roarkperry

I have a lifetime powertrain warranty through "Warranty Forever" from when I bought the truck and so far they have been really good about this issue. between the two dealerships that have worked on it they have replaced the throttle body, the turbo vent solenoid and now the turbos themselves. I also spec'd my truck for our travel trailer and I too am very pleased with the truck in general. And it will still tow either of my trailers (one is ~7500 and the other is ~9000) better than my old suburban :-)

DNA Dan

Did any of this help or reduce the problem?
It seems like this issue just popped up overnight for a lot of people who never used to have issues in the past. I bought my truck used, so I have no point of reference of how it was brand new. After TONS of reading and seeing just how many different parts people replaced to address this issue, I am starting to think this is a strategy/tune issue that Ford introduced to minimize the condensation issue. The only thing I have seen from a few folks online that have helped this is a custom tune.

You say your truck never did this before, was it ever in the shop in the time since it was not doing this? One thing to try is to have them flash your PCM with an "original" strategy to see it anything changes. I would be sure you have the weep hole in the intercooler for this. If this is true, it makes sense why Ford cannot "backtrack" on the strategy code they implemented on so many trucks. They think it minimized the condensation problem, when really it just de-tuned trucks so that they can no longer pull max load. I have no proof of this, this is just my opinion on what is going on because nothing "fixes" this and it's been happening for years now.

Here is a good read https://www.f150forum.com/f70/2013-e...66929/index17/
I know it's comparing a 2013 to a 2011, but I suspect the de-tuning was pushed on older trucks as well.

roarkperry

Thanks for the post DNA Dan, none of the steps they have taken have helped. I just pulled the spark plugs and ran a scope into the cylinders and they look great, no carbon buildup so that is not an issue either. I will see if they are willing to flash the PCM with an original strategy to see if that helps. As for when it started. I bought the truck last May and it had incredible power and would chirp the tires if I wasn't careful. I took ~2500 mile trip towing a trailer and when I returned I took it in for an oil change. The day after the oil change is when I noticed there was a real issue. Now, I see no reason why an oil change would have anything to do with this and I am not saying it did. That is just my point of reference of when I noticed something. Prior to that I spent a month towing. So its possible that it started while I was towing as I would not have noticed the dramatic lag as easy. however, once I got home, had the oil changed and started driving without a trailer it was quite evident that something was wrong. Since then I have had it into the shop several times and they have no clue. It gets severely worse when the ambient temperature is high. I was going to take it back to the shop this last week but the temperature dropped and it was less noticeable. The temps are supposed to start climbing again tomorrow so I will take it back in when I can drive with the technician and have him verify the issues.

DNA Dan

Do you have the paperwork from the oil service? Was this a Ford dealer? Check to see if they updated the PCM. I suppose they could have done it without documenting it, but that would be unlikely.

roarkperry

The oil change was done at the Dodge dealership where I bought the Ford truck :-) they did not update the PCM. they are really good at doing nothing but the bare minimum. The dodge dealership does my regular service/maintenance due to the warranty but they will also farm it out to the Ford dealership for anything more than they are comfortable with.

omarquez_22

DNA Dan

I changed mine when I did the timing chain fix. Old pump looked okay, but I changed it with Ford OEM anyway. Same issue, gets super hot towing.

If anyone knows of a high performance pump that fits, I'm all ears.

omarquez_22

I think I have stumbled upon a fix. Anytime you drain your coolant wether it was timing belt change or even thermostat, you introduce air bubbles into the system. Use a vacuum to suck out all the air and introduce the coolant with no air. There are ways to "burp" the air out if you are on a budget. You can easily youtube either way. This seams to have done the trick for me. My truck started to overheat after the timing belt change by simply accelerating, no tow. It is all good as of now.

DNA Dan

Mine doesn't overheat unless towing a load. Also I have done the alternative fill procedure in the service manual. The current coolant has been in the system through a 1500 mile summer trip, up mountain passes, down to valleys, ECT as high at 235 when the gauge started to move on me. I have topped it off and it's been the same level ever since. I highly doubt there is any air bubbles left in the system any longer.

Good advice though and may be the cause for some like yours was.

roarkperry

Quick update.
I have a service warranty which requires ALL maintenance affecting the drive train to be done at the dealership which is a pain but they just paid for new turbos so I am dealing with it. With that said, I finally was fed up a bit and I pulled plugs and ran a borescope in the cylinders etc... and then put it all back. The cylinders and valves were clean. The spark plugs were a little carbon coated but certainly not as bad as others I have seen. The plug boots had white burn marks where there was evidence of misfires but again not a lot. I took it into the dealership and asked them to change the plugs and boots ($330 for something I would normally do myself really stings). However, Since the new plugs and boots, I hooked up my trailer and went for a drive up the mountains. I have so far been unable to reproduce any overheating issues. The dummy gauge never went more then a hair over half way and the engine never degraded. Again, the plugs were not very bad and the signs of misfires were minimal. However, it appears that the new plugs and boots has solved the overheating issue.
The severe hesitation issues I was having I don't know about yet. I am waiting for the temperature to get hotter this afternoon before trying to reproduce it since it only happens when the outside temp is over 100. I will keep you all posted.