1988 JEEP CHEROKEE oil pressure
[x] Cancel search: oil pressurePage 996 of 1378
Drive Axles ................................ SAE 75W-90 API GL-5
Drive Axles (Trac-Lok) (
2) ................ SAE 80W-140 API GL-5
Drive Axles (Trailer Towing) .............. SAE 80W-140 API GL-5
Hydraulic Clutch ............... DOT 3 (SAE J-1703F) Brake Fluid
Manual Transmission ........................ SAE 75W-90 API GL-5
Parking Brake Cable Guides ................. NLGI Grade 2, GC-LB
Door & Hood Hinges ............................ Light Engine Oil
Manual Steering Box ............... Multi-Purpose NLGI Grade 2EP
Power Steering Pump ....................... Power Steering Fluid
Transfer Case ................................... Dexron-IIE ATF
Brake Caliper Bushings ........ GE 661 or DOW 111 Silicone Grease
Caliper Slide Pins ........... GE 661 or DOW 111 Silicone Grease
Wheel Bearings .................. Multi-Purpose NLGI Grade GC-LB
Drive Shaft U-Joints .............. Multi-Purpose NLGI Grade 2EP
Steering Linkage (
4)( 5) .................... NLGI Grade 2, GC-LB
Ball Joints (
4)( 6) ......................... NLGI Grade 2, GC-LB
Weatherstrip .......................... Silicone Spray Lubricant
Wheel Lug Nut Torque ...................... 95 ft. lbs. (129 N.m)
(
1) - SAE 10W-30 SH/CD is preferred.
(
2) - Add 4 ozs. (118 ml) of Limited-Slip differential lubricant
additive when changing fluid.
(
3) - For vehicles operating under heavy-duty towing conditions,
use SAE 75W-140 Synthetic lube.
NOTE: Before using SAE 75W-140 Synthetic the old fluid must
be DRAINED and FLUSHED with clean mineral based axle
lubricant. Then refill with new synthetic lube.
(
4) - Use low pressure grease gun to prevent seal damage.
(
5) - Fill until lubricant squeezes out from the base of seals.
(
6) - Fill ball joint until seal starts to swell.
\
\
\
\
\
\
\
Fluid Capacities
\
\
\
\
\
\
\
Application ( 1) Quantity
Automatic Transmission
1984-86 (904 HD)
Fluid Change ............................... 4.0 Qts. (3.8L)
Overhaul (Dry Fill) ........................ 8.0 Qts. (7.6L) \
1987-88
Fluid Change ............................... 4.0 Qts. (3.8L)
Overhaul (Dry Fill) ........................ 8.5 Qts. (8.0L) \
Cooling System (
2)
4-Cylinder .................................. 10.0 Qts. (9.5L)
6-Cylinder ................................. 12.0 Qts. (11.4L)
Engine Oil
4-Cylinder ................................... 4.0 Qts. (3.8L)
6-Cylinder ................................... 6.0 Qts. (5.7L)
Fuel Tank
Standard .................................. 13.5 Gals. (51.1L)
Optional .................................... 20 Gals. (75.7L)
Manual Transmission (
3)
AX4 (AISIN) .................................. 7.4 Pts. (3.5L) \
T4 (Borg-Warner) ............................. 3.9 Pts. (1.8L) \
AX5 (AISIN) .................................. 7.0 Pts. (3.3L) \
T5 (Borg-Warner) ............................. 4.5 Pts. (2.1L) \
Transfer Case
1985-86
Selec-Trac (229 Full-Time) ................. 6.0 Pts. (2.8L) \
Command-Trac (Part-Time 207) ............... 4.5 Pts. (2.1L) \
1987
Selec-Trac ................................. 2.5 Pts. (1.2L)
Command-Trac ............................... 2.2 Pts. (1.0L)
Page 998 of 1378
![JEEP CHEROKEE 1988 Service Repair Manual \b\
\
\
\
\
\
\
Lube Manual Gearshift Control (4WD Tra](/manual-img/16/57037/w960_57037-997.png "JEEP CHEROKEE 1988 Service Repair Manual \b\
\
\
\
\
\
\
Lube Manual Gearshift Control (4WD Tra")
\b\
\
\
\
\
\
\
Lube Manual Gearshift Control (4WD Transfer Case)
\b\
\
\
\
\
\
\
Inspect/Repack Front Wheel Bearings (2WD Models)
\b\
\
\
\
\
\
\
Inspect Front Brake Pads & Rotors
\b\
\
\
\
\
\
\
Lubricate Caliper Slide Rails
\b\
\
\
\
\
\
\
Inspect Rear Brake Linings & Drums
\b\
\
\
\
\
\
\
Inspect Brake System Hoses & Lines
\b\
\
\
\
\
\
\
Inspect Shocks for Leakage
\b\
\
\
\
\
\
\
Inspect Tire Wear Pattern
\b\
\
\
\
\
\
\
Lubricate Weatherstripping with Silicone
\b\
\
\
\
\
\
\
Lubricate Door Hinges
\b\
\
\
\
\
\
\
Lubricate Door Locks
\b\
\
\
\
\
\
\
Check Body Drain Holes
\b\
\
\
\
\
\
\
Rotate Tires and Adjust Air Pressure
\
\
\
\
\
\
\
Replace
\
\
\
\
\
\
\
Engine Oil
\b\
\
\
\
\
\
\
Oil Filter, if it has not been changed in the last 12 months
\b\
\
\
\
\
\
\
Manual Transmission Fluid
\b\
\
\
\
\
\
\
Automatic Transmission Fluid, Filter and Adjust Bands
\b\
\
\
\
\
\
\
Transfer Case Fluid
\b\
\
\
\
\
\
\
Flush and Fill Engine Coolant, if not done in last 24 months
\
\
\
\
\
\
\
Lubrication Specifications
\
\
\
\
\
\
\
Application Specification
Automatic Transmission .......................... Dexron-IIE ATF
Brake Master Cylinder .......... DOT 3 (SAE J-1703F) Brake Fluid
Engine Coolant ........... Alugard 340-2 & Water (50/50 Mixture)
Engine Oil (
1)
Gasoline Engine
Temperature Range
Above 30
F (-1
C) ........ SAE 20W-40 Or 20W-50 API SH/CD
Above 0
F (-18
C) ......... SAE 10W-30 Or 10W-40 API SH/CD
Less Than 60
F (16
C) ............... SAE 5W-30 API SH/CD
Drive Axles ................................ SAE 75W-90 API GL-5
Drive Axles (Trac-Lok) (
2) ................ SAE 80W-140 API GL-5
Drive Axles (Trailer Towing) .............. SAE 80W-140 API GL-5
Hydraulic Clutch ............... DOT 3 (SAE J-1703F) Brake Fluid
Manual Transmission ........................ SAE 75W-90 API GL-5
Parking Brake Cable Guides ................. NLGI Grade 2, GC-LB
Door & Hood Hinges ............................ Light Engine Oil
Manual Steering Box ............... Multi-Purpose NLGI Grade 2EP
Power Steering Pump ....................... Power Steering Fluid
Page 999 of 1378
Transfer Case ................................... Dexron-IIE ATF
Brake Caliper Bushings ........ GE 661 or DOW 111 Silicone Grease
Caliper Slide Pins ........... GE 661 or DOW 111 Silicone Grease
Wheel Bearings .................. Multi-Purpose NLGI Grade GC-LB
Drive Shaft U-Joints .............. Multi-Purpose NLGI Grade 2EP
Steering Linkage (
4)( 5) .................... NLGI Grade 2, GC-LB
Ball Joints (
4)( 6) ......................... NLGI Grade 2, GC-LB
Weatherstrip .......................... Silicone Spray Lubricant
Wheel Lug Nut Torque ...................... 95 ft. lbs. (129 N.m)
(
1) - SAE 10W-30 SH/CD is preferred.
(
2) - Add 4 ozs. (118 ml) of Limited-Slip differential lubricant
additive when changing fluid.
(
3) - For vehicles operating under heavy-duty towing conditions,
use SAE 75W-140 Synthetic lube.
NOTE: Before using SAE 75W-140 Synthetic the old fluid must
be DRAINED and FLUSHED with clean mineral based axle
lubricant. Then refill with new synthetic lube.
(
4) - Use low pressure grease gun to prevent seal damage.
(
5) - Fill until lubricant squeezes out from the base of seals.
(
6) - Fill ball joint until seal starts to swell.
\
\
\
\
\
\
\
Fluid Capacities
\
\
\
\
\
\
\
Application ( 1) Quantity
Automatic Transmission
1984-86 (904 HD)
Fluid Change ............................... 4.0 Qts. (3.8L)
Overhaul (Dry Fill) ........................ 8.0 Qts. (7.6L) \
1987-88
Fluid Change ............................... 4.0 Qts. (3.8L)
Overhaul (Dry Fill) ........................ 8.5 Qts. (8.0L) \
Cooling System (
2)
4-Cylinder .................................. 10.0 Qts. (9.5L)
6-Cylinder ................................. 12.0 Qts. (11.4L)
Engine Oil
4-Cylinder ................................... 4.0 Qts. (3.8L)
6-Cylinder ................................... 6.0 Qts. (5.7L)
Fuel Tank
Standard .................................. 13.5 Gals. (51.1L)
Optional .................................... 20 Gals. (75.7L)
Manual Transmission (
3)
AX4 (AISIN) .................................. 7.4 Pts. (3.5L) \
T4 (Borg-Warner) ............................. 3.9 Pts. (1.8L) \
AX5 (AISIN) .................................. 7.0 Pts. (3.3L) \
T5 (Borg-Warner) ............................. 4.5 Pts. (2.1L) \
Transfer Case
1985-86
Selec-Trac (229 Full-Time) ................. 6.0 Pts. (2.8L) \
Command-Trac (Part-Time 207) ............... 4.5 Pts. (2.1L) \
1987
Selec-Trac ................................. 2.5 Pts. (1.2L)
Command-Trac ............................... 2.2 Pts. (1.0L)
1988
Selec-Trac ................................. 3.0 Pts. (1.4L)
Command-Trac ............................... 2.2 Pts. (1.0L)
Drive Axles (
3)
Front ........................................ 2.5 Pts. (1.2L)
Front (Disconnect Housing) .................. 5.0 Ozs. (0.15L) \
Rear ......................................... 2.5 Pts. (1.2L)
Rear (Trac-Lok) (
4) .......................... 2.5 Pts. (1.2L)
Page 1001 of 1378
![JEEP CHEROKEE 1988 Service Repair Manual Parking Brake System
\b\
\
\
\
\
\](/manual-img/16/57037/w960_57037-1000.png "JEEP CHEROKEE 1988 Service Repair Manual Parking Brake System
\b\
\
\
\
\
\")
Parking Brake System
\b\
\
\
\
\
\
\
Inspect Shocks for Leakage
\b\
\
\
\
\
\
\
Inspect Tire Wear Pattern
\b\
\
\
\
\
\
\
Rotate Tires and Adjust Air Pressure (Including Spare)
\
\
\
\
\
\
\
Replace
\
\
\
\
\
\
\
Engine Oil
\b\
\
\
\
\
\
\
Oil Filter
\b\
\
\
\
\
\
\
Spark Plugs
\b\
\
\
\
\
\
\
Ignition Cables
\b\
\
\
\
\
\
\
Distributor Cap and Rotor
\b\
\
\
\
\
\
\
Air Filter Element
\b\
\
\
\
\
\
\
Fuel Filter
\b\
\
\
\
\
\
\
PCV Valve (
1)
\b\
\
\
\
\
\
\
PCV Filter
\b\
\
\
\
\
\
\
EGR Valve & Tube (1987-92)
\b\
\
\
\
\
\
\
Vacuum Operated Emission Components (1987-92)
\b\
\
\
\
\
\
\
PCV Valve (
1)
\b\
\
\
\
\
\
\
Drive Belt (V-Type) (
2)
\b\
\
\
\
\
\
\
Flush and Fill Engine Coolant, if not done in last 24 months
\b\
\
\
\
\
\
\
Automatic Transmission Fluid, Filter and Adjust Bands
\
\
\
\
\
\
\
(
1) - Replacement is recommended by Chrysler at this time, but it
is not required to maintain the warranty on the PCV valve.
(
2) - Check and replace as needed.
\
\
\
\
\
\
\
Lubrication Specifications
\
\
\
\
\
\
\
Application Specification
Automatic Transmission .......................... Dexron-IIE ATF
Brake Master Cylinder .......... DOT 3 (SAE J-1703F) Brake Fluid
Engine Coolant ........... Alugard 340-2 & Water (50/50 Mixture)
Engine Oil (
1)
Gasoline Engine
Temperature Range
Above 30
F (-1
C) ........ SAE 20W-40 Or 20W-50 API SH/CD
Above 0
F (-18
C) ......... SAE 10W-30 Or 10W-40 API SH/CD
Less Than 60
F (16
C) ............... SAE 5W-30 API SH/CD
Drive Axles ................................ SAE 75W-90 API GL-5
Drive Axles (Trac-Lok) (
2) ................ SAE 80W-140 API GL-5
Drive Axles (Trailer Towing) .............. SAE 80W-140 API GL-5
Hydraulic Clutch ............... DOT 3 (SAE J-1703F) Brake Fluid
Manual Transmission ........................ SAE 75W-90 API GL-5
Parking Brake Cable Guides ................. NLGI Grade 2, GC-LB
Page 1002 of 1378
Door & Hood Hinges ............................ Light Engine Oil
Manual Steering Box ............... Multi-Purpose NLGI Grade 2EP
Power Steering Pump ....................... Power Steering Fluid
Transfer Case ................................... Dexron-IIE ATF
Brake Caliper Bushings ........ GE 661 or DOW 111 Silicone Grease
Caliper Slide Pins ........... GE 661 or DOW 111 Silicone Grease
Wheel Bearings .................. Multi-Purpose NLGI Grade GC-LB
Drive Shaft U-Joints .............. Multi-Purpose NLGI Grade 2EP
Steering Linkage (
4)( 5) .................... NLGI Grade 2, GC-LB
Ball Joints (
4)( 6) ......................... NLGI Grade 2, GC-LB
Weatherstrip .......................... Silicone Spray Lubricant
Wheel Lug Nut Torque ...................... 95 ft. lbs. (129 N.m)
(
1) - SAE 10W-30 SH/CD is preferred.
(
2) - Add 4 ozs. (118 ml) of Limited-Slip differential lubricant
additive when changing fluid.
(
3) - For vehicles operating under heavy-duty towing conditions,
use SAE 75W-140 Synthetic lube.
NOTE: Before using SAE 75W-140 Synthetic the old fluid must
be DRAINED and FLUSHED with clean mineral based axle
lubricant. Then refill with new synthetic lube.
(
4) - Use low pressure grease gun to prevent seal damage.
(
5) - Fill until lubricant squeezes out from the base of seals.
(
6) - Fill ball joint until seal starts to swell.
\
\
\
\
\
\
\
Fluid Capacities
\
\
\
\
\
\
\
Application ( 1) Quantity
Automatic Transmission
1984-86 (904 HD)
Fluid Change ............................... 4.0 Qts. (3.8L)
Overhaul (Dry Fill) ........................ 8.0 Qts. (7.6L) \
1987-88
Fluid Change ............................... 4.0 Qts. (3.8L)
Overhaul (Dry Fill) ........................ 8.5 Qts. (8.0L) \
Cooling System (
2)
4-Cylinder .................................. 10.0 Qts. (9.5L)
6-Cylinder ................................. 12.0 Qts. (11.4L)
Engine Oil
4-Cylinder ................................... 4.0 Qts. (3.8L)
6-Cylinder ................................... 6.0 Qts. (5.7L)
Fuel Tank
Standard .................................. 13.5 Gals. (51.1L)
Optional .................................... 20 Gals. (75.7L)
Manual Transmission (
3)
AX4 (AISIN) .................................. 7.4 Pts. (3.5L) \
T4 (Borg-Warner) ............................. 3.9 Pts. (1.8L) \
AX5 (AISIN) .................................. 7.0 Pts. (3.3L) \
T5 (Borg-Warner) ............................. 4.5 Pts. (2.1L) \
Transfer Case
1985-86
Selec-Trac (229 Full-Time) ................. 6.0 Pts. (2.8L) \
Command-Trac (Part-Time 207) ............... 4.5 Pts. (2.1L) \
1987
Selec-Trac ................................. 2.5 Pts. (1.2L)
Command-Trac ............................... 2.2 Pts. (1.0L)
1988
Selec-Trac ................................. 3.0 Pts. (1.4L)
Command-Trac ............................... 2.2 Pts. (1.0L)
Drive Axles (
3)
Front ........................................ 2.5 Pts. (1.2L)
Front (Disconnect Housing) .................. 5.0 Ozs. (0.15L) \
Page 1004 of 1378
DRAINED and FLUSHED with clean mineral based (non-synthetic)
axle lubricant. Then refill with new synthetic lube.
(4) - Use low pressure grease gun to prevent seal damage.
( 5) - Fill until lubricant squeezes out from the base of seals.
( 6) - Fill ball joint until seal starts to swell.
\
\
\
\
\
\
\
FLUID CAPACITIES
FLUID CAPACITIES TABLE\
\
\
\
\
\
\
Application Quantity ( 1)
A/C System R-12 Refrigerant Capacity ............... 36-40 Ozs.
Automatic Transmission
1984-86 (904 HD)
Fluid Change .............................. 4.0 Qts. (3.8L)
Overhaul (Dry Fill) ....................... 8.0 Qts. (7.6L)
1987-88
Fluid Change .............................. 4.0 Qts. (3.8L)
Overhaul (Dry Fill) ....................... 8.5 Qts. (8.0L)
Cooling System ( 2)
4-Cylinder ................................. 10.0 Qts. (9.5L)
6-Cylinder ................................ 12.0 Qts. (11.4L)
Engine Oil
4-Cylinder .................................. 4.0 Qts. (3.8L)
6-Cylinder .................................. 6.0 Qts. (5.7L)
Fuel Tank
Standard ................................. 13.5 Gals. (51.1L)
Optional ................................... 20 Gals. (75.7L)
Manual Transmission ( 3)
AX4 (AISIN) ................................. 7.4 Pts. (3.5L)
T4 (Borg-Warner) ............................ 3.9 Pts. (1.8L)
AX5 (AISIN) ................................. 7.0 Pts. (3.3L)
T5 (Borg-Warner) ............................ 4.5 Pts. (2.1L)
Transfer Case
1985-86
Selec-Trac (229 Full-Time) ................ 6.0 Pts. (2.8L)
Command-Trac (Part-Time 207) .............. 4.5 Pts. (2.1L)
1987
Selec-Trac ................................ 2.5 Pts. (1.2L)
Command-Trac .............................. 2.2 Pts. (1.0L)
1988
Selec-Trac ................................ 3.0 Pts. (1.4L)
Command-Trac .............................. 2.2 Pts. (1.0L)
Drive Axles ( 3)
Front ....................................... 2.5 Pts. (1.2L)
Front (Disconnect Housing) ................. 5.0 Ozs. (0.15L)
Rear ........................................ 2.5 Pts. (1.2L)
Rear (Trac-Lok) ( 4) ......................... 2.5 Pts. (1.2L)
( 1) - Capacities are recommended or calculated levels. Always use
dipstick (if available) to measure level.
( 2) - Includes 2.3 qts. for coolant recovery bottle.
( 3) - Fill to bottom of filler plug hole.
( 4) - Add 4 ozs. (118 ml) of Limited-Slip differential lubricant
additive first, then add new fluid.
\
\
\
\
\
\
\
Page 1053 of 1378
OVERHAUL
SUBMERGED VANE POWER STEERING PUMP
Disassembly
1) Drain pump reservoir. Clean exterior of unit. Measure
distance shaft protrudes from pulley, and record for assembly
reference. Using pulley remover, remove pulley from shaft. Clamp pump
in vise; DO NOT overtighten vise. Remove pressure line union,
reservoir mounting stud and reservoir. See Fig. 6. Remove and discard
pressure line union "O" rings.
Fig. 6: Exploded View of Pump Assembly (Grand Wagoneer & Wrangler)
Courtesy of Chrysler Motors
2) Using punch and screwdriver, remove end plate retaining
ring. Remove end plate and pressure plate spring. Remove "O" ring,
flow control valve and spring. Note direction of pump ring
installation for reassembly reference.
3) Using soft-faced hammer, tap end of drive shaft to loosen
pressure plate. Remove pressure plate, pump ring, vanes, retaining
ring, rotor and thrust plate assembly from body. Remove drive shaft.
Using a screwdriver, pry drive shaft oil seal from housing. Remove
dowel pins and seals.
Cleaning & Inspection
1) Clean all pump components in solvent, and blow dry.
Inspect flow control valve assembly for wear, scoring, burrs and other
damage. Inspect seal bore for burrs, nicks and score marks.
2) Inspect machined surfaces of body for scratches and burrs.
Check "O" ring mating surfaces. Inspect drive shaft for excessive
wear.
3) Inspect pump ring for roughness. Check thrust plate and
pressure plate for scoring and wear. Ensure vanes slide freely but fit
snugly into slots. If vanes are loose in slots, replace rotor and/or
vanes.
Reassembly
1) Before installation, coat all "O" rings, rotor, pressure
Page 1094 of 1378
Stud loose in
taper hole ............. A ........... (7) Require repair or
replacement.
Taper hole elongated .... A ........ ( 8) Require replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ........ ( 7) Require replacement.
Wear exceeds
manufacturer's
specifications .......... B ............ Require replacement.
( 1) - If greaseable, grease joint. If problem persists or
joint is non-greaseable, require replacement.
( 2) - Cracked grease boot will allow contaminants to enter
the joint and will accelerate wear.
( 3) - Lack of grease boot will allow contaminants to enter
the joint and will accelerate wear.
( 4) - Torn grease boot will allow contaminants to enter the
joint and will accelerate wear.
( 5) - If manufacturer's procedures for inspection exist, use
those procedures; otherwise, use an approved inspection
method such as the dry park check.
CAUTION: DO NOT use pliers or pry bar to check ball and
socket movement. Use only moderate hand pressure.
( 6) - Excessive looseness is defined as being significant
enough to affect vehicle handling or structural
integrity.
( 7) - Check for damaged taper hole.
( 8) - Check for damaged stud.
\
\
\
\
\
\
\
SHOCK ABSORBERS, STRUT CARTRIDGES AND STRUT ASSEMBLIES
You are not required to replace shocks or struts in axle
sets. However, when replacing a shock or strut due to the conditions
that follow, you may suggest replacement of the other shock or strut
on the same axle for improved performance and preventive maintenance.
* Part is close to the end of its useful life
* To extend tire life
* To balance ride and handling
* To improve stopping distance
When replacing steering and/or suspension components which
may affect an alignment angle, you are required to check and adjust
alignment as needed. Refer to the OEM specifications.
Under no circumstances should a technician bend struts or
strut housings.
A vehicle's load-carrying and handling abilities are limited
by its suspension, tires, brakes, and driveline. Installing coil over
shocks or any other load assist device does not increase the vehicle's
load capacity. See the vehicle owner's manual for more details.
NOTE: If vehicle is equipped with original equipment coil over
shocks, apply the conditions for coil springs from the
SPRINGS - COIL, LEAF AND TORSION BAR section of the
STEERING AND SUSPENSION guidelines. If the vehicle is
equipped with add-on coil over shocks, you may suggest
replacing the shocks with standard shocks for any spring-
related condition.
SHOCK ABSORBER, STRUT CARTRIDGE AND STRUT ASSEMBLY INSPECTION
\
\
\
\
\
\
\