High EOT - after coolant loss event
Thread Starter
|
Cross-Country
Joined: Feb 2011
Posts: 68
Likes: 1
High EOT - after coolant loss event
2006 6.0
118k miles
Completely stock
I forgot to put the hose clamp back over the barb on the underside of the degas bottle... It popped off this weekend while on a trip, and lost ~3 gallons of coolant. Temps were quite elevated while i limped to town.
Refilled with 3ga of yellow (gold replacement).
My truck has always ran ~5-10° DeltaT, EOT to ECT.
Now, i'm getting 20, 30, even 40 deltaT.
ECT right at 190-195
EOT 215-230
I have 2hrs of driving with the new situation. No white smoke, truck is running great aside from higher DeltaT.
Is there any chance of an air bubble?
Do I need to replace oil cooler/EGR cooler? Perhaps something dislodged or clogged when it was low on coolant?
118k miles
Completely stock
I forgot to put the hose clamp back over the barb on the underside of the degas bottle... It popped off this weekend while on a trip, and lost ~3 gallons of coolant. Temps were quite elevated while i limped to town.
Refilled with 3ga of yellow (gold replacement).
My truck has always ran ~5-10° DeltaT, EOT to ECT.
Now, i'm getting 20, 30, even 40 deltaT.
ECT right at 190-195
EOT 215-230
I have 2hrs of driving with the new situation. No white smoke, truck is running great aside from higher DeltaT.
Is there any chance of an air bubble?
Do I need to replace oil cooler/EGR cooler? Perhaps something dislodged or clogged when it was low on coolant?
Hotshot
Joined: Dec 2014
Posts: 17,828
Likes: 3,113
From: Jersey Shore
I would say the oil cooler is clogged, either on the oil or coolant side, if you were running Gold before the event. It's most likely solidified in the oil cooler. With 3 gallons lost, I believe you will have head gaskets and camshaft issues in the future. If you nurse it home (more than 2 hrs), I'd plan on starting to take the engine apart. But that's me.
Cargo Master
Joined: Oct 2018
Posts: 2,811
Likes: 1,907
From: unfortunately Germany
I'm with TMT. I would not have driven with too little coolant. The resulting consequences can be very expensive.
I recommend everyone to retrofit a low coolant alarm, the 6.0 do not have this, in my eyes important accessory.
I recommend everyone to retrofit a low coolant alarm, the 6.0 do not have this, in my eyes important accessory.
Thread Starter
|
Cross-Country
Joined: Feb 2011
Posts: 68
Likes: 1
It was only ~20 minutes of nursing it to town before I got it refilled.
I then drove it home (~ 2hrs) with full coolant. That is where I saw the higher DeltaT. Everything else seems nominal except higher oil temp.
If you all concur, I'll probably tear into oil cooler and replace EGR cooler at same time, hopefully preemptively before head gaskets go.
No white smoke or bubbles in degas bottle right now.
I then drove it home (~ 2hrs) with full coolant. That is where I saw the higher DeltaT. Everything else seems nominal except higher oil temp.
If you all concur, I'll probably tear into oil cooler and replace EGR cooler at same time, hopefully preemptively before head gaskets go.
No white smoke or bubbles in degas bottle right now.
Hotshot
Joined: Dec 2014
Posts: 17,828
Likes: 3,113
From: Jersey Shore
I would replace the cooler and hope for the best. But I would install a permanent coolant pressure gauge and monitor the situation.
If you take the time to hunt the postings of 87crewdually on this site, you will find he had a similar situation.
If you take the time to hunt the postings of 87crewdually on this site, you will find he had a similar situation.
Logistics Pro
Joined: May 2004
Posts: 3,609
Likes: 873
It was only ~20 minutes of nursing it to town before I got it refilled.
I then drove it home (~ 2hrs) with full coolant. That is where I saw the higher DeltaT. Everything else seems nominal except higher oil temp.
If you all concur, I'll probably tear into oil cooler and replace EGR cooler at same time, hopefully preemptively before head gaskets go.
No white smoke or bubbles in degas bottle right now.
I then drove it home (~ 2hrs) with full coolant. That is where I saw the higher DeltaT. Everything else seems nominal except higher oil temp.
If you all concur, I'll probably tear into oil cooler and replace EGR cooler at same time, hopefully preemptively before head gaskets go.
No white smoke or bubbles in degas bottle right now.
If you are now seeing problems with temperature differentials after this catastrophic event, I am guessing you know there are issues that might not be a band aid fix.
Thread Starter
|
Cross-Country
Joined: Feb 2011
Posts: 68
Likes: 1
I figured it would need this at some point.
what else to do/check before tearing into it?
what else to do/check before tearing into it?
- Pressure test coolant system to check for head gasket leaks
- coolant flush
- tear down
- replace oil cooler and EGR cooler
- blue fuel spring
- SCT fitting
- reinstall everything
- add coolant filter
- EC-1 coolant refill, oil change
Trending Topics
Tuned
Joined: May 2012
Posts: 332
Likes: 42
I had a similar situation. Deltas were always 5 to 10 degrees, blew a hose and pulled over as soon as it I realized I was loosing coolant. After that temps were over the 15 degree delta. I replaced the cooler and now my temps are back to the 5 to 10 delta.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Logistics Pro
Joined: May 2004
Posts: 3,609
Likes: 873
Good luck
Thread Starter
|
Cross-Country
Joined: Feb 2011
Posts: 68
Likes: 1
How about the oil cooler?