B4000 Regular Cab 4WD V6-4.0L OHV (1997)
Throttle Body: Testing and Inspection
Throttle Body
Inspection
1. Check the throttle body for wear and deposits.
2. Verify that the throttle valve moves smoothly when the throttle lever is moved from fully closed to fully open.
3. Replace the throttle body, if necessary.
CAUTION: The throttle body must not be cleaned. A sealant coating covering the throttle bore and throttle valve makes the throttle body tolerant
to engine intake sludge accumulation.
