Dodge Intrepid Service Manual page 297

9 - 62 ENGINE 2.7L
LUBRICATION (Continued)
If the leakage occurs at the crankshaft rear oil seal
area:
(1) Disconnect the battery.
(2) Raise the vehicle.
(3) Remove torque converter or clutch housing
cover and inspect rear of block for evidence of oil.
Use a black light to check for the oil leak. If a leak is
present in this area, remove transmission for further
inspection.
(a) Circular spray pattern generally indicates
seal leakage or crankshaft damage.
(b) Where leakage tends to run straight down,
possible causes are a porous block, oil gallery cup
plug, bedplate to cylinder block mating surfaces
and seal bore. See proper repair procedures for
these items.
(4) If no leaks are detected, pressurize the crank-
case as previously described.
CAUTION: Do not exceed 20.6 kPa (3 psi).
(5) If the leak is not detected, very slowly turn the
crankshaft and watch for leakage. If a leak is
detected between the crankshaft and seal while
slowly turning the crankshaft, it is possible the
crankshaft seal surface is damaged. The seal area on
the crankshaft could have minor nicks or scratches
that can be polished out with emery cloth.
CAUTION: Use extreme caution when crankshaft
polishing is necessary to remove minor nicks and
scratches. The crankshaft seal flange is especially
machined to complement the function of the rear oil
seal.
(6) For bubbles that remain steady with shaft
rotation, no further inspection can be done until dis-
assembled.
(7) After the oil leak root cause and appropriate
corrective action have been identified, replace compo-
nent(s) as necessary.
DIAGNOSIS AND TESTING - CHECKING
ENGINE OIL PRESSURE
(1) Remove the oil pressure switch. (Refer to 9 -
ENGINE/LUBRICATION/OIL PRESSURE SENSOR/
SWITCH - REMOVAL)
(2) Install oil pressure test gauge assembly, Spe-
cial Tools C-3292 with 8406 adaptor.
(3) Start engine and monitor gauge readings.
CAUTION: If oil pressure is 0 at idle, Do Not Run
engine at 3000 RPM
(4) Oil Pressure (engine at operating temperature):
Curb Idle 34.5 kPa (5 psi) minimum 3000 RPM
300–724 kPa (45–105 psi).
(5) If oil pressure is 0 at idle. Shut off engine,
check for pressure relief valve stuck open or a
clogged oil pickup screen.
(6) Install oil pressure switch after testing is com-
pleted. (Refer to 9 - ENGINE/LUBRICATION/OIL
PRESSURE SENSOR/SWITCH - INSTALLATION)
OIL
DESCRIPTION
For engine oil type and capacity (Refer to LUBRI-
CATION & MAINTENANCE/FLUID
DESCRIPTION - ENGINE OIL)
STANDARD PROCEDURE
STANDARD PROCEDURE - ENGINE OIL LEVEL
CHECK
The best time to check engine oil level is after it
has sat overnight, or if the engine has been running,
allow the engine to be shut off for at least 5 minutes
before checking oil level.
Checking the oil while the vehicle is on level
ground will improve the accuracy of the oil level
reading (Fig. 85). Add only when the level is at or
below the ADD mark.
Fig. 85 ENGINE OIL FILL AND DIPSTICK
LOCATIONS
1 - ENGINE OIL DIPSTICK
2 - ENGINE OIL FILL
LH
TYPES -