LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 1975 >> Skyhawk Base, Automatic Trans >> Repair and Diagnosis >> Electrical >> Body Electrical >> Windshield Wipers - Pulse System >> Testing >> Pulse Wiper Circuits >> Wiper Stops Intermittently During Run Modes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Wiper Stops Intermittently During Run Modes

  1. Remove wiper system fuse and connect an ammeter (0-30 Amps.) across fuse block terminals. On Oldsmobile and Buick models, remove connector from wiper terminals "6" & "7", and connect a jumper from terminal "6" to ground. Operate wiper in "LO" speed and cycle washer system. About two minutes after completion of wash cycle, with wiper still operating, observe lowest current draw reading.
  2. If lowest current draw is 5 to 6.5 Amps., a weak motor circuit breaker is indicated, replace breaker and recheck wiper. If lowest current draw exceeds 6.5 Amps., replace blade elements and repeat test. If lowest current draw is below 6.5 Amps., system is operating correctly.
  3. If lowest current reading still exceeds 6.5 Amps., disconnect wiper arm linkage and repeat current draw test. If current draw is now below 6.5 Amps., check for binding in wiper linkage. If current draw still exceeds 6.5 Amps., remove wiper unit from car and check armature end play, gear binding, armature binding and/or shorted.
scientia non olet · About LEMON Manuals