Okay so I know I said I wasn't going to worry about it, but I'm a little concerned.
Just had new OEM oil cooler after having one put in last year along with a BPD EGR cooler, and still having super high oil temps 250*-ish I was already $2k into, still the same problem so I parked the truck after only putting about 50 miles on it.
Last month I took it in for ANOTHER OEM oil cooler, found out it needed HGs. So HGs, ARPs, OEM oil cooler, $4,700 I'm down the road.
Now with just about 200 miles on the truck since all the work, I'm seeing 220-ish EOT, ECT is usually
6-8* behind. Now I understand that it's hot out (96-98) and that affects it somewhat, but I saw this today
Now the coolant temp fluctuates but as many as 12*, the fan comes on if the ECT hits 220* and drops it back down to about 216*
The EOT does fluctuate, but only by 3 or 4* at best. I'm wondering if I might have a weak waterpump. Anyone else?