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 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Engine Compression
COMPRESSION SPECIFICATIONS
| Application | Specification | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Compression Ratio | |||||||||
| Metro | |||||||||
| LSi | 9.8:1 | ||||||||
| Except LSi | 9.5:1 | ||||||||
| Prizm | (1) | ||||||||
| Spectrum | 9.6:1 | ||||||||
| Tracker | (1) | ||||||||
| Compression Pressure | |||||||||
| Metro | (1) | ||||||||
| Prizm | (2) 142-191 psi (10.0-13.9 kg/cm2 ) | ||||||||
| Spectrum | 128-179 psi (8.8-12.2 kg/cm2 ) | ||||||||
| Tracker | (3) 199 psi (14.0 kg/cm2 ) | ||||||||
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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.