Mitsubishi Mitsubishi Eclipse 1990-1994 Drivetrain Specifications

The 1990-1994 Mitsubishi Eclipse was available in both front-wheel drive (FWD) and all-wheel drive (AWD) configurations. The FWD models were equipped with a transverse-mounted engine and a standard 5-speed manual or optional 4-speed automatic transmission. The AWD models, primarily found in the GSX trim, featured a longitudinal engine layout and a 5-speed manual transmission, with a center differential for power distribution.

Regular maintenance for the Mitsubishi Eclipse drivetrain includes checking and changing the transmission fluid every 30,000 to 60,000 miles, inspecting the driveshaft and CV joints for wear, and ensuring proper lubrication of the differential. For AWD models, the transfer case fluid should also be changed every 30,000 miles. Regular inspection of the clutch system in manual transmissions and periodic alignment checks are also recommended.

To replace the clutch in a 1990-1994 Mitsubishi Eclipse, start by safely elevating the vehicle and removing the transmission. Disconnect the clutch slave cylinder and remove the pressure plate bolts to access the clutch disc. Inspect the flywheel for wear and resurface or replace if necessary. Install the new clutch disc and pressure plate, ensuring proper alignment. Reassemble the transmission and test the clutch operation before driving.

Common drivetrain issues include worn CV joints, which cause clicking noises during turns; transmission fluid leaks leading to shifting problems; and clutch slippage in manual models. AWD models may experience center differential wear or transfer case issues. Regular inspection and timely replacement of worn components can prevent these problems. Diagnostic steps include checking fluid levels, inspecting joints, and testing clutch engagement.

To optimize drivetrain performance, consider upgrading to a high-performance clutch kit for manual transmissions, using synthetic transmission fluid for smoother shifts, and installing aftermarket limited-slip differentials for better traction. Regularly inspect and replace worn components, such as CV joints and driveshafts. Additionally, ensure proper alignment and balance of the drivetrain components to reduce vibration and improve efficiency.