headpower

My Tl start pulling to the left. I got a 4 wheel alignment reading and my mechanic has no idea how to adjust it

thoiboi

You need to find a new mechanic or a dedicated alignment shop... That's sheet looks like Christmas... toe should be zero all around and if there's damage to suspension. That may be the culprit and it will be evident when you properly align it.

LiquidXTS

Toe need to be zero'd out. I can't really read that sheet but it seems like caster is out meaning one tire is further up than the other. Next check your tires to make sure they are wearing evenly, cuz that can contribute to a pull as well.

nfnsquared

OP, just for starters, your front toe is grossly out of spec. I've never seen toe so far out of spec (left @ 0.77, right @ 0.23). They should be in the range of -0.08 to 0.08, preferably as close to 0 as possible. Did you hit anything on the front end?

Your right rear toe is also out of spec. Your left rear toe is just barely in spec. Is your suspension stock. Are you the original owner?

Canadian3GTL

iTrader: (1)

Looks like you have some bent parts that will require replacement. The hard part with this is you have to replace a pet at a time (unless you can see a bend) and then recheck and see what changed.

First thing to be fixed:

RF suspension something is bent, no reason the caster should be that far out. Will have to start figuring out what's bent whether it's upper control arm, lower control arm, knuckle/spindle, subframe. There is no adjustment you can do for this.

Second thing to fix:
Why is the LF camber so positive? Do you have a camber kit installed? If not a curb has been hit and the bottom of the LF wheel has been pushed in, meaning the lower control arm or the subframe is bent.

You need to get the front camber and caster into spec first. This can be why your toe is so far out.

Once both of those are fixed, adjust rear camber to spec or equally balance it same in both sides. Adjust rear toe to spec.

The rear alignment will affect how the vehicle tracks, an if it doesn't track straight, your front end won't matter because the rear will always be pushing it whatever way it tracks.

Once the rear end is in spec and fixed move to the front, when you get caster in spec on both sides, and camber in spec secondly, then set front toe in spec with steering wheel straight, then your pull will be gone.

Adjustment order is as follows;

Rear camber
Rear toe
Front caster
Front camber
Front toe

Vehicle pull goes like this:

Vehicle will pull to most negative caster, most positive camber.

You want a 0.5 deg lead to the left, ie:

LF caster 3 deg. Rf caster 3.25 deg
LF camber -1 deg. Rf camber -1.25 deg

These are example specs, not what you actually want.
Or if you want balanced camber for best even tire wear

LF caster 3 deg, Rf caster 3.5
LF and Rf camber -1 deg.

With your alignment sheet, you have a total lead of approx 3.34 deg to the left... There is no wonder you have a pull. You have 2.8 deg more lead than ever desired.

Please note. 0.5 deg lead to the left of based on the fact that road crown is sloped to the middle of the road.

All your toe should be able to be adjusted without issues, providing nothing like a tie rod is bent.