EXH. MANIFOLD S.I.R. FITTING LOOSE (REPLACE BRASS PLUG)

SUBJECT: EXHAUST NOISE FROM ENGINE COMPARTMENT - (REPLACE FITTING AND PLUG

VEHICLES AFFECTED: 1990 C,E,K MODELS

Some DeVilles, Fleetwoods, Eldorados and Sevilles with California emissions (option NB2) may experience exhaust leak noise from the engine compartment. This condition may be caused by a loose or missing brass fitting and plug in the left exhaust manifold.

To repair this condition remove fitting and plug and replace with plug, P/N #444625. Do not use any sealer or plug during installation.

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.