GM Service Manual Online
For 1990-2009 cars only

CHUGGLE NEW PROM INFORMATION

MODELS AFFECTED: 1984 REGALS WITH CALIFORNIA EMISSIONS AND 4.1L ENGINES (VIN CODE 4)

A new calibration PROM has been released for service use. Calibration changes have been made to correct customer concerns regarding chuggle.

Part number 1226914 should be ordered from WDDGM and installed should you have a customer comment in regards to chuggle. Normal replacement procedures should be followed as outlined in the 1984 Chassis Service Manual.

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.