92497pmu

Welcome to the club friends.

I just dropped off my truck at the dealer overnight for a throttle body failure for the 3rd time - winner, winner, chicken dinner.
I am now in the extremely disappointed F150 owner category for this same failure on 3 separate occasions.

I was trying to search my personal threads/ posts for an older link I started in 2014 after the TB failed 2x in 2 months.

TB failure #1
Roughly 60k miles, November 2014
Fortunately was close to home, but I was pulling my flatbed car hauler and it didn't have enough power to limp home with the 2,000 lb trailer.

TB failure #2
70k miles, December 2014
The 2nd time was on a cross-country road trip and I was stuck in various locations from Indiana to ultimately Ogalalla, NE while multiple dealers took various crappy attempts to mis-diagnose the problem. Ultimately, I took a great young Ford tech on a ride on Christmas Eve with his computer plugged into my truck. We managed to find that the TB was slightly out of spec when the truck was empty, but not always bad enough to trigger the code or the CEL. We hitched up the small airstream camper I was pulling and the TB went 10-25% out of spec almost immediately. He was kind enough to pull a truck off the lot, "borrow" a TB and send me on my way.

TB failure #3
114k miles, September 2017
I just had dropped off my enclosed car trailer at a friend's shop and was returning home. A few miles down a county road, the TB failed (in it's now predictable fashion). Truck stalls down to idle, runs rough, CEL wrench comes on the dash, pull truck to side of road, restart, limp home 20 miles trying to avoid highway where I could get rear-ended. The truck probably had 5 -7 more stalls on the ride home - I lost count.
I'm heading over to my dealer to pick up now...

Anyone else have multiple failures events like this?
Does it happen when towing or unloaded?
Mine have all been while towing or just after dropping a trailer.
Never with my light trailer 1,000 lbs and never with my heaviest trailer - closer to 8,000+ lbs.
I saw a few posts about aftermarket or non-FOMOCO TB parts - anyone have any better luck with Rock Auto or others - rather than OEM parts?
Again, this is getting pretty disappointing, unsafe & leaving me not really confident in the truck's reliability to go 100 miles or 1000 miles.
If any Ford customer service people or techs read this I'd be interested to hear from you.

charles_slc

No (at least not yet!)

First occurrence was w/o trailer. But was the day after towing 5K trailer 420mi. Drove a bit the next morning to rent a kayak and then to the beach. When I went to return the kayak is when it first hit. Probably occurred 6 times before getting back to campground.

Left the next day headed home w/trailer. Happened 3 times.

Next day, dropped my daughter off at school and headed to the dealer...probably happened another 6 times.

mass-hole

Anyone notice degraded performance prior to the TB failure? I feel like my truck has been feeling sluggish and not quite right for a couple of months now. I replaced the spark plugs around 40k when this first started and that had no effect. I am now at 49k with no major issues but it just feels off.

I was thinking either the TB or maybe the BOV was not functioning at 100%.

ConiferEric

So my 2014 F150 Ecoboost went into limp mode yesterday while leaving a campground. The vehicle was towed to the Ford dealer in Salida, CO and the SA feels like its probably the throttle body. Based on what I've read in here I would agree. Hopefully there are some codes stored as both the blue wrench showed as well as the check engine light were stuck on afterwards, even after restarting.

The truck has 55K miles on it. If Ford wont cover the repair I'll definitely escalate if they are covering for <2013 and 2015-2016.

RLXXI

The powertrain cannot function without the TB and therefor should be covered 5yr/60k miles.
.

charles_slc

That would be sensible...but is not the case. I posted a list of what's covered a few posts back...
https://www.f150forum.com/f70/2014-f...3/#post5447507

Premium Care ESP covers it as part of the emissions system.

mass-hole

That is pure savagery.

Paints-n-cows

I just saw this thread so I'm going to put my input in on this.

My 2014 with the 3.5 EB was bought by my at 30k in June 2016. From the service records, the TBI was replaced prior to my buying it.

In December 2016, I was headed to Orlando for a dog show on I-75 when it idled down and the wrench light came on. I coasted to the side of the interstate contemplating what I was going to do with 6 dogs and my spouse at 8 pm just south of the Georgia border. There was absolutely no throttle response at all. I shut it off and the restarted it. Luckily, lights went off but check engine light stayed on. The truck made it about 30 miles before it did it again. Before it was over with, it took four times of this mess before I made it to my mother's house just outside of Gainesville.

The next morning I got on the phone to a Ford dealer in Ocala. The service woman told me that if I could get it there, they could get it in right away so off I went.

It cost me a $100 deductible but after a few hours, I was back on the road. The one thing that I noticed was that the truck was still sluggish and the fuel mileage had dropped way off.

Before I headed back north, I thought they maybe they had missed something or broken a vacuum hose or something.

These pictures represent what I found. It looks as if the tech didn't bother putting the intake hose back on the inlet properly and the boost was exiting on the front side of the TBI. After a little bit of work, I got it back properly but that really ticked me off.




So fast forward to now. The truck is just shy of 98k miles and I noticed that the fuel mileage has dropped off significantly in the last month or so. Also, a few times I have noticed a lag from throttle input to throttle response.

There haven't been any lights coming on but I'm thinking that I'm headed to a failure again.

I bought the extended warranty to 125k so I should be ok.

ConiferEric

Thanks for the update and the photos. My truck lost a fair amount of power/driveability after the new TB was installed. I've been told that the loss of power and the associated drop in MPG was the result of a new software update that the dealer performs with the new TB.

I checked out my hose clamp on the inlet of the TB and it was installed similarly crooked to yours. When I disconnected the clamp and re-aligned the hose I discovered that the inside of the hose is covered in engine oil. Any thoughts about what could be causing that?

RedAggie03

I'm going through this issue now on my 2014. I just dropped it off today at my local Ford dealership hoping that they can replicate the issue and get it fixed. My truck just rolled over 32,000 miles. I've also contacted Ford Customer Service here on the site hoping that they can help. My issue seems to come up mostly when towing, but it has happened once when not towing. We tried one dealership while we were out on a trip and had 5 failures in about 4 hours of driving and they couldn't reproduce the error and sent us on our way. It's pretty frustrating that it's pretty well known what the issue is, but Ford isn't even trying to help - especially on a truck that's still under 36,000 miles!

Fingers crossed Ford doesn't let me down - I was really looking hard at ordering the new 3.0L PowerStroke F150 soon. :-/