I have a 2001 Tacoma 2wd Prerunner with a 4 banger. For the past month I have heard a squealing sound coming from the undercarriage. I thought it was the front disc brake wear sensor. I replaced the front pads with no change. Good thing, they needed to be replaced anyway. It sounds like a loose heat shield but I am unable to diagnose the problem anybody else had this issue? Do the rear brake shoes have a wear sensor too?? Help! I don't want to take my truck to a mechanic who will charge me up the ass to tell me they can't find the problem. Thanks in advance and cheers!

 

is the dust metal sheild near the brake touching to rotor?
had that happen to me on a chevy

 

Thanks for the reply. I made sure to check that when I replaced the front pads. The noise stops when the brakes are fully applied.

 

its weird that it stops when the brakes are applied