B4000 SE Regular Cab 4WD V6-4.0L OHV (1999)
Windshield Washer Pump: Testing and Inspection
1. Check the washer pump current draw.
When the washer pump is pumping fluid, the current draw should be between 1.7 and 4 amps.
2. If current draw is out of specification, replace the washer pump.
