Yeah, that's not good. I've never seen my EOT that high, and I tow about the same weight (a jeep on a car hauler).

It's gotten close to that, maybe 220s, but the ECT is up there, too. While climbing a 2000ft hill.

 

What are healthy eots and ects

 

I am looking for a vehicle to tow with. I have a DD that I zip around in.

 

The coolant level is low and there is some crud in the overflow. When I shut of the truck, after about 10 mins the radiator hoses were limp and the cooling system had no pressure.

 

The numbers in your post are unhealthy numbers, with the oil cooler being the most likely coporate. But saying that, depending on ambient temperature, load, grade and rate of speed, it's hard to say. Driving at 65 mph unloaded on a flat grade for about 15 to 20 minutes, usually tells the story of how healthy your cooling system is. The delta between eot and ect should not exceed 15 degrees, and the eot should not be anywhere close to 230*

Leaving Philadelphia, pa. headed to Patriot, Ohio (roughly 500 miles one way & and lots and lots of 6 to 7 % grades) with my 05 Ford F-350 dually, using the air conditioner going and coming, I pulled my four horse trailer loaded with one horse and 6 bales of hay, total weight for the trailer was around 10,000 pounds. With 90 degree temps outside, averaging 65 to 70 mph on the less hilly parts of the trip my the truck's high temperature mark was 219* eot and 209*ect. On the 6% and 7% grades, some of the grades being over a mile!. @ 55 mph, the eot got as high as 231* & the ect was in tow at about 221* for the high and the Delta never exceeded 12 degrees. And mind you I had a lot more truck, but I just did not see the need to beat the crap out of it!

 

The truck is puking, but it's hard to say, without testing, whether it's from head gaskets or the extreme high temps causing the coolant boil over. Did you hear the fan come on?

 

I couldn't really tell if the fan was on or not. I did notice that the fan was loud, sounded like it does when I just start my ram and get going. You know how the fan is louder when the engine is cold? That's what it sounded like.

At this point, how much effect does this heat problem have on the rest of the motor? Do I buy it and change the cooler and hope everything else holds together or are all the rubber components and seals at this point damaged, and it is more likely that I would need an engine rebuild?

 

It sounds like the fan is working properly. You could change the oil cooler and the truck would run find, but without testing and investigating you are taking a big gamble on the health of the engine! When oil temperatures get that high, a lot of bad things happen to the engine components whether they are made of metal, rubber or plastic . Ones oil reaches temperatures it losses it's ability to protect the metal on metal friction guard, so basically it's like to run the truck with no oil. The oil filter stand pipe is made of plastic and seeing oil temps that high for any substained period of time will melt the plastic into the oil gallery pathways, which is how the oil travels throughout the engine. constricting the flow of oil to the engine components!! I'm not sure once the oil filter standpipe melts into the oil galleries that it can be removed, so the at that point just becomes a ticking time bomb. In short you could have to replace the engine or it could run for 300,000 miles, who knows, but if it were me and I couldn't get at least $3500 to $5000 dollars off of the sticker price, or I couldn't get the truck with a warranty[I would still keep looking for another truck, and that's just my 2 cents..

A lot of the guys on FTE can give you way better technical information than I can , so hopefully they will join in, and sound off.

 

So it's been an exhausting, long day. We drove 5 trucks today and they all varied from not so good to "this thing is a piece of junk and you want 20k for it?". Everyone is asking a premium as if their vehicles are in perfect condition, none were willing to address the issues I pointed out our adjust the price according to the repairs needed.

I think I'm going to take a step back and continue saving for a newer truck.

 

Hey, just remember it's better to wait than buy a turd At least you're in the know now, and aren't buying something that might be a time bomb without knowing it.

 

Oh yeah, definitely. I'm very glad that I was able to find the information needed to call their bluff. What was, and I guess shouldn't be surprising, is the reaction to my requests to address the issues. I'm guessing there aren't many people out there that do their research before buying something.

Now I just need another 10 grand. I think I'm going to aim for a 6.7L

 

Just avoid Job 1 2011s, those are the ones that can apparently **** exhaust valves and cost $20k+ to reman. And people think 6.0s are expensive......

 

This is from a 2007 F350 with 140k miles we drove earlier. We were getting off the HWY coming to a stop.

Do you think I might have the ScanGauge programmed incorrectly? I got the codes for EOT off their website, and found somewhere here to use the fWT values for EOC

 

https://www.ford-trucks.com/forums/1...rque-pids.html
Post #8 lists what he was using for EOT. It seems odd that you have drove a couple of trucks and the EOT is that high. I would consider the programming of the SG.

 

Not sure if you programmed the wrong value it would show... but if those oil temps are right, look at the money we just saved you.