E 350 Van L6-300 4.9L VIN E 1-bbl (1982)
Wiper Motor: Testing and Inspection
Fig. 2 Wiper Motor Current Draw Test
E-100---350 Series
1.
Disconnect wiper motor linkage.
2.
Connect positive lead from multimeter to center terminal on motor end plate and the green lead from tester to battery positive post, Fig. 2. Motor
terminals are too small to make necessary test connections without using connector sleeves and wires between motor terminals and tester.
Suitable connector sleeves should be crimped onto both ends of wires.
3.
Connect jumper wire from battery negative post to low speed terminal on motor end plate and read current draw, then move jumper wire from low
speed terminal to high speed terminal and read current draw.
4.
If current draw exceeds 3.5 amps, ensure that output arm or windlatch mechanism are not binding or damaged, and replace wiper motor.
