Compression Ignition Addict
Join Date: Oct 2011
Location: Tehachapi, CA
Thanked 94 Times in 92 Posts
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It could be from the oil cooler or the High Pressure Oil Rail End Plug (there is one on each end of each cylinder head ... so 4 total for an engine). They are common leakers.
Oil Rail End Plugs (large plugs at each end of heads; incl. O-rings, use LOCTITE #11747 to seal threads)
(Ford) Same number as International
1997 F250 SC 4x4, E4OD, 4.10 LS, Basically Stock, Relocated Block Heater Plug, External Trans Filter, Tru-Cool Max, I/C Mounted but not Plumbed
SOLD - 1994 F350 CC DRW 2WD PSD, 5 Speed, 4.10 LS, SBC Con-O, Baldwin Filter, Tymar HPX Hose, DPPI DP, Bilsteins, $12 AIC, Coolant Filter, Explorer Overhead Console, A-Pillar w/ISSPRO Black Ice, EV Boost, and EV Pyro, Modified Pedestal, Gutted EBPV.