After refueling my Jetta VS7 at the gas station, the idle speed tends to be high, around 1000 RPM. Then, during driving, the speed fluctuates. After driving for about ten kilometers, the idle speed returns to normal. Alternatively, if I turn off the engine and restart it, the idle speed also normalizes. I've tested this each time I refuel, and it's always the same situation.

Why does the idle speed of my diesel Korando fluctuate?

What's the idle speed of your Mazda 3 when starting cold? Mine is over 1000 RPM.

Hey folks! Anyone else experiencing this with their Yizhi? What's the issue with the idle speed fluctuating when starting a cold car? Sometimes it hits 2000 RPM right after starting.

Just got it, the engine idle speed fluctuates when cold. Any fellow car owners experiencing this?

When I start the car, the idle speed is around 2000 RPM, but after a while, it drops to 1500 RPM. It takes quite a long time to go down to around 1000 RPM. Does anyone know what's going on?

I need some advice from experts: I have a 2013 1.4T Touran. Recently, the engine occasionally makes a loud noise after starting, and the idle speed is over 1100. But after turning off and restarting, the engine sounds normal, and the idle speed is around 700, back to normal. What could be the issue?

Has anyone experienced idle speed being sometimes high and sometimes low? When I'm waiting at a traffic light, sometimes it's 7500, sometimes 9500, and this is without the AC on. The last two times, right after refueling, the idle speed was 9500. Not sure what's going on.

The Volvo C30 2.0D has a normal idle speed of 850±20 RPM when in gear, but the idle speed is high at 950±20 RPM when in neutral. What's going on?

It's normal for the idle speed to fluctuate when you turn on the air conditioning in a 2013 1.6 manual fashion model. Sometimes the RPM might go up to around 900 or almost 1000, and other times it might be around 800. If you restart the engine and the RPM goes back to around 800, it's usually not a cause for concern.

After refueling my Jetta VS7 at the gas station, the idle speed tends to be high, around 1000 RPM. Then, during driving, the speed fluctuates. After driving for about ten kilometers, the idle speed returns to normal. Alternatively, if I turn off the engine and restart it, the idle speed also normalizes. I've tested this each time I refuel, and it's always the same situation.