Jeep Cherokee 2000 Service Manual - page 1096
DIAGNOSIS AND TESTING
SERVICE DIAGNOSIS—DIESEL—
PERFORMANCE
CONDITION
POSSIBLE CAUSES
CORRECTION
ENGINE WILL NOT CRANK
OR CRANKS SLOWLY
1. Starting motor operating, but not
cranking the engine.
1. Remove the starter motor. Check for
broken flywheel teeth or a broken
starting motor spring.
2. Crankshaft rotation restricted.
2. Rotate the engine to check for
rotational resistance.
3. Starting circuit connections loose or
corroded.
3. Clean and tighten connections.
4. Neutral safety switch or starter relay
inoperative.
4. Check starter relay supply voltage
and proper operation of neutral safety
switch (if equipped). Replace defective
parts.
5. Battery charge low.
5. Check battery voltage. Replace
battery if a charge cannot be held.
Displacement . . . . . . . . 2.5L (2499 cc)
Bore . . . . . . . . . . . . . . . 92.00
Stroke . . . . . . . . . . . . . . 94.00
Compression Ratio . . . . 21:1
Vacuum at idle . . . . . . . 600 mm/Hg (23.6 In/Hg)
Belt Tension . . . . . . . . . 400/500 N Automatic
Tensioner
Thermostat Opening . . . 80°C
6
2°C
Generator Rating . . . . . Denso 12V—95A
Cooling System Capacity. 9.5 Liter
P/S Capacity . . . . . . . . . 0.75 Liter
Engine Oil Capacity . . . 7.2L w/filter change
Timing System . . . . . . . Pushrod operated overhead
valves, with gear-driven
camshaft in crankcase.
Air Intake . . . . . . . . . . . Dry filter.
Fuel Feed . . . . . . . . . . . Vane pump incorporated in
injection pump.
Fuel System . . . . . . . . . Indirect fuel injection
(precumbustion chamber).
Combustion Cycle . . . . . 4 stroke
Cooling System . . . . . . . Water cooling.
Injection Pump . . . . . . . Rotary pump and
electronically managed.
Lubrication . . . . . . . . . . Pressure lubrication by
rotary pump, full-flow
filtration.
Engine Rotation . . . . . . . Clockwise viewed from
front cover.
Engine Description
9 - 2
ENGINE
XJ
DIAGNOSIS AND TESTING (Continued)