"How reliable is the 1999 Ford F-550 Sd?"

"Based on 92 NHTSA complaints, the 1999 Ford F-550 Sd has a median complaint mileage of 49555 miles. The most common issue is Clutch Assembly."

"What are common problems with the 1999 Ford F-550 Sd?"

"The most frequently reported component in NHTSA complaints for the 1999 Ford F-550 Sd is Clutch Assembly, accounting for a significant portion of the 92 total complaints filed."

1999 Ford F-550 Sd: Reliability Data

Source: NHTSA — 92 complaints

Total Complaints

49,555mi

Median Mileage

Clutch Assembly

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

26,000 25th Percentile

49,555 Median Mileage

81,877 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Clutch Assembly

Lugs/Nuts/Bolts/Studs

Tires

Engine

Valve

Automatic Transmission

Stabilizer Bar

Frame And Members

Vehicle Speed Control

Driveshaft

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"WHILE DRIVING TRANSMISSION/BRAKES FAILED."

"TIRE VALVE STEM CRACKS AND LEAKS, LEADING TO TIRE BLOWOUT. FIVE RESULTING TIRE FAILURES SO FAR ON A FLEET OF 17 SIMILAR TRUCKS, ALL LESS THAN ONE YEAR OLD."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

Lugs/Nuts/Bolts/Studs 10 complaints

25th: 73,504 mi Median: 82,864 mi 75th: 100,244 mi

Tires 6 complaints

Median: 50,000 mi

Engine 4 complaints

Median: 35,000 mi

Where Are Complaints Coming From?

Top states by complaint count.

PA: 17 CA: 13 GA: 9 OR: 7 OK: 6 TX: 5 KS: 4 MA: 4 FL: 3 OH: 3

Who Files Complaints?

45.7%

Original Owners

54.3%

Second+ Owners

Ford F-550 Sd — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
2000	85	51,500	Valve	5
2001	35	120,000	Fuel System, Diesel	0
2002	31	41,500	Fuel System, Diesel	0
2003	40	60,753	Fuel System, Diesel	2
2004	67	40,000	Fuel System, Diesel	1
2005	41	50,000	Fuel System, Diesel	0
2006	55	47,140	Fuel System, Diesel	0
2007	25	32,500	Fuel System, Diesel	0
2008	31	32,048	Engine	2

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28