Rumble strip effect help!

HarleyDave88 · 2021-11-16 12:43:30

They are legit. Carry on. :cowboy:

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Nov 18, 2021 | 07:19 PM

#11

SPOAT

Senior Member

Joined: Mar 2016

Posts: 7,383

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From: Georgia On My Mind

They are legit.

Carry on.

Nov 19, 2021 | 12:17 AM

#12

tvsjr

Senior Member

Joined: Aug 2009

Posts: 5,403

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Quote:

Originally Posted by SPOAT

They are legit.

Carry on.

Thanks for the confirmation. Always good to have a Ford rep to beat up^W^Wengage on these threads.

Nov 19, 2021 | 07:08 AM

#13

Scott2373

2018 XLT FX4

Joined: Nov 2015

Posts: 2,151

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From: Maricopa, AZ

Quote:

Originally Posted by c54dan

Torque converter shudder. I had it, put in the additive, now its gone.

What additive?

Nov 23, 2021 | 08:40 PM

#14

z.l.davis

5 Year Member

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Joined: Mar 2013

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From: NC

Exact same thing here. It’s the worst 3-8th gears under 1500 rpm. Feels exactly like a rumble strip.

Nov 24, 2021 | 08:39 AM

#15

lweford

5 Year Member

Joined: Feb 2018

Posts: 136

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From: Kentucky

Quote:

Originally Posted by Scott2373

What additive?

I’m not sure of the exact name but my mechanic, who is a former Ford technician, said he had to go to the dealership to get it. It was in about a 4 oz bottle. Red and white. I think it was Motorcraft branded.

Dec 10, 2021 | 08:36 AM

#16

HarleyDave88

Thread Starter

Member

Joined: Jun 2021

Posts: 63

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Quote:

Originally Posted by z.l.davis

Exact same thing here. It’s the worst 3-8th gears under 1500 rpm. Feels exactly like a rumble strip.

so take it in they reprimanded my pcm and it’s helped still having issues but they are still transmission related. My 4th gear is insanely hard going into and out of

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