What causes Rear main seal and valve cover leaks on the Jeep Cherokee Classic (xj)?

Oil film on bellhousing, dirty valve cover edges Estimated fix cost: $150-$900

What causes Unibody rust: frame rails, floors, rear quarters on the Jeep Cherokee Classic (xj)?

Poke rails behind rear wheels, lift carpet, spare well Estimated fix cost: $500-$4000

Coolant color, overflow bottle, exhaust smell, temp gauge Estimated fix cost: $200-$2500

Heat blows hot, all gauges and odometer working Estimated fix cost: $100-$400

Known issues to inspect before buying a used Jeep Cherokee Classic (xj). What to check and how much repairs cost.

MINOR

Oil film on bellhousing, dirty valve cover edges

Fix cost: $150-$900

SERIOUS

Poke rails behind rear wheels, lift carpet, spare well

Fix cost: $500-$4000

MODERATE

Coolant color, overflow bottle, exhaust smell, temp gauge

Fix cost: $200-$2500

MINOR

Heat blows hot, all gauges and odometer working

Fix cost: $100-$400

☐Crawl under with screwdriver, probe frame rails

☐Cold start, watch temp and smoke

☐Check 4WD engages, listen transfer case

☐Verify no death wobble above 45mph

Tough drivetrain, rust and leaks kill them