Skylark L4-138 2.3L DOHC VIN D MFI (1988)
9.
Thoroughly wash out oil pan and dry.
10.
Install new screen assembly to oil pump gasket, part number 22532023.
11.
Install screen assembly to oil pump.
12.
Install and tighten two (2) screen assembly to pump screws to 12 N-m (106 lbs.in.)
13.
Install and tighten screen assembly to block nut to 26 N-m (19 lbs.ft.)
14.
Install oil pan using new pan gasket.
15.
Refill engine with fresh engine oil.
16.
Remove oil pressure switch/sensor from end of exhaust cam carrier and install an accurate engine oil pressure gage.
17.
Start engine and observe oil pressure. Minimum pressure, cold engine:
40 psi.
18.
Remove oil pressure gage and install switch/sensor.
19.
Inspect for oil leaks.
Parts are currently available from GMSPO.
