Timing belt failure (interference engine)
high- Typically appears
- 60–105k mi (and every 60k thereafter)
- Estimated repair
- $400 – $700
1998 Mitsubishi
GalantSedan
Sedan
The 1998 Mitsubishi Galant is a front-wheel-drive midsize sedan that represented Mitsubishi's core family car during the late 1990s. This sixth-generation Galant arrived with a clean, rounded exterior, a reasonably comfortable interior, and a choice of four-cylinder engines — the 2.3L SOHC four being the volume seller in the US market. It competed squarely with the Honda Accord, Toyota Camry, and Nissan Altima of the era. On a day-to-day basis the Galant offers predictable, no-drama transportation. Ride quality is comfortable, the cabin is quiet for its class, and controls are straightforward. Performance is modest but adequate for commuting. The 4-speed automatic paired to the 2.3L is smooth but not particularly responsive when asked for passing power. At 25+ years old, any surviving example is a high-mileage used purchase. Parts availability has thinned compared to the Japanese Big Three, and the independent-shop knowledge base is narrower. That said, a well-maintained example with documented service history can still deliver reliable daily transportation at a very low acquisition cost.
Reliability
2/5
Verified data
Specs shown for Galant — the most common configuration.
Other trims may vary in engine, drivetrain, or fuel economy. Sign in to see your vehicle's exact specs.
Engine
[object Object]
Drivetrain
FWD
Fuel
Gasoline
MPG
19 city / 26 hwy / 22 combined
Seats
—
Doors
—
Body
Compact Cars
Overview
AI-curatedThe 1998 Mitsubishi Galant is a front-wheel-drive midsize sedan that represented Mitsubishi's core family car during the late 1990s. This sixth-generation Galant arrived with a clean, rounded exterior, a reasonably comfortable interior, and a choice of four-cylinder engines — the 2.3L SOHC four being the volume seller in the US market. It competed squarely with the Honda Accord, Toyota Camry, and Nissan Altima of the era. On a day-to-day basis the Galant offers predictable, no-drama transportation. Ride quality is comfortable, the cabin is quiet for its class, and controls are straightforward. Performance is modest but adequate for commuting. The 4-speed automatic paired to the 2.3L is smooth but not particularly responsive when asked for passing power. At 25+ years old, any surviving example is a high-mileage used purchase. Parts availability has thinned compared to the Japanese Big Three, and the independent-shop knowledge base is narrower. That said, a well-maintained example with documented service history can still deliver reliable daily transportation at a very low acquisition cost.
Known for
- Comfortable, compliant ride quality
- Quiet cabin for a late-1990s midsize
- Straightforward SOHC engine that responds well to basic maintenance
- Budget-friendly purchase price at this age
Best for
- Budget-conscious daily commuters
- Buyers who need basic, low-cost transportation
- Owners comfortable with DIY or independent-shop maintenance
Watch for
- Rust on underbody, floor pans, and wheel wells — critical concern in the Midwest salt belt
- Neglected timing belt (interference engine — belt failure destroys the engine)
- Aging automatic transmission with unknown fluid history
- Thin parts availability; some items are dealer-only or import-only
- Deteriorated rubber: bushings, motor mounts, coolant hoses, CV boots
Common issues by mileage
6 knownAutomatic transmission slipping or delayed engagement
high- Typically appears
- 100k+ mi
- Estimated repair
- $1,200 – $3,200
Oxygen sensor failure (upstream/downstream)
high- Typically appears
- 80k–150k mi
- Estimated repair
- $150 – $350
CV axle/joint wear and torn boots
high- Typically appears
- 80k+ mi
- Estimated repair
- $200 – $500
Idle control valve and throttle body buildup causing rough idle
medium- Typically appears
- 70k–130k mi
- Estimated repair
- $100 – $350
Underbody and floor pan rust (Midwest salt exposure)
high- Typically appears
- Any mileage on Midwest examples
- Estimated repair
- $500 – $3,000
Maintenance schedule
- 1 Every 60,000 miles — do not exceed Timing belt and water pump replacement
This is an interference engine. A snapped belt means bent valves and a destroyed cylinder head. At 25+ years old, replace immediately if history is unknown regardless of mileage.
- 2 Every 30,000 miles with genuine Mitsubishi SP-III or equivalent Automatic transmission fluid change
The 4-speed automatic is sensitive to fluid degradation. Wrong fluid type or extended intervals accelerate clutch pack wear. Use only the correct spec fluid.
- 3 Every 2 years / 30,000 miles Coolant flush and thermostat inspection
Old coolant loses its corrosion inhibitors and attacks the aluminum head and radiator. Thermostat failures are common at this age and cheap insurance to replace.
- 4 Every 30,000 miles Spark plugs and ignition wires
Original wires and plugs at this vehicle age will be well past useful life. Worn ignition components cause misfires and stress the catalytic converter.
- 5 Annually or at every oil change Inspect and replace CV axle boots
Once a boot tears, grease escapes and water/grit destroy the joint quickly. Catching a torn boot early saves a full axle replacement.
- 6 Every 2 years Brake fluid flush
Brake fluid is hygroscopic. Absorbed moisture lowers boiling point and corrodes calipers and wheel cylinders from the inside — common on vehicles this age.
- 7 Annually, ideally before winter Underbody rust inspection and treatment
Wisconsin road salt accelerates frame and floor pan corrosion. Catching rust early with coating or repair is far cheaper than structural damage.
- 8 Every 15,000–20,000 miles Air filter and PCV valve
A clogged PCV valve causes oil consumption and sludge buildup. Cheap preventive maintenance on a high-mileage engine.
Always defer to the manufacturer's service manual for warranty-mandated intervals.
Cost of ownership
Annual maintenance
$600 – $1,800
Fuel
Expect roughly $1,400–$1,800/year based on 15,000 miles at 22 MPG combined and current Midwest regular unleaded prices.
Insurance
Typically low — older, low-value vehicle; expect $600–$1,100/year depending on coverage level and driver profile.
The Galant's biggest ownership cost risk isn't routine maintenance — it's the unexpected: a transmission overhaul, a rust repair job, or a timing belt that wasn't changed on schedule. Budget conservatively. Routine maintenance at an independent shop is affordable, but hard-to-find parts can add cost and wait time. Total annual cost of ownership (maintenance + fuel, excluding insurance) for a well-kept example should run $2,000–$3,600. A neglected example can easily double that in the first year.
Seasonal care
Lake Geneva, WI Winter
- Switch to a full synthetic 5W-30 oil before temperatures drop below freezing — the SOHC engine needs oil flowing immediately on cold starts to protect the valve train.
- Test and replace the battery if it's over 3 years old. Cold cranking amps drop sharply below 0°F and this engine needs strong cranking.
- Fill washer fluid reservoir with a rated -20°F or colder washer fluid — standard fluid freezes in the lines and nozzles.
- Inspect rubber wiper blade inserts and replace if cracked or streaking; switch to winter-style blades to prevent ice buildup.
- Flush and refill coolant to the correct 50/50 mix; verify freeze protection to at least -34°F for Lake Geneva winters.
- Rinse the undercarriage thoroughly after any drive on salted roads — this vehicle's age makes it extremely vulnerable to accelerated rust from brine exposure.
Summer
- Check tire pressure after the first warm week — pressure increases approximately 1 PSI per 10°F of temperature rise and can push tires beyond the door placard spec.
- Inspect the A/C system for refrigerant charge and listen for compressor clutch chatter — aging compressors on 25-year-old vehicles commonly fail in summer heat.
- Check coolant level and inspect hoses for soft spots, cracking, or swelling; hot weather accelerates failure of aged rubber coolant hoses.
- Watch for heat soak hard-start issues — a failing coolant temp sensor or marginal fuel pressure regulator becomes more evident in summer heat.
Comparable vehicles
1998 Honda
Accord
Same segment, similar price, significantly stronger long-term reliability record and much better parts availability. A better bet for longevity if you can find a clean one.
1998 Toyota
Camry
Direct competitor with a superior reliability reputation. The 2.2L four-cylinder Camry of this era is known for reaching 200k+ miles with basic care. Easier to service anywhere.
1998 Nissan
Altima
Similar price point and mission, FWD midsize sedan. The KA24DE engine is simpler and well-documented. Comparable age-related risks but better shop familiarity in most markets.
1998 Mazda
626
Same era, same segment. The 2.0L four-cylinder 626 shares a budget-friendly used price and similar ownership profile. Automatic transmission reliability is also a known concern on the 626, so both warrant a pre-purchase inspection.
If you're shopping for one
Red flags
- Any rust-through on floor pans or structural underbody — walk away
- No timing belt records and owner can't confirm replacement history
- Transmission that slips, surges, or clunks on shifts — overhaul cost often exceeds vehicle value
- Coolant that is brown, rusty, or has an oily film — potential head gasket or internal corrosion
- Smoke from the exhaust on startup that doesn't clear — oil burning from worn piston rings or valve seals
- Check engine light on with no explanation from the seller
What to inspect
- Pull up floor mats and inspect floor pan for rust-through — lift the carpet at the front footwells and trunk corners
- Check the undercarriage for frame rail and subframe corrosion; poke suspected rust spots with a screwdriver
- Verify timing belt replacement in the service records — if unknown, budget $400–$700 immediately
- Test drive and watch for transmission shudder, slip, or delayed engagement from a cold start
- Inspect all CV axle boots for tears or grease fling marks on the inner fender
- Check coolant for brown or oily contamination (head gasket red flag) and verify no white exhaust smoke on startup
- Confirm A/C blows cold and heater works — HVAC components are aging and repairs can be expensive