2004 Yukon xl won't idle

[angrysam]

There is a relearn for the idle but I always forget how to do it! One thing you could do is leave your battery cables disconnected for a few hours and then reconnect and start the truck. I think I had to do that once since I owned my truck and it helped!

This^^^

When you lost battery power, you lost the learned idle speed. It will eventually learn itself again.

I too think there is a way to do it without a scan tool but can't remember.

 

[Dogman_1969]

This^^^

When you lost battery power, you lost the learned idle speed. It will eventually learn itself again.

I too think there is a way to do it without a scan tool but can't remember.

Thanks guys. I drove it to work two days and all is better. Today it idles at about 700 which is normal.

Thanks again.

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