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.
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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.