After I purchased the vehicle last year, I was short on time before a road trip and had the local Toyota dealer perform a front brake job. I knew the front rotors were warped so it was for rotors and pads. After I got the car back, it drove fine (i.e., no more pulsating brakes).
In the last few months, the pulsating brakes have come back intermittently. I just thought the rotors warped again. However, before a long road trip this week, I re-torqued all my lug nuts and rear hub nuts (last month - I rotated my tires and performed a rear axle service and brake job, replacing rotors, pads, seals and bearings - not dealer performed this time). So I re-torqued the rear hub nuts per the FSM and decided to check the fronts. The front hub nuts (to my surprise) were only finger tight. I torqued those to 26 ft-lbs per the FSM.
Over the last 2 days I haven't noticed the brake pulsations. That's the good news. The bad news is I'm wondering if the hub nuts not being torqued to specs (by the dealer?) if any permanent damage was done to the studs on the front hubs? Or is it purely coincidence that the pulsations disappeared after the hub nuts were torqued to specs?
Regardless, when I have some time this summer, I'll be performing a front axle service and switching the birfs from one side to the other so I can check for visible damage then but thought I'd ask the experts here. I can imagine that the nuts not being torqued down correctly maybe prevented the conical washers from doing its job in spreading the load and causing wear/shear load on the studs. Just a guess.
Thanks in advance for everyone's help.
FWIW - when serviced the rear axle last month, I checked the fill plug on the front knuckles and both the level and condition of the grease inside looked pretty good given age and mileage of the car.
In the last few months, the pulsating brakes have come back intermittently. I just thought the rotors warped again. However, before a long road trip this week, I re-torqued all my lug nuts and rear hub nuts (last month - I rotated my tires and performed a rear axle service and brake job, replacing rotors, pads, seals and bearings - not dealer performed this time). So I re-torqued the rear hub nuts per the FSM and decided to check the fronts. The front hub nuts (to my surprise) were only finger tight. I torqued those to 26 ft-lbs per the FSM.
Over the last 2 days I haven't noticed the brake pulsations. That's the good news. The bad news is I'm wondering if the hub nuts not being torqued to specs (by the dealer?) if any permanent damage was done to the studs on the front hubs? Or is it purely coincidence that the pulsations disappeared after the hub nuts were torqued to specs?
Regardless, when I have some time this summer, I'll be performing a front axle service and switching the birfs from one side to the other so I can check for visible damage then but thought I'd ask the experts here. I can imagine that the nuts not being torqued down correctly maybe prevented the conical washers from doing its job in spreading the load and causing wear/shear load on the studs. Just a guess.
Thanks in advance for everyone's help.
FWIW - when serviced the rear axle last month, I checked the fill plug on the front knuckles and both the level and condition of the grease inside looked pretty good given age and mileage of the car.