Mitsubishi Montero Transmission Repair Chicago
Expert Mitsubishi Montero transmission service in Chicago. Free computer diagnostic, lifetime warranty on rebuilds, all years.
Expert Mitsubishi Montero transmission service in Chicago. Free computer diagnostic, lifetime warranty on rebuilds, all years.
1992–2000: 4-speed automatic (V4A51) rear-wheel drive or 4WD; 3.0L or 3.5L V6 2001–2006: 5-speed automatic (V5A51) with Super Select 4WD; 3.8L V6; 215 hp Final US year: 2006
Montero V4A51/V5A51 diagnosis uses Mitsubishi diagnostic software or compatible OBD scanner. Solenoid pack testing — individual solenoid resistance and function. Fluid condition: SP-III ATF required. Torque converter shudder test at highway cruise. Transfer case diagnosis is separate — actuator motor replacement covers most 4WD engagement failures. Valve body service addresses delayed engagement and erratic shift complaints. Full rebuild is required when internal clutch pack wear is confirmed by pressure testing.
Mitsubishi SP-III or Diamond ATF SP-III; approximately 9 quarts; transfer case: separate Mitsubishi-specified gear oil
Fluid service: same day; solenoid pack: 1–2 days; transfer case actuator: 1 day; torque converter: 2–3 days; full rebuild: 4–6 days
"Honest diagnosis, fair price, and the repair was done right. Chicago Transmission has been my go-to for years. Wouldn't trust anyone else with my car."
"The free diagnostic alone was worth the trip. They found the problem fast, gave me a written estimate, and completed the work on time. Exceptional service."
"Family owned and it shows. They treated my car like it was their own. The lifetime warranty on my rebuild gives me total peace of mind. Highly recommend."
The V5A51 is a robust unit — Mitsubishi's 5-speed automatic was competitive when the Montero was current. The main wear items are solenoid pack and torque converter. With fluid maintenance and timely solenoid service, V5A51 units reach 200,000+ miles.
Yes — V4A51 and V5A51 rebuild kits, solenoid packs, and torque converters are available. The Montero shares transmissions with other Mitsubishi and some Dodge/Chrysler applications, which broadens parts availability.
Metal particles in the fluid, slipping during acceleration, limp mode that isn't resolved by solenoid replacement, or pressure test results below spec indicate rebuild territory. We inspect before recommending — not every Montero with shift complaints needs a full rebuild.
Mitsubishi's Super Select 4WD allows switching between 2WD, 4WD High, 4WD High Locked, and 4WD Low while moving. It uses an electronically-controlled transfer case that can fail at the actuator motor — a common service item on high-mileage Monteros.
Full rebuild: $2,600–3,600. Remanufactured unit installed: $3,000–4,400. Solenoid-only repair: $600–1,050. We quote after a full diagnostic inspection.
Same-day appointments available. Honest estimates, no surprises. We've been doing this since 1987.
