Simple and quick questions on oil cooler failures for those who have done EGR delete and those who haven't. The questions are broken into two categories, EGR delete and NO EGR delete. Please enter if you are a category #1 or #2 and answer the questions associated. Thanks to those who respond.

1) For those who have done EGR delete, have you had oil cooler failures after the delete? If so, was your oil cooler changed at the time you did the delete? If so, how many miles between oil cooler failures? Do you have a coolant filter installed? How many miles on your current oil cooler?

2) For those who have NOT done the EGR delete, have you had oil cooler failures? How many miles between oil cooler failures? Do you have a coolant filter installed? How many miles on your current oil cooler?

Note: oil cooler failures to include clogging oil cooler resulting in excessive temp deltas, blown EGR Cooler, blown Oil Cooler.

 

Cat# 2. no OC failures. Coolant filter installed.

 

Sorry, I should have also asked in each category:
How many miles on your current oil cooler?
I will edit the question to include this.

 

Cat #2: NO EGR delete. I have new BPD oil & egr coolers
(6k miles on both)

Coolant filter on for 12k miles - since I bought it (my first mod).

 

#1 Deleted at 88k miles, original oil cooler no problems. 98k miles now
Coolant filter since 38k miles
EOT-ECT delta = 13

 

What's your definition of an oil cooler failure? Rupture or excessive temp delta?

 

#2. Oil cooler clogged (No Failure ) BPD EGR cooler and new OEM oil cooler at 92,000. Dieselsite coolant filter since 5,000. Only 1,000 since. Just towed 16K this morning. All temps great.

 

Good point and whether coolant was changed at all might skew the results.

 

#2: Coolant filter installed @ 9990 miles. Coolant changed/flushed at 72539 miles. No chemical cleaners used, just distilled water. Oil cooler replaced at 82766 miles due to excessive temp delta. Currently sitting at 102690 miles. Original EGR cooler still installed but strongly considering deleting in the near future.

 

Thanks guys. Yes, I was inquiring as to failure being either clogged (temp delta) and/or blown EGR/Oil Cooler. I believe a blown oil or EGR cooler are both resulting from clogged oil cooler. Of course you can't ignore the influence on results from a coolant filter, so that is in the mix as well.
I will edit the original post to show my definition of oil cooler failure.
What I am trying to determine is if there is any indication that the EGR cooler might be a possible cause of oil cooler clogging and subsequent problems. I have been considering which way I want to go, EGR in or EGR out, in the future. I thought it might be good intel for others with the same decision.

 

#2-EGR cooler replaced around 30,000 and original oil cooler partially plugged now with high Delta temps. Going to replace soon. No coolant filter but will add with this replacement.

 

2004 250- Oil cooler replaced at 42,000 miles (Head stud failure). Dealer would not replace EGR cooler. Coolant filter at 44,000 miles. EGR deleted (blocked) at 47,000. Flushed system and new Motorcraft Gold at 54,000 miles. Second oil cooler failure at 59,000. Delta up to 25 degree difference.

 

This is disturbing to me... Did you remove the EGR cooler when blocking off EGR? Just curious.

Please keep it coming guys.

 

Did they replace the oil cooler when replacing the EGR cooler? I assume they did, but didn't see it in the post. From what I have gathered, the oil cooler should always be replaced when EGR cooler is replaced...
I digress. Here I go highjacking my own thread.

 

CAT#1 Completely deleted egr cooler at 50,000 miles no failure deleted it before had the chance to fail. Changed oil cooler to Fords new Stock replacement due to 20 degree temp delta at 70,000 oil and coolant now stay within 5 degrees of each other usually around 196-202. Neither failed on me i just deleted and changed for fear of failure. Have had ZERO problems with anything. Recommend deleting EGR cooler and Changing oil cooler then doing a coolant flush before installing coolant filter kit due to waste of coolant filter. I have the Diesel Site coolant filter and the Sinister EGR Delete kit. Both very easy to install and just time consuming. oil cooler was a little more difficult but still done in driveway.