A/T - Low Oil Pressure or Oil Pump Cavitation Noise

Number: 83-T-62

Section: VIIc

Date: July, 1983
Subject: DIAGNOSING LOW OIL PRESSURE OR OIL PUMP CAVITATION NOISE - THM 700-R4
TO: ALL CHEVROLET DEALERS


When diagnosing low oil pressure or oil pump cavitation noise on a THM 700-R4 transmission, check the following items:


INSPECT

1. Oil filter "O" ring for nicks or cuts. Replace with P/N 8619568 if necessary.

2. Oil filter body for hairline cracks and neck for flash or blockage. Replace with P/N 8642933 if necessary.

3. If the oil filter shows signs of wear at the point it contacts the oil filter retaining clip, replace the filter with P/N 8642933 and the clip with P/N 8642422 if necessary.