Cherokee 2WD L6-242 40L VIN M FI (1987) Cooling System Thermostat Description
Thermostat: Service and Repair
REMOVAL
WARNING: DO NOT loosen the radiator draincock with the system hot and pressurized. Serious burns from the coolant can occur.
NOTE: DO NOT WASTE reusable coolant. If the solution is clean, drain the coolant into a clean container for reuse.
1. Drain the coolant from the radiator until the level is below the thermostat housing.
Fig. 15 Hose Clamp Tool - Typical
WARNING: Constant tension hose clamps are used on most cooling system hoses. When removing or installing, use only tools designed
for servicing this type of clamp such as special clamp tool (# 6094). Snap - On clamp tool (# HPC - 20) may be used for larger clamps.
ALWAYS WEAR safety glasses when servicing constant tension clamps.
Fig. 16 Clamp Number/Letter Location
CAUTION: A number or letter is stamped into the tongue of constant tension clamps. If replacement is necessary, use only an original equipment
clamp with matching number or letter.
2. Remove radiator upper hose and heater hose at thermostat housing.