GM Service Manual Online
For 1990-2009 cars only

CS-121 & CS-130 GENERATORS SERVICED BY REPLACEMENT

VEHICLES AFFECTED: 1986-87 ALL WITH CS 121 AND CS 130 GENERATORS

1986 CARLINE NAMEPLATE

A (3.8L WITHOUT AIR COND.) BUICK, OLDS N BUICK, OLDS, PONTIAC Y CHEVROLET M-VAN GM TRUCK S/T (2.8L ONLY) GM TRUCK

1987 A BUICK, CHEVROLET, OLDS, PONTIAC F CHEVROLET, PONTIAC J BUICK, CADILLAC, CHEVROLET, OLDS, PONTIAC L CHEVROLET N BUICK, OLDS, PONTIAC P (2.5L ONLY) PONTIAC Y CHEVROLET CK TRUCK GM TRUCK

GVAN (5.7L WITH L-05, 4.3L GM TRUCK AND 5.OL ONLY) M-VAN GM TRUCK P (5.7L AND 7.4L ONLY) GM TRUCK S/T GM TRUCK

Delco Remy CS-121 and CS-130 generators are serviced only by replacement with a completely assembled remanufactured generator. Disassembly is not authorizg!d, and there are no service parts available.

Accordingly, the only labour code applicable to removing and replacing the CS-121 and/or CS-130 generators is labour code J4100.

NOTICE: CS-121 AND CS-130 GENERATORS CAN BE IDENTIFIED BY THE AMPERE RATING STAMPED ON THE END FRAME: CS-121 - 55, 61, 65 AND 74 AMPS CS-130 85, 96, 100 AND 105 AMPS

Service parts are available for CS-144 and "SI" series generators.

(NOTICE TO VEHICLE DIVISIONS: DELCO REMY RECOMMENDS THAT WARRANTY LABOUR CLAIMS FOR CODES OTHER THAN J4100 FOR CS-121 AND CS-130 DELCOTRON MDELS BE DISALLOWED.)

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.