What are the most common Nissan 240SX problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1998-1998 Nissan 240SX has 4 documented issues. The most frequently reported are: Rear Subframe and Strut Tower Rust, KA24DE Timing Chain Guide Wear and Rattle, Rear Main Seal and Valve Cover Oil Leaks. Of these, 2 are rated critical and should be addressed promptly.
Is the Nissan 240SX reliable?
The 1998-1998 Nissan 240SX has 4 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 2 issues are rated critical: Rear Subframe and Strut Tower Rust and KA24DE Timing Chain Guide Wear and Rattle. 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 Nissan 240SX problems?
Repair costs for known Nissan 240SX issues range from $200 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Rear Subframe and Strut Tower Rust, typically costs $200-$2,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 1990-1998 Nissan 240SX Rear Subframe and Strut Tower Rust?
The 240SX's rear subframe and strut towers corrode severely in rust-belt states. The rear subframe mounting points can rot to the point where the subframe separates from the unibody — an extremely dangerous condition. Rear strut towers also develop cracks and perforation from rus… Repairs typically run $200-$2,000. Severity: high.
What is the 1991-1998 Nissan 240SX KA24DE Timing Chain Guide Wear and Rattle?
The KA24DE engine in the 240SX uses a single timing chain with plastic-backed guides that wear and crack over time. As the guides deteriorate, the chain develops excessive slack, causing a distinctive rattle on cold start and eventually leading to jumped timing if left unaddresse… Repairs typically run $400-$1,200. Severity: high.
What is the 1991-1998 Nissan 240SX Rear Main Seal and Valve Cover Oil Leaks?
The KA24DE engine in the 240SX is known for developing oil leaks from multiple locations as gaskets age. The rear main seal is the most problematic, leaking oil onto the clutch (manual trans) or flex plate (automatic). Valve cover gaskets also harden and leak, dripping oil onto t… Repairs typically run $200-$1,500. Severity: medium.
What is the 1990-1998 Nissan 240SX Body and Chassis Rust (Fenders, Quarter Panels, Hatch)?
The Nissan 240SX is highly susceptible to body rust, particularly in the rear quarter panels, rear fender wells, door bottoms, rear hatch/trunk area, and rocker panels. The S13 (1989-1994) is more rust-prone than the S14 (1995-1998) due to thinner body panels and less corrosion p… Repairs typically run $300-$3,000. Severity: medium.
