Right or left turn from stop

[Ural_Guy]

I have a 2019 Tradesman Classic 1500 4WD with I bought new in 2020, stock suspension and tires and 20,500 miles. Going to the stealer Wednesday while it is still under warranty and wanted to run this by you all. When turning either left or right from a stop position (traffic light/stop sign) and accelerating to approximately 10 mph, there is a vibration and scrubbing feel until the steering wheel is straightened back out. This happens every left or right turn made from a stop and is predictable. Any ideas? It could be in a Home Depot parking lot turning into a parking spot after waiting for it to be one available or turning after a traffic light. Truck is in 2 WD and there isn't any abnormal tire wear. It has done this for sometime and I am finally getting it checked out

 

[ExpressRules]

If you had more miles on the clock, I would have highly recommended you check the bearings, but who knows might be worth looking.

 

[Jeepwalker]

Where does the 'feeling' seem to come from? If it's the rear, I would ask if your truck has a limited-slip rear end? They can do that when the outer axle an inner axle turn at different rates (like turning into a parking lot at slow speeds). Depending on your truck and the rear diff your tk has, ...many limited slip rear diffs require a special 5 oz of friction modifier (additive) which prevents a 'scrubbing' feel when turning. That's just a guess. There could be other things causing a scrubbing feeling.

If it's from the front, then perhaps there's a wheel bearing, brake grabbing issue or something rubbing the tire. Hard to say w/o a good look-over and test drive. The dealer should be able to figure it out.

Let us know what it turns out to be.

 

[Ural_Guy]

It's in the front near as I can tell

 

[pacofortacos]

What kind of tires? And, does it do it around a bend or just a hard turn like you described?

My son's jeep has a feel just like that and it is the Michelin Defender blocks causing it - but that jeep does turn very sharply.

 

[Ural_Guy]

Where does the 'feeling' seem to come from? If it's the rear, I would ask if your truck has a limited-slip rear end? They can do that when the outer axle an inner axle turn at different rates (like turning into a parking lot at slow speeds). Depending on your truck and the rear diff your tk has, ...many limited slip rear diffs require a special 5 oz of friction modifier (additive) which prevents a 'scrubbing' feel when turning. That's just a guess. There could be other things causing a scrubbing feeling.

If it's from the front, then perhaps there's a wheel bearing, brake grabbing issue or something rubbing the tire. Hard to say w/o a good look-over and test drive. The dealer should be able to figure it out.

Let us know what it turns out to be.

I haven't been driving the truck much since this post but finally took the truck to the Stealer to have them fix this under warranty. I had the service tech drive the truck on the lot with me in it so he could hear and feel the issue and know exactly what I was bringing it in for. He DID hear and feel the issue but was baffled as the truck has very low miles. He thought it was a problem with the differential. Long story short, when I got the truck back, he told me they couldn't figure out what was wrong but they have a special additive that they added that generally fixes this 99%of the time. I am convinced their 45 point inspection when the truck is in for service DOES NOT include gear lube and that that is what they added. Zero cost to me and the truck turns normal now. Ggrrrr

 

[Rlaf75]

when I got the truck back, he told me they couldn't figure out what was wrong but they have a special additive that they added that generally fixes this 99%of the time. I am convinced their 45 point inspection when the truck is in for service DOES NOT include gear lube and that that is what they added. Zero cost to me and the truck turns normal now. Ggrrrr

So they added an additive to the rear differential and it's normal again but don't know what's wrong? That "special additive" was more than likely the friction modifier and comment #3 in this thread is spot on.

 

[Ural_Guy]

If it's the rear, I would ask if your truck has a limited-slip rear end? They can do that when the outer axle an inner axle turn at different rates (like turning into a parking lot at slow speeds). Depending on your truck and the rear diff your tk has, ...many limited slip rear diffs require a special 5 oz of friction modifier (additive) which prevents a 'scrubbing' feel when turning. That's just a guess. There could be other things causing a scrubbing feeling.

If it's from the front, then perhaps there's a wheel bearing, brake grabbing issue or something rubbing the tire. Hard to say w/o a good look-over and test drive. The dealer should be able to figure it out.

Let us know what it turns out to be.

 

[Ural_Guy]

I had to go back and check the spec sheet. The truck has a Anti-spin differential rear axle so I too believe your assessment was correct. The stealer had the truck for 5 days due to staffing shortages but if this is a common issue it seems like I could have been in and out faster. Thanks for your insight.

 

[Jeepwalker]

Has the 'scrubbing' sound stayed away? That was probably the issue then ...the additive. That's exactly what it feels/sounds like if ya change the rear diff fluid and forget to add it ...or didn't add enough. But goes away when ya add it. It can happen with Ford/GM's too with limited slip differentials. Just one of those things.

Glad it was taken care of.