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Oil Cooler Warranty ??
I have a 04 F350 83,000 miles and have purchased the 7 yr 200,000 Ford EW. Also installed a coolant filter 2 years ago at 51,000 miles.
I have no overt engine symptoms, but I installed a Insight OBD monitor and can now read ECT and EOT.
Pulling 14,000 # 5th wheel up a 6 percent 7 mile grade, I get ECT 208 to 217 and EOT 239 to 242. The differences ranging 23 to 26 degrees.
On a hilly/flat road I get ECT of 192 to 207 and EOT of 229 to 239. The differences ranging from 22 to 31 degrees . The greatest difference was on tip outs when the EOT are catching up to the cooler ECT.
On a flat road ECT average 195 and EOT average 215 for a 20 degree difference.
TSB 09-8-3 requires a cooler replacement if the difference exceeds 15 degrees. But htis TSB is for a loss of coolent. I have not lost any coolant.
Given I have no overt symptoms, has anyone had a cooler replace under similar conditions or does any tech think Ford would replace the cooler given these readings ?? Bob
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