02 Tracker Idle Adjustment

I recently purchased an 02 Tracker, automatic, 4wd, 2.0 liter, in like new condition. Everything seems good except the idle is about 500rpm in drive,that seems a little low. I have looked everywhere for a service manual, but can only find them up to 2001. Can anyone help ? would like to "up" the idle about 50 to 100 RPM's. When I first put it in drive it "shudders" for a few seconds,then is OK. Any help greatly appreciated.........Thanks

hey had to go straight to the horses mouth. on that website click where it says owners center. registration is free, and you can download the manuals for free.

hope this helps

Terrell

http://www.chevrolet.com/contactus/servicemanuals/

You will find that the idle is controlled by the computer. You may have a throttle position sensor problem or something like that. I had a bad O2 sensor and mine would shudder at idle sometimes, but I had a check engine light and a code.