Join Date: Nov 2007
Location: Georgetown, MA
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Oil Cooler replacement but temps still high?
Hi everyone. I did an oil cooler replacement for my friend on his '03. He was seeing a 16 degree delta normally, spiking to 20-22 degrees difference. I cut his cooler apart, it definitely had a bunch of silicate sludge in it. Upon replacement, he's still running around a 9-11 degree delta, and that's with a coolant filter, EC-1 coolant, recent thermostat replacement and no EGR system. Anyone know why he might be seeing temps like that? I did studs for him in December and I did a Restore flush prior to tear down so I doubt there's anything left as far as sludge in the cooling system. My oil cooler is 3 years old and I'm running a 4 degree difference and I have to do my HG's over again! Both trucks have Edge Insight CTS monitors, sinister EGR delete kits, 192 motorcraft T-stats, and 4" exhausts. I've got 146k and he's got 115k on mileage.
04 F350 Lariat FX4 PSD SCSB, SCT X3 tuned by innovative, Insight CTS, Silverline T409 Dual 4" Turbo back exhaust w/no muffler, AFE Stage I, Coolant filter, Sinister EGR delete, ARP's, Alpine W205 w/nav & rearview cam, 155's, Powermax, RR Fuel System, AirDog 150, Tubular Exhaust Manifolds, JL Audio Stealth box w/10" W3v3, Alpine amps x2, Alpine 5x7's all 4 corners, 20% tint, hard tonneau.