Suburban 3/4 Ton 4WD V8-305 5.0L (1986)
To Use Diagnosis Tree:
Locate symptom on the diagnosis tree which best describes the disturbance. Follow arrows and perform the required check or service action. Never
bypass or skip an inspection or assume that a component is OK. All steps must be performed as called out.
Definition of Terms:
"Boom"
- Continuous bass drum roll sound caused by body cavity resonance
excited by drivetrain. Sometimes felt as pressure in ears.
"Buffeting"
- High pressure pulsation.
"Droning"
- A low heavy reverberating often muffled sound. Sounds like a bowling
ball rolling down alley.
"Drumming" -
A drum roll similar to "Boom."
"Howling"
- A mid-range continuous sound usually associated with driveline gear
noise.
