25 of the
238 complaints filed about the Harley-Davidson Flhx
are about the engine —
11% of everything owners reported.
The worst model year for it is 2007.
The contact owns a 2024 Harley-Davidson Street Glide FLHX. The contact stated that while driving on several occasions at various speeds, the temperature warning light illuminated. The vehicle was steered to the side of the road and was turned off to cool down for approximately 20 minutes. The vehicle was restarted, but the failure recurred after driving for approximately 15 minutes. The vehicle was taken to an independent mechanic but was not yet diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 18,000.
NHTSA complaint #11743161 — an unverified report by a vehicle owner.
WHILE RIDING ON THE FREEWAY AT 65 MPH THE CHECK ENGINE LIGHT CAME ON AND THE BIKE WENT INTO A 'LIMP' MODE ALL OF A SUDDEN AND WOULD NOT GO OVER 15-20 MPH. HAD TO CUT ACROSS TRAFFIC WITHOUT GETTING HIT TO GET TO THE SIDE OF THE ROAD. TURNED OFF BIKE AND IT RESET WAS ABLE TO MAKE IT HOME. RESEARCHED PROBLEM ON LINE AND HAVE SEEMS SIMILAR PROBLEMS WITH THIS YEAR AND IT'S BEING TRACED BAD PINS USED IN SOME OF THE CONNECTORS DURING THIS TIME.
NHTSA complaint #11361012 — an unverified report by a vehicle owner.
TRANSMISSION IS LOSING OIL INTO PRIMARY. IT OVER FILLS THE PRIMARY WHILE DRAINING THE TRANSMISSION OF NEEDED LUBRICATION. AN OVERFILLED PRIMARY CAN CAUSE HARD SHIFTS, AND COULD POTENTIALLY DAMAGE THE CLUTCH.
NHTSA complaint #11142210 — an unverified report by a vehicle owner.
TL* THE CONTACT OWNS A 2017 HARLEY-DAVIDSON FLHX. UPON CHECKING THE OIL, IT WAS DISCOVERED THAT THERE WAS NO OIL ON THE DIP STICK. UPON FURTHER INSPECTION, IT WAS FOUND THAT THE OIL HAD TRANSFERRED TO THE PRIMARY. THE CONTACT WAS CONCERNED THAT THE FAILURE COULD POTENTIALLY RESULT IN THE ENGINE STALLING. THE MOTORCYCLE WAS TAKEN TO BROTHERS HARLEY-DAVIDSON INC (LOCATED AT 557 W MAIN ST, BRANFORD, CT) WHERE THE FAILURE WAS CONFIRMED AND A TSB WAS PERFORMED REGARDING THE FAILURE. THE MANUFACTURER WAS NOTIFIED AND STATED THAT THE MOTORCYCLE OPERATED AS INTENDED. THE FAILURE MILEAGE WAS 6,854. THE VIN WAS NOT PROVIDED.
NHTSA complaint #11128397 — an unverified report by a vehicle owner.
TL* THE CONTACT OWNS A 2010 HARLEY-DAVIDSON FLHX. THE CONTACT STATED THAT THE THROTTLE CONTROL ACTUATOR/INDUCTION MODULE FRACTURED INTERNALLY ON TWO OCCASIONS. THE CONTACT STATED THAT THE COMPONENT WAS NOT STRUCTURALLY SOUND. IN ADDITION, WHILE MAKING A LEFT TURN, THE PART FAILED AGAIN AND HAD TO BE REPLACED. AN UNKNOWN DEALER REPLACED THE PART TWICE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND SUGGESTED THAT THE DEALER REPLACE THE PART. THE VIN WAS UNKNOWN. THE APPROXIMATE FAILURE MILEAGE WAS 30,000.
NHTSA complaint #11122932 — an unverified report by a vehicle owner.
RIDING MY FLHX THE OTHER DAY AND BIKE STARTED MAKING NOISE FROM MY PRIMARY AND I PULLED OVER AND CHECKED NOISE AND COMFIRMED IT WAS COMING FROM THE LEFT SIDE(PRIMARY). MADE IT HOME SAFE; WASN'T FAR FROM HOME. TOOK OFF THE PRIMARY COVER AND CHECKED OVER THE INNER PRIMARY COMPONENTS. THE COMPENSATOR AND ADJUSTER WERE BAD. DID SOME RESEARCH AND FOUND THAT THE AUTO-ADJUSTED CHAIN TENSIONER TIGHTENS SO BAD OVER TIME THAT IT RATCHETS ALL THE SPROKET PARTS DOWN SO BAD THAT IT STARTES TO CREATE WEAR ON COMPONENTS SO BAD THAT PARTS CAN BREAK LOOSE, LOCK UP, AND THE COMPONENTS IN MY YEAR FLHX ARE SEVERLY UNDER RATED. THIS COMPENSATOR WASN'T SUPPOSED TO BE USED FOR ANYTHING BIGGER THAN AN 80 CUBIC INCH MOTOR; MY BIKE CAME STOCK WITH A 96 CUBIC INCH MOTOR. FLHX IS PAST ANY WARRANTY, BUT THIS IS AN INCREASING PROBLEM THAT HARLEY SHOULD BE HELD ACCOUNTABLE FOR AND BE MADE TO CORRECT IT. REPAIR IS GOING TO COST OVER $1000.00 FOR REPAIR FOR SOMETHING THAT SHOULD HAVE BEEN MADE RIGHT IN THE FIRST PLACE, ESPECIALLY FOR A MOTORCYCLE THAT IS SO POPULAR AND VASTLY SOLD ACCROSSED THE COUNTRY. IF THESE PARTS WERE TO LOCK UP WHILE RIDING, IT COULD CAUSE SEVER INJURY OR DEATH TO RIDER AND ANYONE AROUND THE BIKE DURING THE TIME.
NHTSA complaint #11022936 — an unverified report by a vehicle owner.
LEG BURNS DUE TO EXCESSIVE HEAT FROM REAR ENGINE CYLINDER. MEASURE RADIANT HEAT AT 340 DEGREES. THIS HAS CAUSED RED BURN ON THE BACK OF THE RIGHT LEG. HEAT IS FELT WHILE IN MOTION ON 80 DEGREE DAYS. INCREASES DURING STOPS FOR LIGHTS. HAVE BROUGHT TO DEALER AND MANUFACTURERS ATTENTION OVER THE PAST 5 YEARS.
NHTSA complaint #10885325 — an unverified report by a vehicle owner.
ENGINE PRODUCES EXCESS HEAT THAT CAN BURN YOU AND WHEN HOT RUNS ERRATIC AT IDLE. ESPECIALLY NOTICBLE WHEN STOPPED AT A LIGHT AND THE SYSTEMS GETS SO HOT IT CAN BURN YOUR LEGS. I HAVE AN OLDER HARLEY AND THIS IS NOT A PROBLEM WITH IT
NHTSA complaint #10882363 — an unverified report by a vehicle owner.
TL* THE CONTACT OWNS A 2009 HARLEY-DAVIDSON STREET RIDE FLHX MOTORCYCLE. WHILE DRIVING 65 MPH, THE CHECK ENGINE WARNING LIGHT ILLUMINATED AND THE THROTTLE FAILED TO RESPOND. THE FAILURE RECURRED SEVERAL TIMES. THE MOTORCYCLE WAS TAKEN TO THE DEALER. THE TECHNICIAN DIAGNOSED THAT THE INTAKE MANIFOLD AND THE INDUCTION MODULE KIT NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS 23,569. UPDATED 11/09/15*LJ
NHTSA complaint #10762093 — an unverified report by a vehicle owner.
TL* THE CONTACT OWNS A 2013 HARLEY-DAVIDSON FLHX MOTORCYCLE. WHEN THE MOTORCYCLE CLUTCH WAS ENGAGED TO START THE ENGINE, THE MOTORCYCLE FAILED TO ACCELERATE. THE CONTACT HAD TO ENGAGE THE START SWITCHES SEVERAL TIMES TO ENGAGE ACCELERATION. THE CONTACT ALSO STATED THAT THE ENGINE WARNING LIGHT ILLUMINATED WHILE DRIVING AND THE MOTORCYCLE DECELERATED. THE MOTORCYCLE WAS TAKEN TO THE DEALER SEVERAL TIMES FOR THE FAILURE. A DIAGNOSTIC WAS PERFORMED THAT WAS UNABLE TO LOCATE A FAILURE CODE; HOWEVER, THE DEALER REPLACED THE ELECTRONIC CONTROL MODULE, THE TWIST GRIP SENSOR, AND THE SPEED SENSOR. THE FAILURE WAS NOT CORRECTED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 12,000.
NHTSA complaint #10762054 — an unverified report by a vehicle owner.
MOTORCYCLE SURGES UNEXPECTEDLY AND THEN ALSO LOSES THROTTLE CONTROL. THE FIRST INCIDENT I WAS PULLING OUT OF A PARKING LOT INTO TRAFFIC AND AS SOON AS I GOT INTO THE TRAFFIC LANE MOTORCYCLE LOST ALL THROTTLE RESPONSE BUT MOTOR WAS STILL RUNNING. TRAFFIC WAS A 4 LANE STREET WITH SPEED POSTED AT 35 MPH. THERE WAS NO SHOULDER AND ONLY A CURB. I HAD NOWHERE TO PULL OVER. I ALMOST GOT HIT BY SEVERAL PASSING VEHICLES. I HAD A CHECK ENGINE LIGHT COME ON AT THE TIME I LOST THROTTLE RESPONSE. I SHUT OFF IGNITION AND CYCLED POWER A FEW TIMES AND THE LIGHT WENT OFF AND I HAD THROTTLE RESPONSE AGAIN. THE CHECK ENGINE LIGHT HAS COME ON SEVERAL TIMES AND WENT INTO WHAT HARLEY DAVIDSON REPAIR CALLS LIMP MODE. I HAVE HAD THE BIKE IN SERVICE SHOP SEVERAL TIMES WITH NO PREVAIL ON FIXING PROBLEM. THE OTHER ITEM THE MOTORCYCLE IS DOING IS, THE BIKE THROTTLE SURGES UNEXPECTEDLY. I WAS PULLING UP TO A TRAFFIC LIGHT, JUST AS I WAS GOING TO STOP THE THROTTLE REVVED UP CAUSING ME TO GO INTO THE INTERSECTION ALMOST GETTING HIT AND LOSING CONTROL OF THE BIKE. I BELIEVE THE PROBLEMS IS RELATED TO THE ELECTRICAL OR COMPUTER SYSTEM OF THE BIKE. THE REPAIR SHOP SAYS ?IT?S A LOOSE WIRE OR CONNECTION? BUT THEY HAVE SPENT SEVERAL HOURS OVER SEVERAL MONTHS TRYING TO FIND IT. BOTH THE UNEXPECTEDLY SURGES AND LOSS OF THROTTLE CONTROL HAVE HAPPENED SEVERAL MORE TIMES. THIS IS A VERY DANGEROUS SITUATION. I HAVE ALMOST LOST CONTROL OF THE BIKE SEVERAL TIME BECAUSE OF IT.
NHTSA complaint #10761697 — an unverified report by a vehicle owner.
I WAS JUST RIDING DOWN THE I-405 FREEWAY NEAR SEATTLE, WA AT ABOUT 70 MPH IN THE LEFT WITH NO SHOULDER AVAILABLE TO PULL OVER ONTO. THE THROTTLE SUDDENLY FAILED AND I HAD NO POWER. I SLOWED DRAMATICALLY AND WAS NEARLY RUN OVER BY A TRUCK. I PUT ON MY FLASHERS AND MOVED 3 LANES RIGHT TO GET TO THE SHOULDER ON THE RIGHT. TRAFFIC WAS HEAVY AND I WAS FORTUNATE NOT TO BE HIT WHEN I HAD NO THROTTLE CONTROL. I CALLED A FRIEND AND HE CAME ABOUT AN HOUR LATER AND TOWED ME HOME. I FEEL THAT I WAS LUCKY NOT TO HAVE BEEN HURT OR KILLED IN THIS INCIDENT.
NHTSA complaint #10748784 — an unverified report by a vehicle owner.
I HAVE ACTUALLY 2 COMPLAINTS REGARDING THE ENGINE I BOUGHT A 103 KIT IN MY HARLEY FROM THE FACTORY ... IN THE PAST YEAR I'VE NOTICED SOME ISSUES WITH STARTING ON TAKING IT INTO A MECHANIC I WAS TOLD THE ISSUE WAS INHERENT WITH THE 103 ENGINE THAT WAS LATER ADDRESSED WHICH THEY ADDED COMPRESSION RELEASE TO THE HEADS ... I AM OUT OF WARRANTY SO I WENT AHEAD WITH THIS FROM MY MECHANIC ... HOWEVER IN DOING SO HE HAD IT APART AND TOOK A LOOK AT THE COMPENSATOR AND PRIMARY BEARING ... BOTH OF WHICH WERE BAD ... I LOOK ON THE FORUMS AND IT APPEARS TO BE AN ONGOING ISSUE ... WHY WAS THIS NOT ADDRESSED AND RECALLED? BOTH ISSUES ARE PREVALENT FOR MY YEAR / MODEL ... OR ANY MODEL FOR THAT YEAR AND THAT ENGINE ...
NHTSA complaint #10701922 — an unverified report by a vehicle owner.
WHILE RIDING ON HIGHWAY, ENGINE WENT TO IDLE AND CHECK ENGINE LIGHT CAME ON. HAD TO PULL OFF ON SHOULDER AND SHUT THE BIKE OFF. AFTER RESTARTING, BIKE WOULD RUN FINE FOR APPROX. 20 MILES AND IT WOULD HAPPEN AGAIN. HAPPENED FOUR TIMES ON 9/6/14. AFTER DOING SOME RESEARCH, HARLEY DAVIDSON IS AWARE OF THE PROBLEM BUT WILL NOT FIX IT IF NOT UNDER WARRANTY. IF THIS HAD HAPPENED WHILE PASSING, IN A CORNER OR IN A CENTER LANE ON A FREEWAY, THIS COULD HAVE RESULTED IN A CRASH.
NHTSA complaint #10631587 — an unverified report by a vehicle owner.
ENGINE LOST ALL POWER. HAD TO CYCLE THE IGNITION 3 TIMES TO RESET. DIAGNOSIS WAS A BAD THROTTLE BODY MODULE. DEALER SAID IT IS A KNOWN ISSUE AND IS HAPPENING FASTER THAN THEY CAN GET THE PARTS IN TO FIX. BIKE CURRENTLY HAS BEEN AT DEALER FOR 3 WEEKS AND PARTS ARE STILL ON BACK ORDER. HARLEY DAVIDSON HAS NOT LISTED IT AS A RECALL.
NHTSA complaint #10606438 — an unverified report by a vehicle owner.
WHILE DRIVING ON A VERY BUSY HIGHWAY AT AROUND 60 MPH I WENT TO PASS A CAR AND WHILE IN THE OTHER LANE PASSING I LOST ALL THROTTLE. THIS HAS HAPPENED NUMEROUS TIMES AND VERY DANGEROUS. I HAVE BEEN RIDING MOTORCYCLES FOR 40+ YEARS AND CAN'T EVEN IMAGINE WHAT WOULD HAPPEN TO AN INEXPERIENCED RIDER. I CAN NOT TO THIS DAY GET A STRAIGHT ANSWER FROM DEALER'S OR MECHANICS. I GUESS THIS IS ALL INCLUDED IN THE $22,000 I DISHED OUT.VERY VERY DANGEROUS. THERE ARE DEFINITE ISSUES WITH THE ELECTRONIC THROTTLE (FLY BY WIRE).
NHTSA complaint #10512689 — an unverified report by a vehicle owner.
TL* THE CONTACT OWNS A 2010 HARLEY DAVIDSON FLHX. THE CONTACT STATED THAT THE MOTORCYCLE STALLED WHILE DRIVING 55 MPH. THE CONTACT WAS ABLE TO RESTART THE VEHICLE SEVERAL TIMES, BUT THE FAILURE CONTINUED. THE DEALER LOCATED THE FAILURE AT THE THROTTLE WIRE SENSOR, WHICH RESULTED IN A LOSS OF FUEL CIRCULATION. THE VEHICLE WAS REPAIRED. THE THROTTLE BODY ASSEMBLY WAS REPLACED. THE MANUFACTURER TOOK A COMPLAINT. THE FAILURE AND CURRENT MILEAGES WERE 4,300 UPDATED 06/05/12
NHTSA complaint #10456421 — an unverified report by a vehicle owner.
TL* THE CONTACT OWNS A 2009 HARLEY DAVIDSON FLHX MOTORCYCLE. WHILE DRIVING APPROXIMATELY 60 MPH AND APPLYING THE THROTTLE, THE VEHICLE BEGAN TO DECELERATE ABNORMALLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING WHERE THE TECHNICIAN STATED THAT THE ECM CONNECTOR PINS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 12,000.
NHTSA complaint #10445098 — an unverified report by a vehicle owner.
2007 HARLEY DAVIDSON FLHX OIL LEAK FROM LOWER LEFT HAND SIDE OF ENGINE AND TRANSMISSION.STARTED TO LEAK AFTER 18,000 MILES.I FEEL THIS IS A MANUFACTURING DEFECT THAT SHOULD BE HONORED BY HARLEY DAVISON!
NHTSA complaint #10322802 — an unverified report by a vehicle owner.