2001 Nissan Xterra - Idle acting weird

Idling to high (1500 rpm) and fluctuaitng up & down

Your throttle body probably needs cleaning. If this is something you want to do there are plenty of videos on You tube

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Welcome to the forum…

Do you have a check engine light on?? what are the codes??

Is this a 2.4L or 3.3L???

Sound like you have an IAC (idle air control) valve going bad, try tapping it with the handle end of a screw driver to see if it helps any…
Check for vacuum leaks also…

3.3L IAC shown below…

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Good to see.you back @weekend-warrior

Did you come through Milton OK? Dry? I imagine power was out for a while since your area was closer to landfall than we were.

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Sorry for the late response. glad to see things were ok with you.
We did great with the hurricane. never lost power it just flickered on and off a couple of times. we lost cable and the internet for about a day. I feel very lucky. so many lost so much.

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