Free API

1999 MITSUBISHI ECLIPSE

2.4L I4FWDAUTOMATICgas
Be the first sponsor for this vehicle

For $99, we generate the full set of step-by-step repair procedures for this exact vehicle. Free for everyone, forever, with your name on every one.

Sponsor — $99
Dead battery / stuck in Park? Emergency neutral procedure for this Eclipse
5-Year Cost of Ownership
$32,607 maintenance + known platform issues
~$6,521/yr · 540¢/mile equivalent · $6,717 maintenance + $6,940 expected platform issues
Compare this engine
vs
3.8L V6
vs
3.0L V6

Common Problems & Known Issues

The 1999 Eclipse is a fun platform hampered by weak automatic transmissions, premature crankshaft wear (especially turbos), and common suspension wear. The 2.4L non-turbo is more reliable, but all variants suffer from deteriorating control arm bushings and persistent electrical gremlins.

Crankshaft Walk (2.0L Turbo)

Common · high severity
Typical onset: 60,000-100,000 mi
Symptoms: grinding noise from front of engine, clutch engagement issues, oil leaks at front main seal, eventually won't start or runs rough
Fix: Crankshaft thrust bearing failure allows crank to move fore/aft. Requires engine removal, full teardown, crankshaft replacement or machining, new bearings, seals. 20-30 hours labor. Many opt for short block swap instead.
Estimated cost: $3,500-6,000

Automatic Transmission Failure (F4A33)

Common · high severity
Typical onset: 80,000-130,000 mi
Symptoms: slipping between gears especially 2nd-3rd, delayed engagement when cold, shuddering on acceleration, no forward movement
Fix: Weak clutch packs and inadequate cooling lead to internal failure. Rebuild requires 12-16 hours; most shops recommend reman unit. Oil cooler should always be replaced simultaneously to prevent repeat failure.
Estimated cost: $2,200-3,800

Lower Ball Joint Separation

Occasional · high severity
Typical onset: 70,000-110,000 mi
Symptoms: clunking over bumps, wandering steering, uneven tire wear, visible grease boot tears
Fix: NHTSA recall addressed some units but failure still occurs. Ball joint can separate from control arm causing loss of steering control. Both lower control arms typically replaced as assemblies. 3-4 hours labor plus alignment.
Estimated cost: $600-900

Head Gasket Failure (2.4L I4)

Occasional · medium severity
Typical onset: 100,000-150,000 mi
Symptoms: white smoke from exhaust, coolant loss with no visible leaks, milky oil, overheating, rough idle when warm
Fix: The 4G64 engine develops head gasket leaks between cylinders or into coolant passages. Requires head removal, resurfacing, new gasket set, timing belt while it's apart. 10-14 hours labor.
Estimated cost: $1,400-2,200

Fuel Pump Failure

Common · medium severity
Typical onset: 90,000-140,000 mi
Symptoms: no-start condition, sputtering under load, stalling when hot, whining noise from rear tank area
Fix: In-tank pump fails, often without warning. Tank must be dropped for replacement. Some models subject to recall but many fail outside recall scope. 2-3 hours labor.
Estimated cost: $400-700

Headlight Wiring Harness Melting

Common · medium severity
Symptoms: headlights flickering or dim, burnt plastic smell near headlights, one or both headlights intermittent, melted connector housing visible
Fix: Factory headlight connectors undersized for current draw, especially with aftermarket bulbs. Wiring harness melts at connector. Proper fix is relay harness upgrade plus new OEM connectors. 2-3 hours labor if done right.
Estimated cost: $250-450

Rear Trailing Arm Bushing Deterioration

Common · low severity
Typical onset: 80,000-120,000 mi
Symptoms: clunking from rear over bumps, rear end feels loose or unstable, uneven rear tire wear, visible cracking in rubber bushings
Fix: Rubber bushings in rear trailing arms crack and separate. Both sides typically need replacement. Arms must be pressed out or complete arm assemblies replaced. 4-5 hours labor plus alignment.
Estimated cost: $500-800
Owner tips
  • On turbo models, change oil every 3,000 miles with quality synthetic to延缓crankshaft walk—check thrust play annually after 60k
  • Flush automatic transmission every 30k miles and install auxiliary cooler if towing or spirited driving
  • Inspect ball joints every oil change after 60k miles—separation happens suddenly
  • Upgrade headlight wiring to relay harness immediately, don't wait for failure
  • Budget $1,500/year for deferred maintenance on any 1999 Eclipse over 100k miles
Buy a manual-transmission 2.4L non-turbo if you must, but even then plan for suspension work and electrical issues—turbo automatics are grenades.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.

Labor Times — 1999 Mitsubishi Eclipse

494 jobs across 17 categories

body (31)

brakes (41)

cooling (21)

drivetrain (24)

electrical (75)

engine (64)

exhaust (24)

hvac (23)

interior (24)

maintenance (31)

steering (19)

suspension (42)

transmission (42)

🔧 Built by master technician Chris Hackleman · Master Technician · 20+ years.
Stuck on a repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
Building an app?
Free API access to all this data — 10 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included. Built by the same team.
Try ShopBase →