Why does Toyota Sienna have a high idle RPM?
It will take some time for the computer to relearn the target RPM. There is no IAC motor to control idle on the second gen siennas. The computer controls the throttle plate at an angle to control idle RPM. Now if you clean the throttle body bore you have more air going around the plate causing a higher idle.
What kind of noise does a Toyota Sienna make?
Ive got a 2004 toyota sienna thats got a fairly loud ive got a 2004 toyota sienna thats got a fairly loud knocking noise on start up when the engine idles low but ones the rpms level out it goes away … read more Andrew
What can I do to my Toyota Sienna?
2000 Toyota Sienna: that will start fine..engage..high speed metallic My son has a 2000 Toyota Sienna that will start fine sometimes but others the starter seems to not engage the motor and spins with a high speed metallic whir. Some have said that it is too expensive t…
What should I do if my idle goes up high?
About 90% of the time if you remove the throttle body and clean the carbon around the throttle plate and bore then remove the idle control motor from the bottom of the throttle body and clean this valve with a toothbrush and carburetor and choke cleaner then reinstall everything it should take care of your problem. This is the first place to start.
What’s the idle speed on a Toyota 94?
The 94 only goes up to 1800 and settles into a 750 rpm idle. The 95 goes up to 2000 and settles into a 700 rpm idle. I’m guessing both are acceptable.
How can I tell if my idle control valve is working?
To check if an idle control valve is working properly, start by turning on your engine and letting it run for a minute or 2. Then, when it’s at an idling speed, take note of the RPMs in your car. Next, turn the engine off and disconnect the idle control motor under your hood.
Can a bad throttle position sensor cause idle surging?
Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges. 3) Check Engine Light
When is a bad throttle position sensor a warning sign?
Engine won’t idle smoothly, idles too slowly, or stalls If you start to experience engine misfires, stalling, or rough idling when the car is stopped, it can also be a warning sign of a failing TPS. You don’t want to wait to get this checked out!
Why does my car pop when I press the throttle?
As the engine is running and you have your hand cupped over the opening, press the throttle to see if the popping gets worse, quits or smoothes the engine out. By choking the engine this way you introduce more fuel to the cylinder. The result tells us to either move on or stop and check the fine inlets for the primary fuel meter circuit.
What happens when you hesitate at the throttle?
5) While driving at normal road speeds (after the hesitation) or accelerating and the throttle is not fully closed, there is no miss whatsoever, and the engine performs very smoothly. While ever the throttle is partially or full open, the engine performs very smoothly and with normal power, apart from the initial hesitation.