1988 JEEP CHEROKEE fuel reserve
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CO Carbon Monoxide
CO2 Carbon Dioxide
CONV Convertible
CP Canister Purge
CPA Connector Position Assurance
CPS Crank Position Sensor
CTS Coolant Temperature Sensor
CV Check Valve or Constant Velocity
CVC Constant Vacuum Control
CW Clockwise
CYL or Cyl. Cylinder
Calif. California
Carb. Carburetor
Chrg. Charging
Circ. Circuit
Cntrl. Control
Comp. Compressor or Compartment
Conn. Connector
Cont. Continued
Conv. Convertible or Converter
Cu. In. Cubic Inch
Cyl. Cylinder
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"D" ABBREVIATION TABLE
"D" ABBREVIATION TABLE \
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ABBREVIATION DEFINITION
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"D" Drive
DBC Dual Bed Catalyst
DC Direct Current or Discharge
DDD Dual Diaphragm Distributor
DERM Diagnostic Energy Reserve Module
DFI Digital Fuel Injection
DIC Driver Information Center
DIS Direct Ignition System
DIS Distributorless Ignition System
DIST Distribution
DISTR Distributor
DK BLU Dark Blue
DK GRN Dark Green
DME Digital Motor Electronics (Motronic System)
DOHC Double Overhead Cam
DOT Department of Transportation
DP Dashpot
DRB-II Diagnostic Readout Box
DVOM Digital Volt/Ohm Meter (see VOM)
Def. Defogger or Defroster
Def. Defrost
Defog. Defogger
Diag. Diagnostic
Dist. Distributor or Distribution
Dr. Door
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"E" ABBREVIATION TABLE
"E" ABBREVIATION TABLE \
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ABBREVIATION DEFINITION
Page 921 of 1378
MAIN TE N AN CE R EM IN DER L IG HT R ESET P R O CED URES
1988 J e ep C hero ke e
1988-92 MAINTENANCE
Chrysler Motors Maintenance Reminder Lights
Jeep; Cherokee, Comanche, Wagoneer (1988-90), Wrangler
EMISSION MAINTENANCE INDICATOR LIGHT (1988-90)
Vehicles are equipped with an emission maintenance indicator
light on instrument cluster. This light will come on one time at 82,
500 miles to alert driver that emission service is required. At this
time, oxygen sensor and PCV valve must be replaced and all other
emission components should be inspected and serviced or replaced as
necessary.
Indicator timer is located under dash, near accelerator pedal
or to right of steering column. Timer cannot be reset. To turn off
light, timer must be replaced or disconnected. Since timer and sensor
are interdependent, if timer should fail prematurely, oxygen sensor
should be replaced at same time to preserve correct replacement
interval.
To replace timer on Cherokee, Comanche and Wagoneer models,
remove cruise control module (if equipped). Remove timer mounting
screws. Disconnect electrical connector. On Wrangler models, remove
timer mounting screws. Disconnect electrical connector. On all models,
install remaining components.
EMISSION MAINTENANCE INDICATOR LIGHT (1991-92)
Vehicles are equipped with an emission maintenance indicator
light on instrument cluster. This light will come on one time at 82,
500 miles to alert driver that emission service is required. At this
time, oxygen sensor must be replaced and all other emission components
should be inspected and serviced or replaced as necessary. Chrysler's
Diagnostic Readout Box (DRB-II) tester is required to reset the
emission maintenance indicator light.
Reset Procedure
Using DRB-II tester, access SELECT SYSTEMS. Select
appropriate engine. Select with or without A/C. Select FUEL &
IGNITION. Select ADJUSTMENTS. Select RESET EMR LIGHT. Reset EMR light.
When DRB-II is finished resetting light, DRB-II display will read EMR
LIGHT IS RESET.
Page 1291 of 1378
NOTE: Idle mixture adjustment is not possible on TBI models.
COLD (FAST) IDLE RPM
NOTE: Fast idle is not adjustable on TBI models.
SERVICING
EMISSION CONTROL
See EMISSIONS section.
SPECIFICATIONS
IGNITION
Distributor
All models are equipped with Renix solid state ignition.
IGNITION COIL RESISTANCE - OHMS @ 75
F (24C) \
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Application Primary Secondary
2.5L ........................ .4-.8 .................... 2500-4000
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FUEL SYSTEM
FUEL INJECTION \
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Application Model
2.5L ..................................................... Renix TBI
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Fuel Pump
The 2.5L engine with TBI uses an electric fuel pump located
in the tank.
FUEL PUMP SPECIFICATIONS
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Application Pressure: psi (kg/cm) Volume: Pts. (L)
2.5L (TBI) .............. 14.5 (1.0) ......................... N\
/A
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BATTERY
BATTERY SPECIFICATIONS \
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Application Cold Cranking Reserve Capacity
** ( 1) Amps Minutes
Standard ..................... 421 ............................ 75
Optional ..................... 452 ............................ 81
( 1) - At 0
F (-18C). \
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STARTER
Page 1304 of 1378
![JEEP CHEROKEE 1988 Service Repair Manual (1) - Information not available from manufacturer. \
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IGNITION](/manual-img/16/57037/w960_57037-1303.png "JEEP CHEROKEE 1988 Service Repair Manual (1) - Information not available from manufacturer. \
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IGNITION")
(1) - Information not available from manufacturer. \
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IGNITION COIL
IGNITION COIL OUTPUT TABLE @ 1000 RPM \
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Application Output
All Models .................................. 24KV Minimum
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IGNITION COIL RESISTANCE TABLE \
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Temperature Primary Ohms Secondary Ohms
75
F (24C) .......... 1.13-1.23 ............. 7700-9300
200F (93C) ............ 1.5 ................... 12,000 \
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FUEL SYSTEM
CARBURETORS & FUEL INJECTION TABLE \
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Application Model
4.0L ................................................ MPFI
4.2L ................................... Carter BBD 2-Bbl.
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BATTERY
BATTERY SPECIFICATIONS TABLE \
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Application Cold Cranking Reserve Capacity
** ( 1) Amps Minutes
Standard ................ 421 ....................... 75
Optional ................ 452 ....................... 81
( 1) - At 0
F (-18C). \
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STARTER
All models equipped with Mitsubishi starters.
STARTER SPECIFICATIONS TABLE
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Application Volts Amps Test RPM
All Models ...... 11.22 .......... 80 ........... 2500
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ALTERNATOR
All models use Delco-Remy solid state alternators with
internal voltage regulator.
ALTERNATOR SPECIFICATIONS TABLE
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Application Field Current Rated