Changing gear clunk sound ( sometime) , new raptor normal?

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GCATX

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How do you force the relearn with forscan?

I don't know the exact procedure without having it plugged in, but it just popped up once I went in. I think there were 2 questions on the screen. I think second one was reset adaptive relearn, or some such. It worked like a champ. My shifts into 8th were getting worse and repeatable every time. Since last Forscan, smooth as any other shift.
It would be nice if there was just a button on the dash.
 
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Mike P

Mike P

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it was normal mode. I normally drive very smooth that is why I notice noises so easy.
Sometimes we drive slow until stop, clunk noise happens too. It sounds like the gear catch up to the next gear or down gear.
 

WraptorBoy

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it was normal mode. I normally drive very smooth that is why I notice noises so easy.
Sometimes we drive slow until stop, clunk noise happens too. It sounds like the gear catch up to the next gear or down gear.

I agree with your concerns and have felt them too. Got 3K miles on mine (2019).

A couple of days ago, I was in sport mode. The street in front of me was wide open so I decided to have a little fun. Truck was fully warmed up. I didn't floor it but just gave it generous gas and got a huge clunk. I don't know if it was the trans or rear end because I wasn't expecting it. Could have been at gear 4-6ish. It was a severe jarring clunk. Unacceptable.

Every day, when I come to a curve and slow to about 15MPH, I get a clunk in the rear.

If I give too much gas after the first few minutes of starting, the engine will hesitate once. After that first, it's good. I tested this in manual and still got the hesitation so it's not the trans. The workaround is to barely hit the gas for the first few minutes of driving until you feel that first hesitation. The less gas you give, the less the jerking of your body from that first hesitation but you should be able to "learn" when it occurs.

All of the above was in normal mode except the one case I mentioned where truck was in sport.

As far as learning, the transmission doesn't have a positronic brain like "Data" from Star Trek. I suspect this is as misunderstood as anything else that people copy and paste.

A transmission is adaptive. Meaning, if you start it up and are driving easy, it will shift easy. Yet if you drive it hard, it will adapt to a more sporty shift pattern. As far as learning, you'll get 50 different answers, including mine: it will attempt to "learn your habits" within a short period of miles and likely not more than 1000. So yours should be done. Does this mean when you drive it shifts perfect and, your wife drives, the transmission goes nuts because she's hitting the gas at different points or beating on it? Doubt it. What then does it mean "learning"? I'll be honest and say I have no idea. Logically, I would think it will attempt to apply what it has stored in a ROM and if you're not matching that with the current driving pattern, it will adapt to match your current gas pedal patterns.

For me, it boils down to whether or not these clacks and clunks will do damage over time. I guess no one can really answer that.

Also, I felt clunkiness in my Dodge Charger. These trans have too many useless gears. If you look closely, in the Raptor, the trans often skips every other gear when it shifts. So not all these gears are practical for every day applications.

One thing you need to verify is where the clunk is coming from. All of my clunks come from the rear. That's the pumpkin, not the trans. So check for that.
 
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hedonist222

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If you're driving casually in sports mode, shifts will feel stiff and you'll feel the jerk when it changes.
But if you're WOT or spirited driving, the shifts in sport are smooth.

Regarding gears:
Two comments:

1- shifting you and down from 5 is iffy
Sometimes I'll feel the shift was slow

2- twice I've had this situation:

I'll be in 10th and floor acceleration, when it down shifts to 6 or 7, I'll hear a loud bang and feel a huge jerk

The bang is so loud and jerk so hard, I actually thought sometime crashed into me from behind
 

Badgertits

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Take off negative terminal for 15 mins or get a custom tune (a real one that addresses the TCM not just ECU...& Id recommend going w/ a company that didn’t start tuning trannies 2 months ago)
 

baptizo

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My '18 shifted brutally hard in Sport mode when I first tried it with about 140 miles on the odometer - it shifted smoothly in Normal. I came from a manual Focus RS to the Raptor so I was always, without exception, in Sport mode when driving the RS so I was a tad bit disappointed.

I didn't use it again until it had about 2k miles on it and have rarely been out of Sport mode since then. I absolutely love the way the truck performs (Normal is so blah now) and especially appreciative of how the transmission holds/downshifts gears when descending some of the "hills" out here in NWPA/UPNY.
 

TXRaptor

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Mine shifts perfectly smooth in Normal mode, while it has quick and somewhat hard shifts in Sport Mode. (not "Brutal" as reported above) I am running the MPT 93 PRX tune with the option for "smooth transmission" shifts, so it is perfect in both modes. Smooth when I want to drive normally, and hard when I want to drive Sporty. I have no clunking ever, even with Geisers, Deaver +3s and 37" Toyo RTs. I can even break them loose from a roll in Sport mode. :cool:

I highly recommend the MPT engine and transmission tunes...
 

baptizo

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Mine shifts perfectly smooth in Normal mode, while it has quick and somewhat hard shifts in Sport Mode. (not "Brutal" as reported above) I am running the MPT 93 PRX tune with the option for "smooth transmission" shifts, so it is perfect in both modes. Smooth when I want to drive normally, and hard when I want to drive Sporty. I have no clunking ever, even with Geisers, Deaver +3s and 37" Toyo RTs. I can even break them loose from a roll in Sport mode. :cool:

I highly recommend the MPT engine and transmission tunes...

Keep in mind the truck was new and the transmission wasn't properly "broke" in yet. The transmission shifts just fine in Sport mode now - quick and firm. No complaints.
 

TXRaptor

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Keep in mind the truck was new and the transmission wasn't properly "broke" in yet. The transmission shifts just fine in Sport mode now - quick and firm. No complaints.

Might be different on the newer ones, but my 2018 had 21 miles on it when I bought it and I did not experience any harsh shifting in normal or sport mode. I did nothing special to “break” mine in... ;)
 
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