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HOMESERVICE MANUALSCHEVROLET2002CHEVY EXPRESS G3500, VAN PASSENGER EXTENDED, 8.1 GREPAIR AND DIAGNOSISENGINE PERFORMANCESPECIFICATIONSENGINE CONTROLS - SERVICE & ADJUSTMENT SPECIFICATIONSMECHANICAL CHECKSENGINE COMPRESSION
2002 Chevrolet Chevy Express G3500, Van Passenger Extended, 8.1 G

Engine Compression

2002 Chevrolet Chevy Express G3500, Van Passenger Extended, 8.1 GSECTION Engine Compression
ENGINE COMPRESSION SPECIFICATIONS

Application Specification - psi (kPa)
Normal Compression Pressure
2.0L 199 (1372.1)
2.2L
Sonoma & S10 Pickup (1)
VUE 185-225 (1275.6-1551.4)
2.5L 199-227 (1372.1-1565.2)
3.0L 180-190 (1241.1-1310.1)
4.2L 215 (1482.4)
4.3L (2)
4.8L, 5.3L & 6.0L
Except Sierra & Silverado (1)
Sierra & Silverado (2)
5.0L & 5.7L (2)
6.5L (2)
6.6L (2)
All Others (1)
Minimum Compression Pressure
2.0L 170 (1172.2)
2.2L
Sonoma & S10 Pickup (1)
VUE 185 (1275.6)
2.5L 185 (1275.6)
3.0L 100 (689.5)
4.2L (3)
4.3L (2)
4.8L, 5.3L & 6.0L
Except Sierra & Silverado (1)
Sierra & Silverado (2)
5.0L & 5.7L (2)
6.5L (4) 370 (2551.2)
6.6L 300 (2068.5)
All Others (1)
Compression Variance
2.0L & 2.5L 15 (103.4)
6.6L 50 (344.8)
All Others (2)
(1) Lowest compression reading should not be less than 70 percent of highest compression reading. No cylinder compression reading should be less than 100 psi (689.5 kPa).
(2) Information is not available from manufacturer.
(3) Lowest compression reading should not be less than 70 percent of highest compression reading.
(4) Subtract 8 psi (55.2 kPa) for every 1000 ft. (304.8 M) of elevation above seal level. Measurement is taken with cold engine speed of at least 100 RPM, or hot engine speed of at least 180 RPM.
RENDER: 1.0x

NO RELATED

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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.