Stall under Acceleration: 2nd Time
Cross-Country
Joined: May 2020
Posts: 81
Likes: 15
Just a footnote but I bought the tunes from 5 star and it did not in any way help with the issue. They were very good about trying to tweak the files but I have given up on it and am back to stock. So don't think that is a silver bullet so to speak. I think in person tune or some data logging to catch the issues might work but the canned tunes for me did nothing. But again they did try to work on the tune files and never gave me any grief at any point.
Freshman User
Joined: Sep 2020
Posts: 27
Likes: 0
From: Conroe TX
raven zilla
When these Incidents occurred, were either of these a U Turn OR is it Only on Left Turns? Last Week, on 2 different days, I pulled out of our Parking Lot and was going to make a Wide Left U-Turn. While making the Left U-Turn, just as I was completing the Turn, I pushed on the Accelerator and the Engine Reved, but nothing else happened. This was not a Fast or Quick U-Turn. The Best Way I can Describe it is it was like the Left Tire was Off of the Ground. It kind of makes your backside Pucker when oncoming traffic is approaching, and you feel like the Turtle crossing the Roadway. The Road is a 4 Lane Road, with a Median, and I was turning from the SB Outside Lane to the NB Outside Lane at around 5 mph, maybe.
It was if all of the Transmission Fluid has gone to the Right Side of the Pan, and the Transmission quit working, for those couple of seconds, until it finally engaged.
Surely this Isn't Normal, IS IT?
When these Incidents occurred, were either of these a U Turn OR is it Only on Left Turns? Last Week, on 2 different days, I pulled out of our Parking Lot and was going to make a Wide Left U-Turn. While making the Left U-Turn, just as I was completing the Turn, I pushed on the Accelerator and the Engine Reved, but nothing else happened. This was not a Fast or Quick U-Turn. The Best Way I can Describe it is it was like the Left Tire was Off of the Ground. It kind of makes your backside Pucker when oncoming traffic is approaching, and you feel like the Turtle crossing the Roadway. The Road is a 4 Lane Road, with a Median, and I was turning from the SB Outside Lane to the NB Outside Lane at around 5 mph, maybe.
It was if all of the Transmission Fluid has gone to the Right Side of the Pan, and the Transmission quit working, for those couple of seconds, until it finally engaged.
Surely this Isn't Normal, IS IT?
Lead Driver
Joined: Jan 2002
Posts: 8,653
Likes: 4,737
From: Itinerant
Is this just being experienced with trucks having 3.55 gears or are other with 3.73 & 4.30 experiencing this also?
I've been going back and forth between a 250 with 3.55 or 350 with 3.73 (I like 3.73 more and can only get with the 350). If this hesitation is with the 3.55 then it's an easy decision which to get.
I've been going back and forth between a 250 with 3.55 or 350 with 3.73 (I like 3.73 more and can only get with the 350). If this hesitation is with the 3.55 then it's an easy decision which to get.
Thread Starter
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Tuned
Joined: Apr 2020
Posts: 341
Likes: 25
raven zilla
When these Incidents occurred, were either of these a U Turn OR is it Only on Left Turns? Last Week, on 2 different days, I pulled out of our Parking Lot and was going to make a Wide Left U-Turn. While making the Left U-Turn, just as I was completing the Turn, I pushed on the Accelerator and the Engine Reved, but nothing else happened. This was not a Fast or Quick U-Turn. The Best Way I can Describe it is it was like the Left Tire was Off of the Ground. It kind of makes your backside Pucker when oncoming traffic is approaching, and you feel like the Turtle crossing the Roadway. The Road is a 4 Lane Road, with a Median, and I was turning from the SB Outside Lane to the NB Outside Lane at around 5 mph, maybe.
It was if all of the Transmission Fluid has gone to the Right Side of the Pan, and the Transmission quit working, for those couple of seconds, until it finally engaged.
Surely this Isn't Normal, IS IT?
When these Incidents occurred, were either of these a U Turn OR is it Only on Left Turns? Last Week, on 2 different days, I pulled out of our Parking Lot and was going to make a Wide Left U-Turn. While making the Left U-Turn, just as I was completing the Turn, I pushed on the Accelerator and the Engine Reved, but nothing else happened. This was not a Fast or Quick U-Turn. The Best Way I can Describe it is it was like the Left Tire was Off of the Ground. It kind of makes your backside Pucker when oncoming traffic is approaching, and you feel like the Turtle crossing the Roadway. The Road is a 4 Lane Road, with a Median, and I was turning from the SB Outside Lane to the NB Outside Lane at around 5 mph, maybe.
It was if all of the Transmission Fluid has gone to the Right Side of the Pan, and the Transmission quit working, for those couple of seconds, until it finally engaged.
Surely this Isn't Normal, IS IT?
Last night was more of a no power situation. The more I think of it, I'm not so sure that it was the TC kicking in. I've had TC kick in during rain while turning/merging into traffic. This wasn't a power/reduced power/power situation. This was more like no power/ no power/power.
I'll probably file a NTSB/DOT compliant later today after I contact the dealer.
More Turbo
Joined: Jul 2020
Posts: 709
Likes: 188
Is this just being experienced with trucks having 3.55 gears or are other with 3.73 & 4.30 experiencing this also?
I've been going back and forth between a 250 with 3.55 or 350 with 3.73 (I like 3.73 more and can only get with the 350). If this hesitation is with the 3.55 then it's an easy decision which to get.
I've been going back and forth between a 250 with 3.55 or 350 with 3.73 (I like 3.73 more and can only get with the 350). If this hesitation is with the 3.55 then it's an easy decision which to get.
Admittedly, I'm relatively new to these trucks and this isn't my field of expertise, so I'm just trying to understand the logic behind blaming the rear end gear ratio.
FTE Leadership Emeritus
Joined: Sep 2000
Posts: 23,174
Likes: 1,678
From: Stephensville WI
My truck does the same thing. 2019 F-250 PSD with 3.55 E- locker diffs. It is caused by the traction control system and the stability control system, in my opinion anyway. Trying to make a 90 degree turn from a stop while jumping on the throttle seems to be a forbidden practice. I haven't tried deactivating both systems yet. Supposedly holding the button for 5 seconds deactivates everything.
Cargo Master
Joined: Jan 2015
Posts: 2,824
Likes: 39
From: Boise
1st time was passing on a 2 lane highway. The truck hesitated before downshifting. There was enough of a hesitation to abort the pass. I attributed that to the transmission logic not being able to quickly and correctly determine the appropriate downshift. I've had that happen several times especially if the truck is in 10th gear.
Last night was more of a no power situation. The more I think of it, I'm not so sure that it was the TC kicking in. I've had TC kick in during rain while turning/merging into traffic. This wasn't a power/reduced power/power situation. This was more like no power/ no power/power.
I'll probably file a NTSB/DOT compliant later today after I contact the dealer.
Last night was more of a no power situation. The more I think of it, I'm not so sure that it was the TC kicking in. I've had TC kick in during rain while turning/merging into traffic. This wasn't a power/reduced power/power situation. This was more like no power/ no power/power.
I'll probably file a NTSB/DOT compliant later today after I contact the dealer.
Cargo Master
Joined: Jan 2015
Posts: 2,824
Likes: 39
From: Boise
Is this just being experienced with trucks having 3.55 gears or are other with 3.73 & 4.30 experiencing this also?
I've been going back and forth between a 250 with 3.55 or 350 with 3.73 (I like 3.73 more and can only get with the 350). If this hesitation is with the 3.55 then it's an easy decision which to get.
I've been going back and forth between a 250 with 3.55 or 350 with 3.73 (I like 3.73 more and can only get with the 350). If this hesitation is with the 3.55 then it's an easy decision which to get.
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Lead Driver
Joined: Jan 2002
Posts: 8,653
Likes: 4,737
From: Itinerant
Me neither but so far 3.55 gears seem to be the thing in common.
Fleet Mechanic
Joined: Nov 2019
Posts: 1,250
Likes: 192
From: Livingston Tx
I have 3.73 in mine and never experienced what your talking about. The sluggish response was fixed when I tuned it. I put it back to stock a couple weeks ago just to see after driving tuned for almost a year the truck is a flat out turd with stock tune.
Laughing Gas
Joined: Aug 2018
Posts: 942
Likes: 149
I would take a look at this:
PedalMonster [64310] for many Cadillac, Chevy/GMC, Chrysler, Dodge/Ram, Ford, Jeep, Lincoln, Mazda (check fitment) (bankspower.com)
Search YouTube for above, every video I've seen so far everyone is all smiles. I would watch the Banks video about the product where he talks about the design and safety features.
PedalMonster [64310] for many Cadillac, Chevy/GMC, Chrysler, Dodge/Ram, Ford, Jeep, Lincoln, Mazda (check fitment) (bankspower.com)
Search YouTube for above, every video I've seen so far everyone is all smiles. I would watch the Banks video about the product where he talks about the design and safety features.
Tuned
Joined: Oct 2006
Posts: 449
Likes: 40
Since this is an intermittent issue, your best bet is to contact the dealer to see if there is a known issue and fix. Also try to figure out how to reproduce it, go to open parking lot and see if you can figure out what makes it happen. Intermittent issues are difficult to correct, be aware that if you drop it off at the dealer it may be there a while for them reproduce it and fix it. So if you can reproduce it you can demonstrate it to them and get it addresses.
It could be an overly sensitive traction control or stability control causing it to kill power. Traction control seem to take a few seconds before it will kill power, I think it applies brake first, before reducing or killing power. The stability control does react pretty quickly when it senses that the front and rear are not tracking. Depending on how much oversteer, understeer, drifting, etc the stability control senses, it will react differently by cutting power, applying brakes on specific wheels, etc. It looks at wheel speeds, steering angle, pitch, yaw and few other things and the rate they are all changing to determine when and how to intervene.
It could be an overly sensitive traction control or stability control causing it to kill power. Traction control seem to take a few seconds before it will kill power, I think it applies brake first, before reducing or killing power. The stability control does react pretty quickly when it senses that the front and rear are not tracking. Depending on how much oversteer, understeer, drifting, etc the stability control senses, it will react differently by cutting power, applying brakes on specific wheels, etc. It looks at wheel speeds, steering angle, pitch, yaw and few other things and the rate they are all changing to determine when and how to intervene.
Thread Starter
|
Tuned
Joined: Apr 2020
Posts: 341
Likes: 25
Since this is an intermittent issue, your best bet is to contact the dealer to see if there is a known issue and fix. Also try to figure out how to reproduce it, go to open parking lot and see if you can figure out what makes it happen. Intermittent issues are difficult to correct, be aware that if you drop it off at the dealer it may be there a while for them reproduce it and fix it. So if you can reproduce it you can demonstrate it to them and get it addresses.
It could be an overly sensitive traction control or stability control causing it to kill power. Traction control seem to take a few seconds before it will kill power, I think it applies brake first, before reducing or killing power. The stability control does react pretty quickly when it senses that the front and rear are not tracking. Depending on how much oversteer, understeer, drifting, etc the stability control senses, it will react differently by cutting power, applying brakes on specific wheels, etc. It looks at wheel speeds, steering angle, pitch, yaw and few other things and the rate they are all changing to determine when and how to intervene.
It could be an overly sensitive traction control or stability control causing it to kill power. Traction control seem to take a few seconds before it will kill power, I think it applies brake first, before reducing or killing power. The stability control does react pretty quickly when it senses that the front and rear are not tracking. Depending on how much oversteer, understeer, drifting, etc the stability control senses, it will react differently by cutting power, applying brakes on specific wheels, etc. It looks at wheel speeds, steering angle, pitch, yaw and few other things and the rate they are all changing to determine when and how to intervene.
More Turbo
Joined: Jul 2020
Posts: 709
Likes: 188
That's humorous, but we all know the traffic isn't the needed component in replicating this lol. Bet he would have an oh **** face though.