under and saw that the drive shaft/yoke was separated a little, so I decided not to drive it anymore and to disassemble it and found out that the lock nut is missing and more likely it came off. I've noticed that no sign that the lock been staked to lock in position (picture attached)...this is a near miss and could possibly there are more like this on the road that could lead to a very serious accident if this comes off while running in high speed. I bought this car in 2005 brand new, and I know for sure that this never been work on...I am a mechanic myself so I does the Maintenace to all my cars...I just want to make the company aware to prevent any possible serious accident...I owe 5 Toyota cars and I know one of the best and safest vehicle.

REAR DIFFERENTIAL OIL LEAK. THERE HAD BEEN A RECALL IN THE 2016 TOYOTA TACOMA BUT MY 2006 HAS THE SAME PROBLEM STARTING YEARS AGO. I DID NOT KNOW IT WAS LEAKING UNTIL I TOOK IT TO THE DEALERSHIP.

WHEN THE VEHICLE HAD AROUND 112,000 MILES ON IT THE CHECK ENGINE LIGHT CAME ON AND IT EXPERIENCED IRREGULARITIES WITH REGARD TO SHIFTING. THE CODE WAS RAN AND THE SHIFT SOLENOID WAS THE ISSUE. A NEW TRANSMISSION WAS RECOMMENDED. WE WERE NOT INFORMED OF THIS WHEN WE PURCHASED THE VEHICLE SECOND HAND. APPROXIMATELY A YEAR LATER THE SAME THING HAPPENED WITH THE SHIFTING AND THE CHECK ENGINE LIGHT COMING ON. UNFORTUNATELY BY THE TIME WE TOOK IT TO A CERTIFIED TOYOTA DEALER THE LIGHT WAS OFF AND IT WAS RUNNING SMOOTHLY. THE INCONSISTENCY OF THE ISSUE IS FRUSTRATING BECAUSE WE DON'T KNOW THE ACTUAL ISSUE AND IF THE VEHICLE CAN BE TRUSTED. THE CERTIFIED DEALER RECOMMENDS A COSTLY TRANSMISSION REPLACEMENT WITHOUT BEING ABLE TO VERIFY THE ISSUE.

TRANSMISIN SLIPS OR NOT RUN IN REVERSE, EVEN ON FLAT SURFACES. RUNS NORMALLY IN FORWARD.

VIBRATION EVERYTIME THE VEHICLE IS TRAVELLING AT LOWER SPEED, 20 MPH.

6 SPEED TRANSMISSION LOCKED IN GEAR WHEN ATTEMPTING TO SHIFT INTO FIRST GEAR. APPEARS TO BE STUCK IN 4 TH GEAR ? WAS ABLE TO GET IN DRIVEWAY. *TR

TL* THE CONTACT OWNS A 2006 TOYOTA TACOMA. THE CONTACT STATED THE VEHICLE HAS HAD PROBLEMS WITH THE CRUISE CONTROL. THE FAILURE BEGAN AFTER THE CONTACT HAD THE TRANSMISSION SERVICED AND THE TRANSMISSION WAS NOT REFILLED PROPERLY. AFTER THE SERVICE, THE CONTACT STATED THAT THE CRUISE CONTROL STARTED TO ACCELERATE PASS THE SPEED THAT IT WAS SET WITH BEING RESET BY THE DRIVER. THE VEHICLE WAS TAKEN TO THE DEALER AGAIN AND REPAIRS WERE MADE TO THE ELECTRONIC CONTROL UNIT, WHICH HAS CAUSED THE RPMS TO IDLE EITHER EXCESSIVELY LOW OR EXCESSIVELY HIGH. THE CONTACT STATED THE VEHICLE WILL ALSO DOWNSHIFT FROM FIFTH GEAR TO SECOND GEAR WHEN DRIVING WITH THE CRUISE CONTROL SET TO 55 MPH AND ABOVE. THE FAILURE MILEAGE WAS 85,118 AND THE CURRENT MILEAGE WAS 85,557.

2006 TOYOTA TACOMA WITH AUTOMATIC TRANSMISSION. SAME COMPLAINT AS OTHERS. LOW END RUMBLING SOUND AND VIBRATION IN FRONT END BETWEEN 55 AND 65 MPH. FRONT DIFFERENTIAL BEARINGS, WHERE FRONT AXLES ENTER THE DIFFERENTIAL CASE, HAVE EXCESSIVE PLAY (SLOP) IN THE BEARINGS. DEALER REFUSES TO REPAIR THE BEARINGS EVEN THOUGH IT IS STILL UNDER WARRANTY. I HAVE VIDEO TAPED THE CONDITION AS WELL AS THE MILEAGE AND WILL KEEP RECORDS OF MY MULTIPLE VISITS TO THE DEALER. I HAVE ALSO FOUND OTHER USED TACOMA TRUCKS ON DEALER LOTS WITH AS LITTLE AS 20,000 MILES THAT HAVE THIS SAME PROBLEM. I BELIEVE TOYOTA ENGINEERED THESE DIFFERENTIALS TO LAST ONLY 60,000 MI AND MOST OWNERS MAY NOT NOTICE THE PROBLEM UNTIL WARRANTY IS OVER. MY 1992 TOYOTA PICKUP 4X4 WITH 238,000 MILES HAS LESS BEARING SLOP IN IT THAN THE '06. *TR

A CHIRPING SOUND BEGAN BEING EMITTED FROM THE TRANSMISSION. THE CHIRP WAS PRESENT AT ALL TIMES EXCEPT WHEN THE CLUTCH WAS DEPRESSED. THE PROBLEM WAS DIAGNOSED AS A THROW OUT BEARING WIGGLING ON THE PILOT SHAFT. THE THROW OUT BEARING SCORED THE PILOT SHAFT. A NEW THROW OUT BEARING WAS INSTALLED AND THE PILOT SHAFT SMOOTHED WITH EMORY CLOTH. THIS SOLUTION SOLVED THE PROBLEM IMMEDIATELY, BUT WITHIN A YEAR, THE SAME CHIRP RETURNED. THE THROW OUT BEARING IS AGAIN VIBRATING ON THE PILOT SHAFT. *TR

I WAS STOPPED AT A STOP LIGHT FOR 30 SECONDS. MY RIGHT FOOT WAS ON THE BRAKE. THE ENGINE RPM SUDDENLY JUMPED AND MY TRUCK SURGED AHEAD 8 FEET. THE ONLY REASON IT STOPPED GOING FORWARD IS BECAUSE THE RPM DROPPED TO NORMAL. MY RIGHT FOOT NEVER LEFT THE BRAKE PEDAL. THIS ONLY HAPPENED ONCE. I AM FIRST WRITING NOW BECAUSE I HEARD TODAY THAT THE NHTSA HAS RECEIVED HUNDREDS OF COMPLAINTS FOR THE 2006-2007 TOYOTA TACOMA REGARDING THIS PROBLEM. THIS WAS NOT CARPET MAT RELATED. *TR

TRANSMISSION FAILS TO GO INTO GEAR. THIS IS A COMMON PROBLEM WITH THE AISIN AY6 6-SPEED MANUAL TRANSMISSION IN THE TACOMA FROM WHAT I SEE ON INTERNET FORUMS. A DANGER RESULTS IN CROSSING AN INTERSECTION, MERGING OR MANY OTHER UNFORESEEN INCIDENTS WHERE IT IS NEARLY IMPOSSIBLE TO GET THE TRANSMISSION INTO THE NEXT GEAR. IN MY CASE, IT IS PARTICULARLY DIFFICULT FOR THE 1-2, 2-3 SHIFTS AND REVERSE. I HAVE TAKEN MY TRUCK TO TOYOTA NUMEROUS TIMES AND IN SHORT WAS MORE OR LESS TOLD TO "TAKE A HIKE" AND SOMETIMES IN A MANNER THAN WAS NOT THE MOST PLEASANT MEANS. THROWOUT BEARING ALSO SQUEAKS SINCE BRAND NEW (TSB POSTED?), AND TOYOTA'S ONLY ACTION IS TO REPLACE IT WITH ANOTHER BEARING THAT WILL ONLY SQUEAK AGAIN ANYWAY. I DO NOT GET WHY I HAVE TO CONSTANTLY TAKE A TRUCK THAT IS BARELY DRIVEN IN FOR A COMPLAINT. SOMETHING IS NOT RIGHT, I (WE) PAID FOR A TOYOTA AND THEIR REPUTATION, BUT THIS WAS MY LAST PURCHASE FROM TOYOTA EVER. IT SEEMS THAT TO GET ANYTHING REPLACED ON EVERY VEHICLE AFFECTED BY THESE PROFOUND ISSUES, THAT SOMEONE MUST DIE AGAIN AS WITH THE GAS PEDAL INCIDENTS. *TW

TL* THE CONTACT OWNS A 2006 TOYOTA TACOMA. THE CONTACT STATED WHILE DRIVING 30 MPH, HE NOTICED AN ABNORMAL CLAPPING SOUND COMING FROM THE REAR OF THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIAN STATED THAT THE DIFFERENTIAL UNIT WOULD NEED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 57,859.

POWERTRAIN (FRONT DIFFERENTIAL) FRONT VIBRATION AROUND 30~45MPH. THE VIBRATION GOES AWAY WHEN 4WD IS ENGAGED. OTHER OWNERS HAVE CLAIMED PREMATURE WEAR ON FRONT DIFFERENTIAL BEARINGS (DRIVER SIDE). *TR

ON OUR 2006 TOYOTA TACOMA 4-CYLINDER 5-SPEED MANUAL TRANSMISSION, WHICH WE BOUGHT NEW, WHEN YOU LIFT OFF THE GAS AND PRESS IN THE CLUTCH TO SHIFT, THE ENGINE RPM'S DO NOT DROP AS THEY SHOULD, THEY REMAIN HIGH AND EVEN INCREASE. THIS HAS BEEN THE CASE SINCE IT WAS ALMOST NEW. NORMALLY WHEN YOU SHIFT THE RPM SHOULD DROP BETWEEN SHIFTS - INSTEAD THE REVS STAY CONSTANT OR INCREASE BETWEEN SHIFTS. THIS IS NOT A PROBLEM WITH "UNINTENDED ACCELERATION", BUT RATHER THE THROTTLE GETTING "HUNG" WHEN IN NEUTRAL BETWEEN SHIFTS. EVEN TAPPING ON THE GAS PEDAL DOES NOT CAUSE THE REVS TO DROP, THEY STAY HIGH OR INCREASE. I ORIGINALLY THOUGHT IT WAS A TOYOTA "FEATURE" TO SMOOTH OUT SHIFTS, BUT AFTER ALL THE PRESS, I HAVE COME TO THINK IT IS A STICKY THROTTLE ISSUE, WHETHER DUE TO MECHANICAL ISSUES (STICKY CABLE, STICKY THROTTLE LINKAGE) OR ELECTRONIC ISSUES. I CONTACTED TOYOTA ONLINE SEVERAL MONTHS AGO, GOT A CONFIRMATION THAT THEY HAD RECEIVED THE COMPLAINT, BUT THAT IS THE LAST I HAVE HEARD. I PUT IN A REQUIRED MONTH/YEAR/DATE, BUT REALLY IT IS AN ONGOING PROBLEM SINCE THE CAR WAS ALMOST NEW. *TR

THE INCIDENT OCCURRED IN A 2006 TOYOTA TACOMA DOUBLE CAB (AUTOMATIC TRANSMISSION) ON DRY PAVEMENT DURING CONGESTED EVENING RUSH-HOUR TRAFFIC IN REDMOND, WASHINGTON, USA. THE VEHICLE WAS COASTING (DECELERATING) UP A GENTLE RIGHT-BENDING GRADE TO A YIELD SIGN FROM SOUTHBOUND 148TH AVE NE TO WESTBOUND REDMOND WAY (RTE 908). AS THE VEHICLE COASTED TO THE YIELD SIGN SLOWING THROUGH A SPEED OF APPROXIMATELY 25-30 MPH, THE VEHICLE SUDDENLY AND UNEXPECTEDLY ACCELERATED AT FULL POWER WITH THE TACHOMETER NEEDLE INDICATING APPROXIMATELY 5000-6000 RPM. THE DRIVER STATES WITH UTMOST CERTAINTY THAT HIS FOOT WAS NOT IN CONTACT WITH THE ACCELERATOR PEDAL IMMEDIATELY PRIOR TO OR DURING THE ACCELERATION. THE VEHICLE'S CRUISE CONTROL WAS TURNED ON BUT THE DRIVER STATES WITH UTMOST CERTAINTY THAT THE CRUISE CONTROL WAS NOT SET/ENGAGED IMMEDIATELY PRIOR TO OR DURING THE INCIDENT. WITHIN APPROXIMATELY 2 SECONDS OF THE ONSET OF THE RAPID UNEXPECTED ACCELERATION, THE DRIVER APPLIED HEAVY BRAKING AND THE ACCELERATION CEASED. THE VEHICLE OPERATED NORMALLY IMMEDIATELY AFTER THE APPLICATION OF BRAKES. THE DRIVER STATES THAT NO SUBSEQUENT UNEXPECTED ACCELERATIONS HAVE OCCURRED SINCE THE REPORTED INCIDENT. *TR

REAR AXLE SEALS CONTINUE TO LEAK AFTER BEING REPAIRED BY THE DEALER TWICE. *TR

THERE WAS NO EVENTS LEADING UP, IT JUST STARTED ONE DAY. YOU PUT THE BRAKE ON AND ALL OF A SUDDEN THE TRUCK WOULD TRY TO LEAP FORWARD WITH A LOUD THUNK. THE LONGER YOU HOLD THE BRAKE THE LOUDER THE SOUND WOULD BE. NOW WHEN YOU LET UP ON THE BRAKE, IT DOES IT. NOT WHEN HOLDING THE BRAKE DOWN. WHEN YOU LET UP ON THE BRAKE, IT THUNKS HARD AND LOUD FORWARD. *TR

I HAVE A 2006 TOYOTA TACOMA X-RUNNER TRIM AND IT HAS HAD AN ISSUE WITH THE TRANSMISSION SINCE I BOUGHT IT. THE TRANSMISSION WILL NOT SHIFT FROM 1ST TO 2ND AND 2ND TO 3RD AND CAN EASILY BE REPEATED EVEN THOUGH TOYOTA TECH'S ALWAYS STATE THAT THE PROBLEM COULD NOT BE DUPLICATED EVEN THOUGH I HAVE DONE IT WITH TWO TECHS TEST RIDES. ALSO, IT CANNOT BE DOWNSHIFTED EASILY. IF I AM MERGING I CANNOT SHIFT INTO THE NEXT GEAR AND HAVE HAD A FEW CLOSE CALLS. ALSO, MORE RECENTLY I CANNOT SHIFT INTO REVERSE WHICH SEEMS LIKE THE SAME FORWARD SHIFTING, EXCEPT I AM NOT MOVING. I HAD RECENTLY PARKED IN A SPOT THAT HAD A SLIGHT INCLINE AND WHEN IT CAME TIME TO BACK OUT, I COULD NOT GET IT INTO GEAR AND KEPT ROLLING FORWARD MORE AND MORE EACH TIME TILL I HIT THE BUMP STOP IN THE PARKING STALL AND DAMAGED THE UNDERSIDE OF THE FRONT BUMPER AND FROM WHICH I HAD TO GET SOME HELP TO PUSH IT BACKWARDS OUT OF THE SPOT. *TR

MY 2006 DOUBLE CAB TACOMA TRD OFF ROAD TENDS TO LUNGE FORWARD AS I AM COMING TO A STOP. IT HAS NEVER CAUSED ME TO WRECK BUT IT COULD SOME DAY. IT SEEMS TO BE A TRANSMISSION ISSUE WITH THE DECELERATION OR SOMETHING. *TR

MY 2006 4 DOOR 4X4 TOYOTA TACOMA HAS AN UNINTENDED ACCELERATION PROBLEM. THE FIRST INCIDENT: I WAS DRIVING DOWN THE RAMP OF A PARKING GARAGE WHEN THE TACOMA SUDDENLY STARTED ACCELERATING OUT OF CONTROL. MY FOOT WAS COVERING THE BRAKE WHEN THE ACCELERATION BEGAN AND WHEN I PUT HARD PRESSURE ON THE BRAKES THE TRUCK WAS STILL ACCELERATING. NOTHING SLOWED IT DOWN, I WAS SLAMMING THROUGH THE (AUTOMATIC) GEARS DESPERATELY TRYING TO STOP THE TRUCK. I HAD TO GO OVER WALK WAYS AND CURBS TO AVOID PEDESTRIANS AND CEMENT BARRIERS. I FINALLY CAME TO A STOP AGAINST A LINCOLN TOWN CAR. THE SECOND INCIDENT (YESTERDAY) I WAS DRIVING THROUGH AN INTERSECTION WHEN THE TRUCK SUDDENLY FELT LIKE IT WAS FLOORED AND TOOK OFF. I WAS SLAMMING THE BRAKES AND GOING THROUGH THE AUTO GEARS AND IT CONTINUED FOR ABOUT 30 SECONDS UNTIL IT CAME TO A STOP. I AM VERY DISAPPOINTED TO READ THAT TOYOTA IS DENYING THIS ISSUE. PEOPLES LIVES ARE AT STAKE AND THE PROBLEM REALLY DOES EXIST ACCORDING TO THE 423 COMPLAINTS. I HAVE ALWAYS LOVED TOYOTA TRUCKS BUT I AM SAD TO SAY THIS ONE IS GOING TO HAVE TO GO. WHAT IF THE TOYOTA TACOMA KILLS SOMEONE NEXT TIME THIS HAPPENS? I WISH SOMEONE COULD DO SOMETHING ABOUT THIS...HOW MANY ACCIDENTS WILL IT TAKE? *TR

I WANT TO EXPRESS MY CONCERNS WITH MY 2006 TOYOTA TACOMA. I ALSO HAVE A LURCHING PROBLEM ONCE AT A COMPLETE STOP WITH MY FOOT ON THE BRAKE. I HAVE NEVER HIT ANYTHING, BUT THERE TIMES WHEN IT FEELS LIKE SOMEONE HAS TAPPED MY REAR BUMPER. I DON'T KNOW THAT THIS IS A MAJOR PROBLEM FOR ME, BUT I'VE READ THAT OTHERS HAVE ACTUALLY HIT OTHER CARS DUE TO THIS PROBLEM. THIS IS NOT NORMAL, IN MY OPINION. AND TOYOTA NEEDS TO ADDRESS THIS PROBLEM BEFORE MORE PEOPLE GET HURT. I PURCHASED THIS TRUCK BECAUSE OF TOYOTAS REPUTATION FOR QUALITY AND DEPENDABILITY. THIS LURCHING OCCURS ALMOST EVERY DAY, SO THE INCIDENT DATE IS THE LAST DAY THAT THIS HAPPENED. *TR

I OWN A 2006 TOYOTA TACOMA WHICH I PURCHASED NEW, AND NOW HAVE 11,347 MILES ON IT. IT'S AN AUTOMATIC 4 SPEED ECT-I TRANSMISSION. FROM DATE OF PURCHASE TO PRESENT AT SPEEDS BETWEEN 50 AND 60 MPH THERE IS A LOUD GERA WHINE. BELOW 50 AND ABOVE 60 IT GOES AWAY. I THINK IT MAY BE CAUSED BY THE RING & PINION GEARS IN THE DIFFERENTIAL,ALTHOUGH I AM NOT CERTAIN. *NM

AS MANY MANY MANY OTHERS HAVE EXPERIENCED, I JUST PURCHASED A USED 2006 TACOMA ABOUT 3 WEEKS AGO AND HE LURCHING AT RED LIGHTS WITH THE AC ON IS DANGEROUS. I NEVER KNOW WHEN THE TRUCK IS GOING TO GO TOO FAR AND STRIKE THE VEHICLE IN FRONT OF ME AT THE STOP LIGHT. ALSO, THE ERRATIC SHIFTING, MAINLY BETWEEN 4TH AND 5TH GEAR WORRIES ME OF EARLY TRANSMISSION FAILURE. THE EXCESSIVE ACCELERATION ON CRUISE CONTROL IS RIDICULOUS!!! THERE IS NO NEED FOR THE AGGRESSIVE DOWN SHIFTING TO GAIN 2 MPH. RIGHT NOW I AM CONCERNED WITH THE QUALITY OF THE PRODUCT AND IT'S ABILITY TO LAST IT'S EXPECTED LIFE SPAN. *TR

WHEN STOPPING THE VEHICLE SOMETIMES ONCE STOPPED THE TRUCK WILL LURCH FORWARD FOR NO REASON. THE TRUCK FEELS AS THOUGH IT IS GOING TO GET AWAY FROM ME. THIS HAS HAPPENED SEVERAL TIMES AND NO ONE SEEMS TO BE ABLE TO HELP. *TR

WHEN DRIVING BETWEEN 50-60 MPH A NOISE AND VIBRATION APPEARS AS DOCUMENTED BY MANY OTHERS AND AS BEING REPORTED BY THE DEALERSHIP AND TOYOTA AS BEING A NORMAL CHARACTERISTIC OF A TACOMA 6 SPEED TRUCK. WHEN USING THE A/C UNIT AFTER WAITING 24 HOURS OR LONGER A LOUD NOISE UPON ENGAGING THE UNIT CAN BE HEARD. TOYOTA AND THE DEALERSHIP EXPLAIN THIS IS NORMAL OPERATION, AND THE WARRANTY DOES NOT COVER IT. NUMEROUS OTHER OWNERS REPORT EXPERIENCE THIS ALSO. 3 6 SPEED TRANSMISSION IS CLUNKY (NOISY) AND MAKES LOUD NOISES WHEN ENGAGING AND DISENGAGING THE CLUTCH. ALSO STATED BY TOYOTA AND THE DEALERSHIP AS NORMAL, AND REPORTED BY MANY OWNERS FROM DAY ONE OF OWNERSHIP. DIFFICULTY AND FAILURE TO ENGAGE OR LOW AS WELL AS THE RR DIFF LOCK, ALSO FAILURE TO DISENGAGE UNLESS THE VEHICLE IS TURNED OFF. REPORTED BY TOYOTA AND DEALERSHIP AS NORMAL DUE TO NON-USE AND REQUIRES A BREAK IN PERIOD. OWNERS REPORT THIS FROM DAY ONE TO AS MUCH AS 40K MILES. MY VEHCILE HAS 12K AND IT PERFORMS AS OTHERS AND AS I HAVE DESCRIBED. TOYOTA AND THE DEALERSHIP CLAIM THIS IS NORMAL OPERATION AS DESIGNED. STEERING PULLS TO THE LEFT EVEN AFTER ALIGNMENT, AND TIRE BALANCE AND ROTATION. NUMEROUS PAINTED AREAS HAVE MISSING PAINT DUE TO IT LIFTS OFF THE VEHICLE REVEALING THE METAL SURFACE BELOW WITHOUT IMPACT OR DAMAGE AS IF IT WAS POORLY APPLIED. VEHICLE MPG AVERAGES 10-12 CITY AND 10-15 HIGHWAY WAY BELOW LISTED AND DOCUMENTED RANGES.*AK