GROUP 7 TRANSMISSION MULTIPLE SUBJECTS / MISC ITEMS. Cadillac DeVille 1982

GROUP 7 - TRANSMISSION - MISCELLANEOUS ITEMS

1. HIGH SHIFT POINTS - 1982 "C" CARS WITH 5.7L DIESEL AND 350C TRANSMISSION

1982 "C" cars equipped with the 5.7 liter diesel engine and 350C transmission may experience higher than normal or delayed transmission shift points. This condition may be caused by low vacuum at the modulator due to a disconnected or damaged EGR valve vacuum hose on the underside of the air cleaner.

2. OIL PRESSURE CHART REVISION - THM 200-4R

The THM 200-4R transmission (model OM) replaced the THM 350-C transmission on 1982 "C" cars equipped with the 5.7 liter diesel engine during mid-November, 1982 production. The line pressure readings for the OM model differs from those of all other THM 200-4R transmission models used in 1981 through 1983 Cadillacs. The following chart is a supplement to the line pressure reading chart on Page 200-4R-3 of the 1982 Cadillac Service Information Manual for model OM transmissions.

Normal Oil Pressure Normal Oil Pressure Range at Minimum TV at Full TV kPa PSI kPa PSI

Park and Neutral 450-520 65-75 795-1000 115-145 at 1000 RPM

*Reverse at 795-1000 115-145 1485-1830 215-265 1000 RPM

*Drive and Manual 450-520 65-75 795-1000 115-145 Third at 1000 RPM

*Manual Second and 930-1140 135-165 930-1140 135-165 Lo at 1000 RPM

(*NOTICE: Total combined running time not to exceed 2 minutes.)

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.