Well after all the great suggestions I got for my "running warm" problem, I thought I'd run the next issue by you guys. My '90 Corolla (4AFE 5-speed) has a serious shimmy when braking from anywhere over about 45 mph. Slower than that, there's no problem. The faster I'm going when I start to brake, the worse the shimmy.
My first guess is warped rotor(s). They've never been turned since I've had the car. There doesn't seem to be any play in the wheels when they're up off the ground, and they spin about as freely as any FWD wheel would, it seems. I've also noticed more road noise at higher speeds than it had previously. Kind of sounds similar to 4x4 truck tires rolling over the pavement, but not nearly as loud. The noise is audible even if I shift to neutral and let it coast. The slower it goes, the less the noise, until it becomes inaudible by about 30 mph.
Any ideas?
My first guess is warped rotor(s). They've never been turned since I've had the car. There doesn't seem to be any play in the wheels when they're up off the ground, and they spin about as freely as any FWD wheel would, it seems. I've also noticed more road noise at higher speeds than it had previously. Kind of sounds similar to 4x4 truck tires rolling over the pavement, but not nearly as loud. The noise is audible even if I shift to neutral and let it coast. The slower it goes, the less the noise, until it becomes inaudible by about 30 mph.
Any ideas?