High Deltas EOT/ECT after oil cooler replacement

[BDSford03]

I have searched and searched and even read through the 54 page thread about this and havent found what i need to know.

I did a full "flush and fill" then did chemical flushes with restore and restore plus prior to beginning any work. used 30 gallons of water.

I replaced the oil cooler (oem), thermostat (oem), oil (amsoil) and filter (motocraft), and coolant filter (napa). Using Cat 1 ELC zerex.

Problems:
1. Oil filter housing doesn't drain oil (maybe unrelated)
2. ECT is around 190-192 with EOT up to 210-215. cruising at 65mph.
3. Pigtail for oil temp sensor has copper showing. Ill post a pic when yahoo decides to work.

Any ideas why my oil temp is 20*+?

[Jarrod B]

Your drain valve in the housing is bad if it doesn't drain.

[BDSford03]

Originally Posted by Jarrod B

Your drain valve in the housing is bad if it doesn't drain.

When I had it apart it was opening and closing like it should, I also sprayed it clean and it was draining out of the valve.

[BDSford03]

[Jarrod B]

It would be good to redo that pigtail tho.


But there has to be a oil flow restriction somewhere.


Or not enough coolant making it to the oil cooler.

[BDSford03]

Ya that's what I was thinking. I cleaned both filter housing and cooler housing and checked all holes and passages.

[BDSford03]

I don't want to say it but is it possible the new oil cooler is bad? I have drove less than 100 miles so far.

Ill double check and make sure the sensors read close to each other in the morning. I got the pigtail taped up for now (until I can find the right one since ford doesnt list it)

[BDSford03]

Talked to another member with the same problem other than even higher temps. For him it was bad oil cooler from ford an his radiator had 5* diff from top to bottom (got clogged in the flush).

[Jarrod B]

I guess that is possible. I just haven't heard of a bad cooler before.

Now how to tell Ford their cooler is bad idk.

Mine is under 10* hwy and I did mine like almost 2 months ago.

[BDSford03]

Sensors read within 3 degrees of each other after sitting overnight.