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Fuel systemPart report

2008 Harley-Davidson FXD Fuel system Problems

Complaints
5about this part
Share
71%of 7 total for the year
Median mileage
1,200miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the fuel system of the 2008 Harley-Davidson FXD, 71% of the 7 complaints for this model year. Where a mileage was given, the median is 1,200 miles. 1 a fire, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Fuel pump on 2008 harley ultra classic caused pipes to get so hot ( glowing red )when I checked oil level the rag I was using caught on fire. Also the pipes are now really discolored and harley won't replace them back to original condition. They won't even change the oil that I'm sure was broken down by the heat.”

NHTSA complaint #10232931, filed 2008-07, 3,400 miles

“My brand new 2008 harley davidson night rod (vrscd) came with a faulty fuel gauge (sender). Took it into the dealership for a warranty replacement. The gauge (sender) was replaced, but the problem continued. The gauge displays incorrectly all the time. I'm resorting to resetting the trip odometer at every fill-up to endure that I don't run out of fuel. For $17,000 dollars you'd think a company that has been in business for over a century could get a simple thing like this figured out. …”

NHTSA complaint #10344775, filed 2010-07, 78 miles

“Uncontrollable idle, harley davidson fly by wire throttle. Idle intermittently will go above 1800 RPM. A factory known issue with no permanent repair or replacement. I have had this bike 2 months now it it has happened at least 8 times. Dealership said it was how I turned my bike off. They said to turn the ignition on and off 2-3 times to reset the throttle position problem is in the fly by wire circuit and computer which looses memory and goes into a high RPM. The experience is like cruise control being turned on and you cannot slow down when you release the throttle.... . …”

NHTSA complaint #10229325, filed 2008-05, 500 miles

“The contact owns a 2008 harley davidson night rider special motorcycle (na). While driving 45 MPH, the vehicle suddenly ran out of fuel. The contact stated that the fuel gauge indicated that the tank was full. The failure had occurred since april 2008. The vehicle was taken to an authorized dealer where the fuel sending unit was replaced. The failure occurred again a few weeks later. The contact had to set the trip odometer after he fueled to monitor the amount of fuel in the tank. The vehicle had not been repaired again. The VIN was unavailable. …”

NHTSA complaint #10359435, filed 2010-10, 1,200 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2008571%

Other parts of the 2008 Harley-Davidson FXD

Brakes
1 complaints
Suspension
1 complaints

← All problems reported for the 2008 Harley-Davidson FXD

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology