ENGINE NOISE WORN PISTON PIN. Buick Skyhawk 1985

For 1990-2009 cars

# ENGINE NOISE WORN PISTON PIN

#### MODELS AFFECTED: 1985-86 SKYHAWKS WITH THE LQ5 2.OL OHV L-4 ENGINE (VIN CODE P)

A customer comment of engine noise that is identified as an internal reciprocating noise may or may not be caused by a worn piston/piston pin interface.

If the piston is suspected of causing a cold and hot noise complaint, then the piston/piston pin interface should be examined for wear, i.e., out-of-round or grooving. The service manual procedures in Section 6A should be followed for removal and inspection of the piston and pin.

If wear conditions indicate a need for piston and pin assembly replacement, then one of the following new piston and pin assemblies should be used for the respective cylinder:

Standard Piston/Pin Asm. = P/N 10103570 High-Limit Piston/Pin Asm. = P/N 10103571 0.5mm Oversize Piston/Pin Asm. = P/N 10103572 I.Omm Oversize Piston/Pin Asm. = P/N 10103573

Select the piston/pin assembly by using the procedure described under "Piston Fitting" in Section 6A of the service manual.

#### WARRANTY INFORMATION

Labor Operation Number: J1308 Labor Time: Varies with repair conditions. (Check Labor Time Guide) Trouble Code: 92

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