An idle that jumps up and down can be caused by several factors, including fluctuations in air-fuel mixture, vacuum leaks, or issues with the idle air control valve. These inconsistencies can lead to irregular engine performance, causing the idle speed to oscillate. Additionally, problems with the ignition system or fuel delivery can also contribute to unstable idling. Regular maintenance and diagnostics can help identify and resolve the underlying issues.
incorrect operation of choke choke not shutting off after warm up
idle air controler
Jump Up Jump Down Live was created on 2000-04-17.
Could be a number of things. Does it jump when you are driving it and parked? It could be an idle air control valve or even a throttle position sensor, it could be misfiring also. My t/a did the same and it turned out to be the idle air control valve.
Do you mean the rpm's on the tach? The bike should not run down the road at idle. At idle, in gear it should jump forward and die. If not, the idle is too high.
No they can not jump up and down. I hope I helped you!
Could be a idle control sensor but your best bet is to get the computer checked and see what codes come up.
A car may idle up and down due to "Improper fuel mixture". (The fuel in the car may consist of an un-even balance of air or gas). However, there are a few other ways a car can idle up and down.
The Subaru engine could have a vacuum leak, bad head gasket, stuck choke, or several other things causing the problem. Any of these could give problems then ease up as the engine warms up.
idle speed controll or tps throttle sensor
Yes jump and jump untill you bump your head and be dead:):):):):):)
Check/ replace the TPS if the idle is up and down.