2007 Chevrolet Suburban 1500 LS, Engine/Propulsion Waveform

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Posted to the Waveform Library on 10/25/2020

The top trace CH D is the relative compression

The bottom trace CH C is a WPS500 in cylinder 7, the intake lifter is collapsed and the intake valve is not opening. The cranking compression measures 16 psi. The bottom of the expansion stroke vacuum pocket and ...

Vehicle Data

2007 Chevrolet Suburban 1500 LS 5.3L

Engine	5.3 L / 8 cyl / FLEX
Trans	4-speed AutomaticTransmission (Electronic)
Delivery	Fuel Injection
Subsystem	Engine/Propulsion
Component	Vacuum/Pressure/Flow
Condition	Known Bad

References

TECH: All cyl misfire on start

Vehicle Data

2007 Chevrolet Suburban 1500 LS 5.3L

Engine	5.3 L / 8 cyl / FLEX
Trans	4-speed AutomaticTransmission (Electronic)
Delivery	Fuel Injection
Subsystem	Engine/Propulsion
Component	Vacuum/Pressure/Flow
Condition	Known Bad

References

TECH: All cyl misfire on start