Check these things, If the engine oil pressure is below specifications, inspect the engine for 1 or more of the following conditions:
" Oil pump worn or dirty
" Refer to Oil Pump Cleaning and Inspection.
" Oil pump-to-engine block bolts loose
" Refer to Oil Pump, Screen and Crankshaft Oil Deflector Installation.
" Oil pump screen loose, plugged, or damaged
" Oil pump screen O-ring seal missing or damaged
" Malfunctioning oil pump pressure relief valve
" Excessive bearing clearance
" Cracked, porous, or restricted oil galleries
" Oil gallery plugs missing or incorrectly installed
" Refer to Engine Block Plug Installation.
" Broken valve lifters
" Repair as necessary.
If the oil pressure reading on the J 21867, or equivalent, is within specifications, inspect for the following conditions:
" Plugged or incorrect oil filter and/or malfunctioning oil bypass valve
" Malfunctioning oil pressure gage or sensor
here is the oil pressure spec, Oil Pressure - Minimum - Hot 6 psig at 1,000 engine RPM
18 psig at 2,000 engine RPM
24 psig at 4,000 engine RPM
if all this checks good you might have a problem in the guage itself in the IPC. Post back with any other questions.
Friday, May 8th, 2009 AT 12:49 PM