Question about 2002 Toyota Camry
SOURCE: 2009 Toyota Camry problems
All Toyota auto trans cars downshift when descending a hill when you tap the brake. This is called "Downhill Shift Logic"; what this is for is to eliminate the double shift when you come to the bottom of a hill and then accelerate. Normal condition. Usually happens above 38 MPH.
Also: The cruise will accelerate when going uphill. Normal condition.Plus: The cruise will not disengage back to the set MPH after you top the hill. Toyota recommends to disengage the cruise when encountering steep terrain.
Posted on Sep 09, 2008
well it didn't hurt anything to put the new fluids in. Always good to keep up on those some of the time forgotten routine maintenance. The erratic idle could be caused by a number of things. A leaking intake manifold gasket is one but usually is a steady higher racing idle. Could be clogged injector/s, not sure if you have a throttle body which would house a single injector or a fuel rail which would house 4, one by each cylinder. The other possibilities are any of the sensors that feed the information needed to the brain/on board computer to control the air and fuel to the engine under all conditions for optimal performance, and the emission control system.
Trouble shooting comes with several options. Fortunately most vehicles since the start of the electronic fuel injection systems, that would be everything since the end of the carburetor, comes with some description of an on board diagnostic system for trouble shooting the sensors and such.You can purchase a diagnostic tool, and you will need to purchase a Haynes or Chiltons Manual for your year make and model which will tell you what all of the different codes mean. You can find these at any of the auto part chains such as Auto Zone, Discount Auto Parts, Pep Boys etc. Most of these stores will test your on board diagnostics with their tool free of charge. The Manual never hurts to have in your possession as it covers mostly everything from A to Z for mechanical and electrical repair and troubleshooting. Some vehicles have a way of giving you error msg's by a series of turning the ignition key on and off a certain number of times, and giving a code by a series of an in dash light blinking and pausing, this would also be covered in the manual for your make and model.
Hope this helps,
Posted on Nov 25, 2008
SOURCE: my 93 celica gt 2.2
You guys are having an ignition misfire. Start by replacing the plugs, (ONLY use NGK plugs on a Japanese vehicle. There's a reason Bosch plugs are so cheap) and gap them correctly. If you have a cap and rotor in your distributor, replace them, too. If that doesn't do it, check the plug wires for cracks, scoring, or arcing (will look like chalk dust).
After all that, check the wiring from the coil and the coil itself. It could be something as simple as a corroded contact that needs to be cleaned.
Posted on Jan 04, 2009
When you take your battery out and put a new one in all your computer controls have to be reset. You need to drive the car at 55 MPH for 2 min or so, stop, go through normal drive cycle, stop and go and then if it don't straighten out you need to clean the throttle body and the idle air control valve. Hope this helps. PHil
Posted on Jan 09, 2009
20 year old vacuum hoses are done. Replace all you can. The little plastic ones too. They control everything, transmission, computer, fuel, brakes, everything.
Posted on Jan 10, 2009
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