Throttle sticks?????
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I’m actually kind of disappointed in the truck I’ve had to have the touch screen replaced the whole passenger side repainted a fuel line blew off and I lost 24 gal of diesel on the side of the road the shock on the tailgate froze up and wouldn’t come down the connector for the trailer brakes had to be replaced on top of the emissions issue, everything covered under warranty but for $80,000 I would expect better quality then that.
Posting Guru
Joined: Feb 2018
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I would too. Every brand that makes product at the bottom and top of the scale suffers from its perception of the buyer at the bottom of the scale. In other words, Ford doesn't look at you or your $80k truck any different than it does the $10k Ford Fiesta buyer. Your dealership service experience is about the same as well. All manufacturers suffer quality control issues. A lot of that has to do with the ever increasing complexity of the vehicles. And a lot of that is consumer driven content. The premium brands don't escape the quality issues, but the dealerships generally treat you better. Though it's hard to say how much of a difference that makes. After all, if you're spending enough time at the dealership for you to become familiar with what snacks are available on what day at their complementary bar, maybe you need a more reliable car.
Mountain Pass
Joined: Jan 2017
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I'm assuming you aren't in tow haul, or manual mode, or ERS? Is the exhaust brake on or off? Are you on flat ground or going up or down a grade? Does it do it at highway speeds and in city driving?
Did you happen to fill with diesel at a different station then usual? I've had some gas engines in the past that would do weird things on shell fuel, the engine fluctuated rpms a ton just driving on flat ground at highway speeds. I usually filled up at co-op but shell was the only one in the city with gasoline left at the time so filled there, and it started acting weird at idle, in town and cruising at highway speed. Took 2 tanks of coop and back to normal. Wanted to test it out so filled at shell again and sure enough, started running weird again. Not saying this is your issue though.
Did you happen to fill with diesel at a different station then usual? I've had some gas engines in the past that would do weird things on shell fuel, the engine fluctuated rpms a ton just driving on flat ground at highway speeds. I usually filled up at co-op but shell was the only one in the city with gasoline left at the time so filled there, and it started acting weird at idle, in town and cruising at highway speed. Took 2 tanks of coop and back to normal. Wanted to test it out so filled at shell again and sure enough, started running weird again. Not saying this is your issue though.
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I'm assuming you aren't in tow haul, or manual mode, or ERS? Is the exhaust brake on or off? Are you on flat ground or going up or down a grade? Does it do it at highway speeds and in city driving?
Did you happen to fill with diesel at a different station then usual? I've had some gas engines in the past that would do weird things on shell fuel, the engine fluctuated rpms a ton just driving on flat ground at highway speeds. I usually filled up at co-op but shell was the only one in the city with gasoline left at the time so filled there, and it started acting weird at idle, in town and cruising at highway speed. Took 2 tanks of coop and back to normal. Wanted to test it out so filled at shell again and sure enough, started running weird again. Not saying this is your issue though.
Did you happen to fill with diesel at a different station then usual? I've had some gas engines in the past that would do weird things on shell fuel, the engine fluctuated rpms a ton just driving on flat ground at highway speeds. I usually filled up at co-op but shell was the only one in the city with gasoline left at the time so filled there, and it started acting weird at idle, in town and cruising at highway speed. Took 2 tanks of coop and back to normal. Wanted to test it out so filled at shell again and sure enough, started running weird again. Not saying this is your issue though.
It mainly does it at low speeds around 30-40 mph I have been filling at the chevron lately not sure how to turn on the exhaust brake so I assume it’s off, I’ll look into that and see how to operate that
Mountain Pass
Joined: Jan 2017
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Not really the point. After the OP explained it better, the problem I had was most likely a different problem. The problem I had HAS happening to at least 1 other 6.7 powerstroke and a couple other ford vehicles in the fleet but not quite as bad as my case in regards to the cruise control shorting out. They both have SIMILAR steering columns and both have cruise control. My issue that I had with that F-150 was resolved and that truck is gone thankfully. I'm not here seeking help, but to offer up one possibility in the Hope's to help 1 person. We don't need 2 different threads on this. But thanks for the input (no disrespect intended).
Mountain Pass
Joined: Jan 2017
Posts: 144
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Do you know if your torque converter is locked when it's doing it? I'd be curious if it does it with the exhaust brake on. Press the fart looking button once for full exhaust brake (so it comes on when you let your foot off the accelerator pedal). The exhaust brake only works with the torque convertor locked. If it doesn't use the exhaust brake then put it in ERS or tow haul or manual mode and it's more likely to lock the TC.
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Laughing Gas
Joined: Oct 2017
Posts: 787
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From: Lansing MI
Do you know if your torque converter is locked when it's doing it? I'd be curious if it does it with the exhaust brake on. Press the fart looking button once for full exhaust brake (so it comes on when you let your foot off the accelerator pedal). The exhaust brake only works with the torque convertor locked. If it doesn't use the exhaust brake then put it in ERS or tow haul or manual mode and it's more likely to lock the TC.
Now, I had a runaway event in a parking lot upon starting my truck a few weeks ago, but thankfully it was in park. It did bounce on the limiter for about 10 seconds, before I shut it off. Root cause, just as others had said. Earlier in the week the truck went in for in interior detailing. I had installed the weathertech floor mats in fading light, and yes, I had it behind the brake, but over the top of the accelerator.
Laughing Gas
Joined: Oct 2018
Posts: 767
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From: NC
mabye your hand, or some fault, is holding down the accelerate on the cruise?
In my car, you hold down the cruise to accelerate, and it stays where it was when you let off.
On the truck, it goes up 5 mph per second, then stays there when you let off. One of the first things I found out at soon as I hit the hiway with my brand new truck. Right up to 85-90 mph and climbing before I hit the brakes. Took me a couple times to figure out what was going on lol.
I thought the exact same thing as OP, until I noticed what the cruise was set at.
In my car, you hold down the cruise to accelerate, and it stays where it was when you let off.
On the truck, it goes up 5 mph per second, then stays there when you let off. One of the first things I found out at soon as I hit the hiway with my brand new truck. Right up to 85-90 mph and climbing before I hit the brakes. Took me a couple times to figure out what was going on lol.
I thought the exact same thing as OP, until I noticed what the cruise was set at.
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It’s not the exhaust breath I checked that and nothing is on the pedal, im wondering if it has something to do with the emissions system since I’ve had issues with that ever since I bought the truck, I wish there was a way I could just drop a 7.3 in it lol, I did notice when it does it and I press the throttle nothing happens for almost 2 seconds, a friend of mine suggested maybe the turbo vains could be clogged?? Any thoughts on that
Mountain Pass
Joined: Jan 2017
Posts: 144
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So it does it with the exhaust brake on and in manual mode with TC locked then I take it?
Is the turbo laggy off the line? Does boost fluctuate while maintaining a constant speed on flat ground? If so, then it could be the sliding collar in the turbo is gummed up causing sticky vanes. Does the exhaust brake work as well as it did from new? (Not sure if you know that answer though if you haven't used the exhaust brake much)
Is the turbo laggy off the line? Does boost fluctuate while maintaining a constant speed on flat ground? If so, then it could be the sliding collar in the turbo is gummed up causing sticky vanes. Does the exhaust brake work as well as it did from new? (Not sure if you know that answer though if you haven't used the exhaust brake much)
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Well no more throttle sticking issue, I decided with all the issues I was having with my truck it would be best to get rid of it while it still ran, I really took a hit on it tho, paid 80k a little over a year ago and only got 56k for it, so now I’m back in an old 7.3!!! I hope the quality of truck I ended up getting isn’t the new norm for ford. I hope everyone else has better luck with there 6.7’s then I did.
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Apr 28, 2018 09:42 AM