PCV ELBOW MAY BE LOOSE CAUSING VACUUM LEAK AND CODE 35

PCV VALVE RUBBER ELBOW-LOOSE/DISCONNECTED

1987 6000, GRAND AM AND FIERO MODELS WITH 2.5L L4 ENGINE (VIN CODES R AND U)

Some 1987 6000, Grand Am and Fiero models with 2.5L L4 engines (VIN Code R and U) may experience vacuum leaks and subsequently set a Code 35 in the ECM.

This condition may be caused by a disconnection of the rubber elbow from the PCV valve which could have occurred during vehicle assembly and/or during repair.

If an engine is diagnosed through normal service procedures as having a loose or disconnected PCV valve rubber elbow, install a clamp P/N 10044319, in the location shown (See Diagram). Crimp the clamp with tool J35566 or equivalent.

NOTICE: 1987 6000, GRAND AM AND FIERO MODELS RECEIVED ON DEALERSHIP LOTS AFTER MARCH 1, 1987 HAD THE CLAMP FACTORY - INSTALLED.

Use applicable labor operation and time.

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.