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1999 Chevrolet K2500, Vacuum/Pressure/Flow Scandata
Posted to the Waveform Library on 5/3/2005

These graphs from the snap-on solus show the exactness in the relationship between the pcm and the pressure control solenoid. The duty cycle and the actual amperage draw are mirror images on the graphs above.

 

car Vehicle Data

1999 Chevrolet K2500 7.4L

Engine7.4 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemTransmission
Component
ConditionKnown Good

car Vehicle Data

1999 Chevrolet K2500 7.4L

Engine7.4 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemTransmission
Component
ConditionKnown Good