Idle revs, or idle RPM (revolutions per minute), typically range between 600 and 1,000 RPM for most gasoline engines. However, this can vary depending on the vehicle make and model, as well as engine type. It's important to consult the owner's manual for the specific recommended idle speed for your vehicle. Proper idle revs ensure smooth engine operation and prevent stalling.
A vaccum Leak
Possibly a stuck or sticking EGR valve.
You need to turn off the Overdrive switch.
You might have a dead cylinder or a misfire in one of your cylinders.
What revs should my audi 1.6 show at seventy miles an hour and how many revs should it show when ticking over
If it is running fine at high revs the most likely problem is an injector
Check your radiator is full
To adjust the revs on a 2004 Mitsubishi Lancer, you'll typically need to modify the idle speed through the throttle body or the idle air control valve (IACV). Start by locating the throttle body and checking for an adjustment screw, which can be turned to increase or decrease idle RPMs. If the IACV is responsible for idle control, cleaning it or replacing it may help if the idle is unstable. Always consult the vehicle's service manual for specific procedures and specifications.
Check the Idle Air control valve. This lets air bypass the throttle body plate when the car is at idle or low revs.
Yes it does, mine has exactly the same problem, can be the MAF sensor, fuel pump problems or the idle sensor. just changed the MAF on mine saw some improvements but still revs up and down occasionaly
add coolant.
Try your idle air control valve.