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Having a idling problem with my 1990 toyota 3.0 v6. Truck idles fine until I hit the brake and it starts to go up and down but only when brake is pressed.

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  • 195 Answers

Hi Dalton
your toyota problem is the brake booster (servo) ,
I don't know if you have noticed that, when you press the brake pedal you can hear the air leaks , is like a whistling noise.
Good luck

Posted on Apr 11, 2015

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Posted on Jan 02, 2017

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