Dodge RAM TRUCK 1500 1995 Service Manual page 300

7 - 30 COOLING SYSTEM SERVICE PROCEDURES — ~ — — — B R
J9307-62
Fig, 37 Tensioner Mounting Bracket Dowel
Hole—SSL HDC-Gas Engine
(13) Connect throttle cable to clip at radiator fan
shroud.
(14) Connect wiring harness to A/C compressor.
(15) Fill cooling system. Refer to Refilling Cooling
System in this group.
- (16) Start and warm the engine. Check for leaks.
THERMOSTAT
GENERAL I N F O R M A T I O N
The thermostat on all gas powered engines is lo­
cated beneath the thermostat housing at the front of
the intake manifold (Figs. 38 or 39).
THERMOSTAT
HOUSING
GASKET
INTAKE
MANIFOLD
THERMOSTAT
MACHINED GROOVE
J9207-14
Fig. 38. Thermostat—8.9L V-6 or 5.2/5.9L V-8 Gas
Powered Engines
TEMP.
GAUGE
SENDING
UNIT
COOLANT
TEMP.
SENSOR
(FOR PCM) HEATER
SUPPLY
FITTING
BOLTS (6)
HOUSING
GASKET
THERMOSTAT
RUBBER LIP SEAL
J9407-16
Fig. 39 Thermostat—8.0L V-10 Engine
The thermostat of the 5.9L diesel engine is located
in the thermostat housing (Fig. 40). The housing is
located behind the generator mounting bracket, at
front of cylinder head.
HOUSING HOSE
LIFT
BRACKET
HOUSING
BOLTS
OUTER THERMOSTAT
SEAL
INNER
SEAL
J9507-22
Fig. 40 Thermostat—5.9L Diesel—Typical
Gas powered engines: The thermostat is a wax pel­
let driven, reverse poppet choke type (3.9L/5.2L/
5.9L), or moveable sleeve type (8.0L V-10). The wax
pellet is located in a sealed container at the spring
end of the thermostat. When heated, the pellet ex­
pands, overcoming closing spring tension and water