ABOVE NORMAL VALVE TRAIN NOISE CAMSHAFT SEIZED/LOW OIL PRESS.

SUBJECT: ABOVE NORMAL VALVE TRAIN NOISE-CAMSHAFT SEIZED/LOW ENGINE OIL PRESSURE (REPLACE OIL FLOW CHECK VALVE)

MODELS/YEARS 1987-89 CUTLASS CALAIS WITH 2.3L ENGINES

This bulletin supplements Dealer Technical Bulletin 89-T-99, dated July 1989. Specifically, this supplement lists a revised labor time allowance for "Add" B.

WARRANTY INFORMATION:

Labor Operation Number: J0509 Labor Time: 6.9 hrs Add: A - Remove ball from top of block .1 B - Remove ball through front oil gallery plug .3 C - Remove ball from #1 crankshaft oil passage .8 D - Remove ball from #5 crankshaft oll passage .3 E - Remove ball from #4 crankshaft oil passage .3 F - Remove ball from #3 crankshaft oil passage .2 G - Remove ball from #2 crankshaft oil passage .2 H - To clean parts on vehicles over 30,000 miles if necessary .4

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.