My X5 had a bad vacuum valve but never did what you are describing. That said if I am waiting for a traffic light the RPM's jump a little bit. Like 50-100 rpm it does not cause the rpm gauge to fluctuate. I guess wrote this because I want to know what is the I.L. and could it be causing this.

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5G Ford Ranger Lariat 2022

E36/7 Z3 97 1.9 New project

E53 X5 4.6is 02 OFF to Bring a trailer soon
Land Rover Disco 2 03 - sold
Kawasaki Z900B 17- sold
E53 X5 3.0 5M/T 01-sold-again
E53 X5 4.4 05-the beast a 4.8tu swap. at 150k -SOLD

E83 X3 3.0-the wife's - sold
R56 Mini Cooper S 07-sold
E36 M3 97 - sold
E36 M3 98-sold
E39 528i 00-sold
E30 318i 91-sold
E36 M3 95-sold

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