What are the most common Mitsubishi 3000GT problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1998 Mitsubishi 3000GT has 3 documented issues. The most frequently reported are: Timing Belt and Hydraulic Tensioner Failure Destroying the Interference DOHC 6G72, Getrag AWD Manual Transmission Synchro Wear and Gear Grind (VR-4 5-Speed/6-Speed), Hydraulic Lash Adjuster 'Lifter Tick' on the 6G72 V6. Of these, 2 are rated critical and should be addressed promptly.
Is the Mitsubishi 3000GT reliable?
The 1998 Mitsubishi 3000GT has 3 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 2 issues are rated critical: Timing Belt and Hydraulic Tensioner Failure Destroying the Interference DOHC 6G72 and Getrag AWD Manual Transmission Synchro Wear and Gear Grind (VR-4 5-Speed/6-Speed). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Mitsubishi 3000GT problems?
Repair costs for known Mitsubishi 3000GT issues range from $50 to $4,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Timing Belt and Hydraulic Tensioner Failure Destroying the Interference DOHC 6G72, typically costs $700-$4,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 1991-1999 Mitsubishi 3000GT Timing Belt and Hydraulic Tensioner Failure Destroying the Interference DOHC 6G72?
The DOHC 24-valve 6G72 in the SL and VR-4 is an interference engine: if the timing belt snaps or the known-weak hydraulic tensioner bleeds down and lets the belt skip teeth, pistons strike open valves. Documented failures have bent as many as 17 of the engine's 24 valves, turning… Repairs typically run $700-$4,500. Severity: high.
What is the 1991-1999 Mitsubishi 3000GT Getrag AWD Manual Transmission Synchro Wear and Gear Grind (VR-4 5-Speed/6-Speed)?
The Getrag-built AWD gearboxes in the VR-4 (W5MG1 5-speed through 1993, W6MG1 6-speed from 1994) are notorious for worn synchronizers, especially 1st-2nd and 2nd-3rd, causing grinding shifts. The synchros are undersized for the mass of the gears at high engine speed, so spirited… Repairs typically run $2,000-$4,500. Severity: high.
What is the 1991-1999 Mitsubishi 3000GT Hydraulic Lash Adjuster 'Lifter Tick' on the 6G72 V6?
The 6G72's hydraulic lash adjusters are prone to internal varnish buildup and wear, producing the platform's famous ticking noise at idle that rises with RPM. Dirty oil or extended change intervals make the adjusters bleed down and stick, increasing valvetrain clearance. It is mo… Repairs typically run $50-$1,500. Severity: low.
