On a 1996 Honda Accord do the rotors have to be turned on the car or can they be removed and taken to a machine shop?
Rotors are always turned off the vehicle. They are put on a lathe and a thin sheet of metal is removed to make the surface smooth again.
How do you get the front rotors off of a 1989 Tracer There are 4 bolts that need to be removed from the rear of the rotor but there is no access to them?
If they are warped, they need to be turned, if they are groved, they need to be turned. If they are glazed, they need to be turned. In general, if you are working on the brakes, they need to be turned. If they are too thin (not wide enough across) to be turned, they need to be replaced. Many newer rotors are not thick enough to be turned, so you just replace them every time…
Is the electronic steering in a 2007 Saturn Ion directly related to the brakes in any way. Which makes you think that possibly you have warped rotors?
Your rotor has groovs grinded into it only on th left side should you just change the 1 rotoe and all pads?
You may not have to change the rotor. If the groves are not very bad and the rotor has never been turned before, you may be able to just have it turned. Remove both rotors and take them to a machine shop that turns rotors. They will tell you if one or both needs replacing, or they can be turned. Install new pads for sure.