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.
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HOMESERVICE MANUALSTOYOTA19944RUNNER 2.4 R, R150FREPAIR AND DIAGNOSISENGINE PERFORMANCESPECIFICATIONSENGINE CONTROLS - SPECIFICATIONS - V6MECHANICAL CHECKSENGINE COMPRESSION
1994 Toyota 4Runner 2.4 R, R150F
Engine Compression
1994 Toyota 4Runner 2.4 R, R150FSECTION Engine Compression
Check engine compression with engine at normal operating temperature at specified cranking speed, all spark plugs removed and throttle wide open.
COMPRESSION SPECIFICATIONS
| Application | Specification |
|---|---|
| Compression Ratio | 9.0:1 |
| Compression Pressure | 171 psi (12.0 kg/cm2 ) |
| Minimum Compression Pressure | 142 psi (10.0 kg/cm2 ) |
| Maximum Variation Between Cylinders | 14 psi (1.0 kg/cm2 ) |
RENDER: 1.0x
NO RELATED
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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.