wallyuwl

What was the specific problem again, off throttle rattle?
Let us know how it goes. Also ask for the specific update info (update number, TSB number, etc.) and post.

jsnell321

Dealership has replaced my VCT solenoid and the VCT phaser on my 5.0, and I still have the chatter on decel. Shop foreman and I talked outside and he basically told me ford has no idea how to fix the issue, so they are calling it normal characteristics. Shop foreman did acknowledge that it is not normal(off record), but he isn't real sure where to go after replacing the parts stated above. Anyone else have any insight?

RACarvalho

Just an update on my hard shifting situation.
Two weeks ago I erased the transmission adaptation (through battery disconnect) and since then, It has being working fine.
My use is 50% in city and 50% towing heavy on highway so I was waiting this past weekend towing in order to report the status.
we towed for 2 hours and after that the transmission didn't get back to the hard shifting situation so I'm assuming there is nothing wrong from the mechanical stand point... It is just the adaptation that gets crazy for some reason....
Nevertheless, I bought a quick battery disconnect that I'll install if/when I need erase the adaptation again.

plncrzy

I am picking up my truck today after they replaced the transmission valve body. conversely, I was out for a drive in the country this past weekend. we were on some back country paved roads which were very hilly and curvy. Since the dealership flashed my pcm, I can say that the issues are better than what they were, virtually no slippage however the rattle and some erratic shifting was still somewhat noticeable.

I interpret two different topics in this thread that some seem to cross link the same issues;

1. The rattle and transmission shifting issues are both part of the same problem.
2. The rattle is a VCT issue with the engine while the shifting issue is transmission program only

I am not convinced that the rattle is a VCT issue, to me the rattle seems to be coming from under the cab of the truck and likely transmission. I certainly could be wrong, or that the rattle people are describing is different from the one that I have. If you google the 2018 5.0 rattle on youtube.. mine is EXACTLY like that.. and some of the videos actually point tot he transmission and they replicate the rattle while truck is on the hoist.

I am anxious to pick up my truck this afternoon and see how it goes.

My truck was in the shop twice now and both times I was provided with a 2018 F150 Supercrew as a loaner. The first one was a 5.0 and the truck had slight rattle the second truck was 2.7 ecoboost and it doesn't not have a rattle or transmission issues

StuartTX

Scott, I think the studder that you've been experiencing might be the same as what I have been experiencing and what 'F150mo' has been experiencing. Will you take a look at my thread and reply if you to that thread if you think we have the same issue? Maybe we can start figuring out how many trucks are effected by this issue. I am very close to sending a demand letter and if that doesn't work i'll be hiring an attorney. I'll never be able to sell this truck with this studder problem.

Here's the thread: https://www.f150forum.com/f118/2018-...rottle-420251/

Masi1926

What this topic needs, to get traction, is a title that includes every engine, not just the 5.0.
If you go through all three engines (2.7, 3.5, 5.0) have experienced this exact same thing.

plncrzy

got mine back from dealership, they replaced the valve body in my tranny. it has HELPED but its not perfect, I still feel a shudder under load. Today I was towing my boat (Its a 16' Lund so not much weight).. My 3 hour road trip back from the camp is hilly, curvy with a 80-90 km/h (50mph) speed limit. The Shifting was less than ideal in normal mode and only slightly better in towing mode.

The low speed rattle is "almost" gone.

I plan to drive it daily for the next week or so to see if any conditions change (hopefully for the better)

I did ask the mechanic at the dealership "How many 10 speed F150 are coming in with these issues?" ... his response; "ALL OF THEM".....

isthatahemi

The "shudder" on my 2018 feels like a driveline angle / U-Joint vibration.
Separate from the lurching and unevenness that are part and parcel with the stock tune.

MotoMike

I had my '18 at the dealer last week for P2450 code(EVAP purge valve stuck open ,etc) and they immediately said when I pulled in and told them the code, "No parts available!" I insisted they keep the truck anyway and check it out. They found the 8/20/18 released TSB 18-2252 which they applied, basically a PCM reprogram. I'm wondering if its really just a clear the code and send the truck back out the door. Time will tell if it pops up again. I've also started running 92 octane in mine to see if drivability improves any. I know it does not seem to like BP 87 octane for some reason.

Has anyone else had excessive wear with the sport cloth? My driver seat bolster next to door is fraying at 6 mos, 5k miles. Its strange as its not where I sit and the seatbelt doesn't seem to rub that area. I guess I contact it sliding in and out? Dealer says Ford will not cover upholstery concerns like this.In another 6 mos, it will probably be worn though to foam.

Masi1926

I paid a little more attention to what the transmission does at speed yesterday.
I'm wondering why I'm in 6th gear at 35 mph and then coming to a stop it drops to 3rd or even 2nd, then first.
That's when it's rough and sometimes I get that surge feeling.

Seems as if it would drop to 4th or even 3rd at 35mph while at speed, it could potentially eliminate these complaints

I'm running 3:55's just for the info. Locking out the upper gears doesn't solve it or change the behavior, because of how the gear ratios are. It still wants to shift up as fast as it can.
I don't know now that's it's in production a flash can change how it upshifts so rapidly to 6th and even 7th gear between 35 and 45mph. Or at the very least calm it down a bit.
Ironically when I'm on the highway it hardly goes into 10th at 65-70 mph.