B3000 SE Regular Cab 4WD V6-3.0L OHV (1998)
Drive Belt Tensioner: Testing and Inspection
BELT TENSIONER INSPECTION
The automatic drive belt tensioner can be checked as follows:
1. With the engine running, observe the drive belt tensioner movement.
2. Activate A/C compressor clutch or accelerate sharply. If the drive belt tensioner movement is constant without A/C clutch cycling or acceleration,
a pulley or shaft is probably bent or a pulley is out of round. In rare cases, excessive drive belt rideout (uneven depth of grooves in drive belt) can
cause excessive drive belt tensioner movement. This condition can be checked by replacing the suspect drive belt with a known good original
equipment drive belt and repeating the observation.
