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.
1990 Geo Tracker Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Coasting Check (Modulator Connected)
With vehicle coasting at 30 MPH (foot off throttle), pressure gauge installed and vacuum modulator line connected, transmission line pressure should be approximately as shown in COASTING CONTROL PRESSURES .
COASTING CONTROL PRESSURES
| Shift Lever Position | (1) psi (kg/cm2 ) | ||
|---|---|---|---|
| Drive ("D") | 65 (4.6) | ||
| Intermediate ("L2") | 65 (4.6) | ||
| Low ("L1") | 95 (6.7) | ||
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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.