Handling noise complaints after tire changes

A client came back saying their car makes a hum after I swapped the tires. I rechecked torque and alignment, but the sound persists. What steps do you usually take?

3 comments

3 Comments

linda_nelson491mo ago

I read somewhere road force variation can cause humming even with correct alignment.

the_phoenix1mo ago

My fat fingers would mess up that measurement too.

oscar7541mo ago

Ever think it was just an alignment thing? I used to, but what @linda_nelson49 said about road force makes a lot of sense now.