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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSSATURN2000LW1 L4-2.2L VIN FREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINECOMPRESSION CHECKTESTING AND INSPECTION
2000 Saturn LW1 L4-2.2L VIN F
Compression Check: Testing and Inspection
2000 Saturn LW1 L4-2.2L VIN FSECTION Testing and Inspection
Perform the following steps in order to conduct a compression test for the L61.
1. Conduct the following steps in order to check cylinder compression.
a. Engine should he at room temperature.
b. Disconnect wiring from the ignition module.
c. Remove the spark plugs.
d. Throttle body valve should be wide open.
e. Battery should be at or near full charge.
2. For each cylinder, crank engine through four compression strokes.
3. The lowest reading cylinder should not be less than 70% of the highest.
4. No cylinder reading should be less than 689 kPa (100 psi).
IMPORTANT: The results of a compression test will fall into the following categories:
- Normal-Compression builds up quickly and evenly to specified compression on each cylinder.
- Piston Rings - Compression low on first stroke. Tends to build up on following strokes but does not reach normal. Improves considerably with addition of oil.
- Valves - Compression low on first stroke. Does not tend to build up on the following strokes. Does not improve much with the addition of oil. Use approximately three squirts from a plunger-type oiler.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.