1996 International Truck electrical

HC15410

MEMBER
1996 INTERNATIONAL TRUCK
7.8L
V8
TURBO
2WD
AUTOMATIC
63,000 MILES

444e engine; both batteries terminals corroded, cleaned terminals. Connected cables, wipers started to work with key off and control knob off, will not stop, jiggled wires and wipers stopped. Gauges sweep & buzzer activates without key on. Have to disconnect cable. Noticed one of wires arcing, broken insulation? Taped it up. Problem not cured. Both battery cables go to starter, negative to solenoid, positive to starter. Neither grounded, why? Any ideas?

2 Replies

HMAC300

MECHANIC
48,601 POSTS

We don't do medium duty truck shere but where the negative is connected to starter is probably a mounting bolt not a hot circuit. Clean that and then run a nother large (10 gauge) negative wire from engine to body or cab. That should cure the wiper and maybe the buzzer.