"How reliable is the 1999 Ford Mustang Gt?"

"Based on 41 NHTSA complaints, the 1999 Ford Mustang Gt has a median complaint mileage of 53564 miles. The most common issue is Engine."

"What are common problems with the 1999 Ford Mustang Gt?"

"The most frequently reported component in NHTSA complaints for the 1999 Ford Mustang Gt is Engine, accounting for a significant portion of the 41 total complaints filed."

1999 Ford Mustang Gt: Reliability Data

Source: NHTSA — 41 complaints

Total Complaints

53,564mi

Median Mileage

Engine

Top Issue

Crash Reports

When Do Complaints Happen?

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

38,500 25th Percentile

53,564 Median Mileage

91,833 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Engine

Engine And Engine Cooling

Vehicle Speed Control

Cooling System

Manifold/Header/Muffler/Tail Pipe

Recliner

Frontal

12V/24V/48V Battery

Cruise Control

Automatic Transmission

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"BATTERY WAS CHARGING BECAUSE AMP WAS DRAINING THE BATTERY. VEHICLE WOULD HAVE TO BE JUMPED. DEALER REPLACED AMP, AND THEY SAID IT WAS A DESIGN FLAW. VEHICLE WOULD GET STUCK IN REVERSE. PROBLEM WAS INTERMITTENT. MANAGEMENT A DEALERSHIP SAID IT WILL HAPPEN TIME TO TIME.*AK"

"COMPUTER CONTROLLED IDLE DEFECTIVE, IDLE SURGES UNPREDICTABLY. OCCURS MOSTLY WHEN STOPPED. IDLE FLUCTUATES BETWEEN 500 AND 1000. SOMETIMES WILL STALL AND OTHER TIMES WILL LURCH FORWARD AGAINST THE BRAKES. IF A/C IS TURNED ON, THE CONDITION IS WORSE. CAR HAS BEEN RETURNED TO DEALER AND THEY "CAN..."

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.

Engine 10 complaints

25th: 56,650 mi Median: 87,525 mi 75th: 105,200 mi

Engine And Engine Cooling 5 complaints

25th: 68,668 mi Median: 83,700 mi 75th: 98,050 mi

Vehicle Speed Control 3 complaints

Median: 26,960 mi

Where Are Complaints Coming From?

Top states by complaint count.

CA: 6 IL: 6 TN: 3 TX: 3 SC: 2 AL: 2 VA: 2 NV: 2 OH: 2 WA: 2

Who Files Complaints?

22%

Original Owners

78%

Second+ Owners

Ford Mustang Gt — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
1996	33	88,500	Manifold/Header/Muffler/Tail Pipe	1
1997	25	85,101	Manifold/Header/Muffler/Tail Pipe	2
1998	58	82,000	Manifold/Header/Muffler/Tail Pipe	2
2000	71	64,650	Engine	6
2001	78	48,000	Engine And Engine Cooling	14
2002	59	50,000	Engine	9
2003	59	6,000	Manual Transmission	3
2004	21	38,349	Frontal	6
2005	213	45,000	Electrical System	13
2006	178	33,000	Air Bags	15

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