Oil Cooler & Lines Description; Operation; Removal - Dodge Intrepid Service Manual

LH
OIL COOLER & LINES
DESCRIPTION
Vehicles equipped with the Heavy Duty Cooling
option (Sales Code NMC) or Severe Duty Cooling
option (Sales Code NMS) use an engine oil cooler
that is mounted inside the right radiator tank. An oil
cooler pressure control valve is used to control flow to
the cooler (Fig. 102).

OPERATION

Engine oil travels from the control valve through
the supply line and into the cooler. The control valve
allows engine oil flow when pressure is above
138–207 kPa (20–30 psi) and an internal orifice lim-
its oil flow to a maximum of 11.3 LPM (3 GPM). The
engine oil exits the cooler through the oil return line
and is returned to the engine oil pan (Fig. 102).
1 - SUPPLY LINE TO OIL COOLER
2 - FITTING
3 - OIL COOLER PRESSURE CONTROL VALVE
4 - OIL PRESSURE SWITCH AND CONNECTOR
5 - RETAINER

REMOVAL

ENGINE OIL COOLER
(1) The engine oil cooler is serviced with the radi-
ator (Refer to 7 - COOLING/ENGINE/RADIATOR -

REMOVAL).

COOLER LINES
(1) Disconnect cooler lines at radiator (Fig. 102).
(2) Disconnect lines at the pressure control valve
and oil pan fitting (Fig. 102).
(3) Disconnect lines for support retainer and isola-
tor.
(4) Remove lines.
PRESSURE CONTROL VALVE
(1) Disconnect oil pressure switch connector (Fig.
102).
(2) Disconnect cooler supply line for valve.
(3) Remove valve from engine block by unscrewing
fitting.
Fig. 102 Engine Oil Cooler - 3.5L
6 - NUT
7 - RETURN LINE
8 - SUPPLY LINE
9 - ENGINE OIL COOLER:
10 - ISOLATOR
ENGINE 3.5L 9 - 151