Strange steering pull when accelerating

[DIBstang]

Long time lurker and very occasional poster here.... I have a 2021 GT/PP with no mods and OEM Pzero tires. Over the past couple of days the car has developed a significant pull to the left when accelerating - both from a slow roll and highway speeds. Also, it feels like the back end is shifting slightly to the right when this happens.

It has never done this before, so it obviously seems very strange. Tire pressures are ok and i dont see anything visable during a very basic look around.

Any thoughts/ideas on when might be going on?

Thanks

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[mookieit]

How is your alignment?

 

[Skye]

The tires being used now, are they the same age and mileage? Same tread depth? Any recently replaced?

 

[DIBstang]

How is your alignment?

It has never been aligned, but up to this point nothing out of the ordinary in terms of wheel feel/position, tracking, etc.

 

[DIBstang]

The tires being used now, are they the same age and mileage? Same tread depth? Any recently replaced?

all the same original tires with 41,000 miles. no out of the ordinary tire wear.

 

[Skye]

So same tires, tread height and wear. That's good.

Tires can develop radial pulls over time. But in these examples, the sensation is often constant. In your case, it seems to only be happening on acceleration.

While the tires could be rotated front to back and vice-versa to see if anything changes or other tells present, Edit, car is PP, with standard, OEM, staggered setup.

I wonder if something with the diff is going on? Spitballing...

 

[Mach VII]

I want to know how you got 41k out of a set of P-Zeros...

 

[DIBstang]

Tires can develop radial pulls over time, but in these examples, the sensation is often constant. In your case, it seems to only be happening on acceleration.

While the tires could be rotated front to back and vice-versa to see if anything changes or other tells present, I wonder if something with the diff is going on? Spitballing...

It is a PP so the tires cant go back to front, but your diff comment got me thinking again because it does feel the back end is shifting to the right or maybe some kind of uneven power application.

 

[DIBstang]

I want to know how you got 41k out of a set of P-Zeros...

haha great point - its closer to 20. I swap out tires and rims for winter. and to your point, they are garbage tires. the backs are basically slicks at this point.

 

[Torched10]

I think it's the tires.i only got 15000 on my new carv and it started pulling on me.whrn you get them get them aligned

 

[cerbomark]

tires (rotate them side to side if you can)(if they are slicks then it could just be trammling);replace
alignment;
something amiss in the rear; (axle related?)

I would do it in that order. The first two are only maintenance anyway.

 

[RiotfunK]

Get new tires

 

[ORRadtech]

I want to know how you got 41k out of a set of P-Zeros...

That was my first thought.
My first guess was it's time for new tires. I hated the PZeros especially once worn.
Second guess was wheel bearings. But since the OP said the rears are almost slicks I'm going with tires.

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