Why does my Toyota Corolla idle high?
A faulty or blown fuse in other electronically controlled systems can cause the Idle Air Control (IAC) motor to malfunction, leading to a higher than normal engine idle speed. Malfunctioning Throttle: A malfunctioning throttle system can cause both a high or low idle as well as an engine stall.
What causes a car to idle too fast?
In modern vehicles, engine idle speed is most often controlled by the idle air control (IAC) motor. When your car’s throttle is malfunctioning, this can cause your car to stall or idle high. Often this is a result of dirt buildup in the air intake. Other times it can be a problem with a cracked intake tube.
How do you clean the idle air control valve on a Toyota Corolla?
Spray the inside of the IAC valve with throttle body cleaner. Clean any carbon, dirt and debris using a wire brush and rag. Place the IAC valve back onto the mount and replace the two bolts that secure the valve in place. Use the socket wrench to tighten and secure the bolts.
How to fix issues with bad idle speed Toyota Corolla?
How to fix issues with bad idle speed VVT-i engine Toyota Corolla. Years 2000 to 2015 – YouTube If playback doesn’t begin shortly, try restarting your device.
What kind of engine does a 1998 Corolla conquest have?
Hi all, I’ve got a 1998 Corolla Conquest with the 1.8L motor (manual) and have a problem with excessively high idle. I’ve trawled all that can be found on-line and had very little satisfaction. There is a Youtube clip of an Irish mechanic fixing a Carina (engine bay looks identical to mine) and having tried that approach zilch.
What should the idle speed be on a Toyota 04 XR?
Nah, if the idle is above 1000 after being warmed up with the A/C off, something is wrong. My manual 04 XR idles at nearly 2000 on a cold day when I first start it, but after the engine warms up it goes down to about 700. Your automatic should idle at about the same speed.
Why do I have a high idle speed?
To my logic, it seems as if the IAC is stuck and thus registering as if its cold and thus that is why i have such a high idle speed. When normal, i had an idle speed of close to 800 rpm’s. Now in gear, idle is around 1100-1200 and in park/neutral between 1600-2000.