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The Car Doctor
How are the terminals, clean and tight? Check the ground cable where it mounts to the engine and body and make sure it is clean and tight..
Throttle cables seldom stick unless it is kinked somewhere. If thats the case, it needs replacement. You should try cleaning the throttle body. Take the intake tube off. Spray some carb cleaner on a rag, open the throttle (while the engine is off), wipe off the throttle plate the best you can. Then get a toothbrush and spray it w/ some carb clean, scrub all the corners and edges to get all the deposits off. Wipe it all off and your good to go. Also, if the car has cruise control, make sure thats not binding or acting up.
You may have a bad wheel bearing. Does the noise change when you turn right or left? It may also be bearings in the differential, which is more serious. Or it could be something as simple as rust on the brake rotor rubbing on the backing plate. It's tough to diagnose a noise through a computer, so you should get it checked out.
The spring loaded belt tensioner may be weak causing the belt to squeak when the extra load of the A/C is turned on.
Are any of the lights or buttons on the climate controls non responsive or acting funky. If so, it likely needs the climate control unit in the dash. If not, it could be the motor that moves the mode door in the heater box.
When you bled the brakes was there a heavy stream of fluid coming out the bleeder or did it just dribble out? Sounds like you might have a restricted brake hose that doesn't release pressure quickly enough. Or maybe an issue with the e-brake shoes binding.
Does it shake all the time? when you brake? when you hit a bump? Probablyeither tires/wheels, brake rotors, or a steering stabilizer but a little more info would be helpful
Sounds like its time for a new transmission or a rebuild.
Most likely a ball joint or sway bar link, but as Zee said, most shops will find this type of problem for no charge.
Is the exhaust leak before the 02 sensor. If so, that would throw off the sensor readindg and cause a hesitation. If not,it could be many things, but most likely its either an intake gasket leak or an o2 sensor. Spray some carb cleaner on the intake gaskets while the engine is running. If there is a change in RPMs, you've got a leak. If not, its probably an o2 sensor because if it were anything else it would likely have bank 2 lean code or misfire codes. Be careful because some camrys w/ cali emissions have air/fuel sensors instead of o2 sensors. If that is the case, you should only use a Toyota part and replacing it w/o confirmation is an expensive guess. Let me know if you have any more questions.