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Title: Idle issues, and more. Post by: Terror_Flynn on June 02, 2015, 08:01:30 AM When I start the car (example: in the morning) I get an idle issue, it's jumping and I have to press the throttle pedal or else the engine dies. But after I drive a few feet all is back to normal.
Sometimes when I start the car and the idle is jumping and so on I also got no brakes, the brake pedal is stiff as of the car has lost the power brake assist. But all is back to normal when I drive the car a few feet. I have checked with Vag-Com and I have no fault codes. Car: Audi A4 B5 1.8t quattro -2001 Title: Re: Idle issues, and more. Post by: vwaudiguy on June 02, 2015, 08:41:54 AM Is it an automatic? Do you know if it has an electric vacuum pump?
Title: Re: Idle issues, and more. Post by: tjwasiak on June 02, 2015, 09:53:29 AM If I were you I would check it for vacuum leaks.
Title: Re: Post by: Terror_Flynn on June 02, 2015, 12:38:56 PM No, it's an manual.
Yeah, that's my thought too, about a vacuum leak, any specific and usual place to check on these cars? A bit unsettling that the power brake assist stops working when I have these idling problems. Title: Re: Idle issues, and more. Post by: Jim_Coupe on November 23, 2016, 04:18:55 PM Check power brake hose.. could be a bad one way valve?
Title: Re: Idle issues, and more. Post by: adam- on November 24, 2016, 03:15:49 AM A vacuum leak. Check one-way valves, check pipework leading to the servo.
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