1993 Isuzu Trooper LS, AutomaticFACTORY OEM SERVICE PROCEDURE

Service Intervals & Specifications: Notes

REPLACEMENT INTERVALS

Component Miles
Air Filter 30,000
Automatic Transaxle Fluid 30,000
Automatic Transmission Fluid (1) 20,000
Coolant 30,000
Front & Rear Axle Oil 30,000
Manual Transaxle Oil
Stylus 30,000
Manual Transmission Fluid
All Models 15,000
Oil & Filter 7500
Oxygen Sensor
Amigo, Pickup, Rodeo & Trooper 2.6L 90,000
Spark Plugs 30,000
Timing Belt 60,000
Transfer Case Oil 30,000
(1) Fluid requires replacement only under severe operation. Severe operation is driving on rough dusty roads or repeated short trips.
VALVE CLEARANCE ADJUSTMENT INTERVALS

Application Miles
Amigo, Pickup & Rodeo
2.3L & 2.6L 15,000
3.1L (1)
Rodeo 3.2L & Trooper (2)
Stylus
1.6L 15,000
1.8L 60,000
(1) Adjustable hydraulic valve lifters are used. Clearance adjustment is not part of regular maintenance schedule. See appropriate ON-VEHICLE ADJUSTMENTS article.
(2) Hydraulic lash adjusters are used. No adjustment is required.
DRIVE BELT ADJUSTMENT (1)

Application Specification
Belt Deflection (2)
Amigo, Pickup & Rodeo 2.6L
All Belts .375" (10 mm)
Rodeo 3.2L & Trooper
A/C Belt .315" (8 mm)
Alternator & Power Steering Belt N/A
Belt Tension (4)
Rodeo 3.2L & Trooper
A/C Belt 100-140 lbs. (45-64 kg)
Alternator & Fan Belt 100-120 lbs. (45-54 kg)
P/S Belt 70-110 lbs. (32-50 kg)
Stylus (3)
A/C & P/S Belts
New Belt 130-160 lbs. (59-73 kg)
Used Belt 120-150 lbs. (54-68 kg)
Alternator Belt 70-110 lbs. (32-50 kg)
(1) Some models are checked by belt deflection; other models are checked using belt tension gauge.
(2) Deflection is checked with 22 lbs. (10 kg) pressure applied midway on longest belt run.
(3) Serpentine belt tension is automatically adjusted.
(4) Belt tension checked with belt tension gauge.
BATTERY SPECIFICATIONS

Application & Group CCA Rating
Amigo & Pickup
A/T (24)
Delco 600
Except Delco 582
M/T (25)
Delco 430
Except Delco 356
Rodeo (24/86) 600/430
Stylus (25R) 356
Trooper (24/27) 490, 582/622
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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