3.0 L Idle problem

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11-19-2022, 09:14 AM

Jsnook56

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Join Date: Dec 2020

Posts: 1

3.0 L Idle problem

Engine idles fine at start , after you drive it and put in park , the idle starts rising slowly to 1500 to 2000 RPM . If A/C is on it does`nt do it . There is no vacuum leaks .

11-19-2022, 10:06 AM

02 LW300

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Join Date: Apr 2015

Location: Willamette Valley, Oregon

Posts: 2,365

Please scan it for codes. Might be simple, when my L200 idles fast it needs a new thermostat and sets a code with no check engine light.

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