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.
1989 Geo Tracker L4-1590cc 1.6LFACTORY OEM SERVICE PROCEDURE
Text Description
4WD Switch: Top of Transmission
Charcoal Canister: RH Front Of Engine Compartment
Control Relay: Under LH Side Of I/P
ECM: Under LH Side Of I/P
EGR Modulator: RH Side Of Engine
EGR Valve: RH Side Of Engine
Fuel Filter: Under RH Rear Of Vehicle
Fuel Pressure Regulator: Front Of Engine
Fuse Box: Under LH Side Of I/P
Ignition Coil: LH Side Of Cowl
Inlet Air Temperature Sensor: RH Side Of Engine
ISC Solenoid: RH Side Of Engine
Load Sensing Proportioning Valve: Under RH Side Of Vehicle
Main Switch: RH Rear Corner Of Engine Compartment
Oxygen Sensor: In Exhaust Manifold
Pressure Sensor: Mounted To RH Side Of Cowl
PTC Heater Relay (Automatic Transmission): RH Side Of Engine Compartment
Recirculated Gas Temperature Sensor: RH Side Of Engine
Shift Switch (Automatic Transmission): RH Side Of Transmission
Throttle Opener Vacuum Switching Valve: Front Of Engine
Throttle Position Sensor: Front Of Throttle Body
Vacuum Switching Valve: RH Side Of Engine
Washer Pump Assembly: Mounted To Windshield Wiper Reservoir
Water Temperature Gauge: RH Side Of Engine
Water Temperature Sensor: RH Side Of Engine
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
