Regal V6-231 3.8L Turbo VIN 8 4-bbl (1983)
Torque Converter: All Technical Service Bulletins
A/T - Whine Noise in First, Second and Reverse Gears
Model Year 1983
Bulletin No.
83-148
File In Group
70
Number
22
Date
July '83
SUBJECT:
WHINE NOISE IN FIRST, SECOND AND REVERSE
MODELS AFFECTED: 1983 THM 200-C and 200-4R TRANSMISSIONS
Some 1983 THM 200-C and 200-4R transmissions may experience a noise condition that sounds like a high pitched whine. This noise condition may be
coming from the front internal gear assembly, and should not be confused with a torque converter bearing noise or a pump cavitation noise.
If diagnosing this condition, if the noise is noticeable in drive with the brake applied and the engine at approximately 1500 RPM, the cause could be a
torque converter bearing noise or an oil pump cavitation noise. If the whine noise is noticeable when driving the car in first, second and reverse only, the
cause could be the front internal gear.
When servicing any 1983 THM 200-C or 200-4R transmission for this whine noise condition and the cause has been diagnosed to be the front internal
gear, replace it with part number 8630909.
