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Topic: Idle issues, and more. (Read 6098 times)
Terror_Flynn
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Idle issues, and more.
« 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
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Audi A4 Avant 1.8t Quattro -2001 (AWT)
vwaudiguy
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Re: Idle issues, and more.
« Reply #1 on: June 02, 2015, 08:41:54 AM »
Is it an automatic? Do you know if it has an electric vacuum pump?
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tjwasiak
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Re: Idle issues, and more.
« Reply #2 on: June 02, 2015, 09:53:29 AM »
If I were you I would check it for vacuum leaks.
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Terror_Flynn
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Re:
« Reply #3 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.
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Audi A4 Avant 1.8t Quattro -2001 (AWT)
Jim_Coupe
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Re: Idle issues, and more.
« Reply #4 on: November 23, 2016, 04:18:55 PM »
Check power brake hose.. could be a bad one way valve?
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E85oholic
adam-
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Re: Idle issues, and more.
« Reply #5 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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