Sierra Classic 2500 4WD V8-8.1L (2007)
![background image](/gmc/sierra_classic_2500_4wd/v8-8.1l/Page-1069001.png)
Compression Check: Specifications
The minimum compression in any 1 cylinder should not be less than 70 percent of the highest cylinder. No cylinder should read less than 690 kPa (100
psi)
Compression Check: Specifications
The minimum compression in any 1 cylinder should not be less than 70 percent of the highest cylinder. No cylinder should read less than 690 kPa (100
psi)