Celebrity L4-151 2.5L (1982)
Oil Filter: All Technical Service Bulletins
Oil Filter Bypass Valve - Revised
Number:
83-I-99
Section:
VI
Date:
July, 1983
Subject:
OIL FILTER BYPASS VALVE 2.5L L4
ENGINE
(VIN CODE R) - 1982-83
CELEBRITY AND CITATION
TO:
ALL CHEVROLET DEALERS
Check Valve Assembly
When a repair requires replacement of the engine block, it will be necessary to remove the oil filter bypass valve assembly and reinstall it
in the new block. If a new oil filter bypass check valve assembly is required, it will be necessary to order P/N 25010497 thru WDDGM
(refer to the illustration below).
