Terrible Vibration When Hot

[Paul Neubauer]

My truck has started a new issue where it has a terrible vibration underneath during the evening commute when it is 100+ degrees and driving. There is no vibration at all during the morning commute though which is odd. The vibration has been getting progressively worse each day and is very noticable in the seat and accelerator petal of the truck. Any ideas or thoughts about where this would be coming from? I thought tire balance but that should not only appear in the heat of the day. Truck is a 2021 with the little Powerstroke diesel and 43,000 miles.

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[FaaWrenchBndr]

How about details of the truck?
Mileage, year, engine?

 

[Paul Neubauer]

How about details of the truck?
Mileage, year, engine?

Good point, it is a 2021 with the little Powerstroke diesel and 43,000 miles.

 

[HammaMan]

Tires? Might just be getting a bit much on the pressure side. 2 psi on mine is the difference from too much to just right. 45 starts to get harsh at speed whereas 43 is right at the edge.

 

[Paul Neubauer]

Tires? Might just be getting a bit much on the pressure side. 2 psi on mine is the difference from too much to just right. 45 starts to get harsh at speed whereas 43 is right at the edge.

I thought tires first but it is not consistent which I would expect a tire out of balance to be. It feels like something is coming apart because it gets worse each day. There is still a vibration even at 15 mph which has me concerned something in the engine or transmission is about to let loose. It goes back to its usual home at the dealership tomorrow morning so hopefully they find it along with continuing to fix the never ending headlight problem this truck has.

 

[HammaMan]

Hrm, tires aren't turning fast enough at 15mph so sounds like something is up. Best to take it into them hot when it's happening

 

[Paul Neubauer]

Hrm, tires aren't turning fast enough at 15mph so sounds like something is up. Best to take it into them hot when it's happening

I noticed yesterday that the transmission was getting warmer than normal and was 216 degrees when I shut the truck off. This morning it sat steady at its normal 195 degrees most of my 45 minute drive to work and then started rapidly increasing the last 5 minutes to 214 degrees and the vibration started up again.

 

[HammaMan]

I noticed yesterday that the transmission was getting warmer than normal and was 216 degrees when I shut the truck off. This morning it sat steady at its normal 195 degrees most of my 45 minute drive to work and then started rapidly increasing the last 5 minutes to 214 degrees and the vibration started up again.

Hrm, hope you have an ESP!

 

[Paul Neubauer]

Hrm, hope you have an ESP!

I do have the extended warranty but the truck should still be under the main warranty. The dealership said good luck if it is a transmission issue because nobody wants to work on those awful 10 speeds and most the techs have quit. Autonation has 80 transmission tickets waiting for 1 tech to get to them all!

 

[HammaMan]

Ooof -- might consider calling other dealers

 

[fordtruckman2003]

Hate to see you going back to dealer. Your truck has spent enough time there already.

Let us know what they find out. Maybe you are one of the lucky underfilled transmission lottery winners. (I hope not.)

 

[Paul Neubauer]

Ooof -- might consider calling other dealers

Unfortunately it is the same story at all dealerships and some don't even have a transmission tech anymore.

 

[Paul Neubauer]

Hate to see you going back to dealer. Your truck has spent enough time there already.

Let us know what they find out. Maybe you are one of the lucky underfilled transmission lottery winners. (I hope not.)

The service loaner guy greeted me by saying "Your trucks broken as usual, huh?"

 

[fordtruckman2003]

The service loaner guy greeted me by saying "Your trucks broken as usual, huh?"

If you are getting a free loaner that helps with the pain a bit.

 

[Sean80]

Similar issue here. Grinding/ vibration in gas pedal when turning and at highway speeds. Very noticeable when it was hot and now temps have dropped a bit and the issue seems to be gone. So strange. I had dealer look at it, they confirmed vibration but wouldn’t troubleshoot any further because I have a 2” level and 34’s on my tremor. Told me to put the truck back to stock which I think is bs, the vibration is clearly in the driveline.

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