VehicleVerdict

1999 Ford Mustang engine problems

The 1999 Ford Mustang has 35 engine complaints filed with NHTSA — 12% of the year's total, and down from the prior model year.

35

Engine complaints

12%

Share of year

0

Crash-involved

0

Related recalls

Engine complaints by year

Mustang engine complaints by model year410 complaints1978: 2 complaints1983: 1 complaints1984: 6 complaints1985: 3 complaints1986: 6 complaints1987: 5 complaints1988: 5 complaints1989: 7 complaints1990: 10 complaints1991: 7 complaints1992: 7 complaints1993: 12 complaints1994: 194 complaints1995: 410 complaints1996: 95 complaints1997: 42 complaints1998: 48 complaints1999: 35 complaints2000: 47 complaints2001: 27 complaints2002: 27 complaints2003: 45 complaints2004: 8 complaints2005: 44 complaints2006: 27 complaints2007: 20 complaints2008: 8 complaints2009: 4 complaints2010: 12 complaints2011: 55 complaints2012: 33 complaints2013: 23 complaints2014: 19 complaints2015: 50 complaints2016: 80 complaints2017: 34 complaints2018: 61 complaints2019: 56 complaints2020: 25 complaints2021: 10 complaints2022: 6 complaints2023: 2 complaints2024: 9 complaints2026: 1 complaints
Mustang engine complaints by model year. Red bars are years to avoid.

What owners report

“CHECK ENGINE LIGHT STAYS ON CONSTANTLY. ENGINES IDLES ROUGH AND STALES AT ABOUT 1500 RPM'S. IF YOU TURN ON THE HEATER OR AC. THE PROBLEM GETS WORSE. I SCANNED THE CAR AND GOT A MISFIRE CODE AND AN EGR CODE. REPLACED ALL IGNITION PARTS AND ALL EMISSION PARTS AND THE CODE AND PROBLEM WON'T GO AWAY.…”

Complaint filed with NHTSA · Engine · May 20, 2002

Common questions

How many engine complaints does the 1999 Ford Mustang have?

NHTSA has 35 complaints about the 1999 Ford Mustang engine — 12% of all complaints filed for that model year.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.