Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1992 Isuzu Trooper LS, AutomaticFACTORY OEM SERVICE PROCEDURE
Spark Plugs
SPARK PLUG TYPE
| Application | NGK/AC | |
|---|---|---|
| Amigo | BPR6ES-11/R42XLS | |
| Pickup & Rodeo | ||
| 2.3L & 2.6L | BPR5ES-11/R43XLS | |
| 3.1L | R43TSK | |
| Impulse | ||
| Non-Turbo | BKR6E-11 | |
| Turbo | BKR6E | |
| Stylus | ||
| SOHC | BPR6ES-11/R42XLS | |
| DOHC | BKR6E-11 | |
| Trooper | BPR5ES-11/R43XLS | |
SPARK PLUG SPECIFICATIONS
| Application | Gap In. (mm) | Torque Ft. Lbs. (N.m) | |
|---|---|---|---|
| Amigo, Pickup & Rodeo | |||
| 2.3L & 2.6L | .040 (1.02) | 14 (19) | |
| 3.1L | .045 (1.14) | 14 (19) | |
| Impulse | |||
| Non-Turbo | .040 (1.02) | 14 (19) | |
| Turbo | .030 (.75) | 14 (19) | |
| Stylus & Trooper | .040 (1.02) | 14 (19) | |
Factory Service Tools
Use the Manual With the Right Hardware
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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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