How to test Magnaride shock?

[techspy]

Trying to troubleshoot a suspension issue. This is actually on a 2015 Yukon XL Denali but due to having a lift figured it is more appropriate here. Has a Fabtech lift installed approx 5k miles ago. Drove perfect with no pulling and steering wheel straight. About a month ago noticed steering wheel offset and slight pull that got much worse under braking. Had an alignment and it is better but still pulls when braking hard. If I hold the wheel in the position to go straight when I brake, it pulls. If I let go of the wheel when I brake, it brakes pretty straight but the wheel turns a good bit. Also, when backing up (not when the trans is put into R but when I let off the brake and start moving) I hear a clunk from the front suspension.

 

All bolts/parts etc look fine. Nothing loose that I can tell. Possibly a brake issue? I am thinking possibly a bad shock. No obvious leaking on either of them. If any electrical connection was disconnected it would throw a code correct? Pulling right would indicate the right shock would be the cause correct? Any other way to test the shock? Or any other suggestions on the cause?

 

Thanks

Edited September 9, 2021 by techspy

[CamGTP]

I've usually always found that pulling while slowing down was a braking problem.

 

I'd be checking your calipers and slide pins.

[techspy]

Yep, jacked it up today and found they left a bolt loose when doing the alignment! Took it back and they got it taken care of. Was not a happy camper!