Curious Tire Wear

[hotrodalley]

1500 Limited. At about 15000 miles I noticed wear on left front outside tire (cupping). I have had the alignment checked 3 times and rotated the tires. Same wear continues. I am thinking it must be wearing while vehicle is moving as alignment and tire pressures are perfect. The vehicle does have air suspension. Any thoughts ?

 

[Richard320]

If the wear follows the tire, something's wrong with the tire. But if it appears on whatever tire is on left front, and the alignment is good, I'd say a bad strut.

 

[brian42]

Was the alignment check at the dealership or a shop that knows what they're doing?

As much as the dealership is a one-stop-shop for everything that does not mean they are good at it. Some may be, but overall I would not consider them 'experts' in that field.

My truck was in spec. Good tire wear and tracked straight (no pulling) but the wheel was just a l-i-t-t-l-e off from center. Enough that I'd finally had enough and took it to Firestone. They told me it was in spec but, in addition to straightening the wheel, made some adjustments within tolerance for it to drive better. Sure enough it was better and I was in spec to start with.

I was very skeptical early on when I bought my truck as it had been out for less than a year and many shops (outside of dealerships) did not have the specs for the "all-new" RAM. Now that the 5th gen has been out for several years that's not the case.

Just my .02

 

[djevox]

1500 Limited. At about 15000 miles I noticed wear on left front outside tire (cupping). I have had the alignment checked 3 times and rotated the tires. Same wear continues. I am thinking it must be wearing while vehicle is moving as alignment and tire pressures are perfect. The vehicle does have air suspension. Any thoughts ?

I agree with Brian. The question here is did they follow the procedure to set the air suspension in the proper mode for an alignment.

 

[brian42]

I agree with Brian. The question here is did they follow the procedure to set the air suspension in the proper mode for an alignment.

I also have heard that you need to disable the lane keep assist otherwise it interferes with the alignment also.

 

[grimreefer]

I also have heard that you need to disable the lane keep assist otherwise it interferes with the alignment also.

I don't see how it would since that doesn't activate until 37 mph. I just enable Wheel Alignment Mode and it's good to go.