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2009 Chevrolet Avalanche LS, Engine/Propulsion Waveform
Posted to the Waveform Library on 7/24/2017

known bad compression test using pressure transducer, the spike is not nearly as large as it should be indicating no compression, it had no compression due to it couldn't suck in air, had a collapsed intake lifter.

 

car Vehicle Data

2009 Chevrolet Avalanche LS 5.3L

Engine5.3 L / 8 cyl / FLEX
Trans6-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemEngine/Propulsion
Component
ConditionKnown Bad

car Vehicle Data

2009 Chevrolet Avalanche LS 5.3L

Engine5.3 L / 8 cyl / FLEX
Trans6-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemEngine/Propulsion
Component
ConditionKnown Bad