The Check Engine Soon (CES), also known as the Service Engine Soon (SES) light, comes on due to an OBDII error code being reported to the vehicle's computer. There are literally hundreds of OBDII engine codes referring the emissions system, engine and transmission, for example. A CES/SES code can range from a minor to potentially catastrophic mechanical/electrical problem and should be scanned immediately.
Trouble code P0446 means: Evaporative Emission System Vent Control Circuit
This means that something may be wrong with your engine. Take it in to a mechanic and get everything checked out.
If the problem has been fixed and the light remains on you need to disconnect the battery and then reconnect it. That should reset the check engine light.
Low fluid levels in engine.
how can i check sensor to see which one is bad on toyota avalon
To check the transmission fluid in a 1999 Toyota Avalon, first ensure the vehicle is parked on a level surface and the engine is warmed up. With the engine running, locate the transmission dipstick, usually found near the back of the engine compartment. Remove the dipstick, wipe it clean, reinsert it, and then pull it out again to check the fluid level. The fluid should be within the marked range; if it's low, add the appropriate transmission fluid through the dipstick tube.
To replace the knock sensors on a 1996 Toyota Avalon, first disconnect the battery to ensure safety. Remove the intake manifold to access the sensors located on the engine block. Disconnect the electrical connectors from the old sensors, unscrew them, and install the new sensors. Finally, reassemble the intake manifold, reconnect the battery, and start the engine to check for proper operation.
The 2007 Toyota Avalon typically uses 5W-20 synthetic oil for optimal performance and fuel efficiency. It's important to check the owner's manual for specific recommendations and to ensure that the oil meets the required specifications. Regular oil changes are essential for maintaining the engine's health.
Three things to check, Wheel balance, Alignment, or most likely the front rotors may be slightly warped.
I just had my timing belt and water pump replaced on my 2002 Avalon and had the same scenario...the VSC and check engine lights came on. Found out the Cam sensor also needs to be changed at the same time. Once that was done, the problem was cured.
On a 2007 Toyota Avalon, the PCV (Positive Crankcase Ventilation) valve is located on the engine's valve cover. It is typically found on the driver's side, near the back of the engine. To access it, you may need to remove some engine covers or components that obstruct your view. Ensure to check the owner's manual for specific details and diagrams if needed.
It could be anything, but the most common problem is the O2 sensor.