Hi all, have a 1997 a4 se 1.8 petrol.

[Ed Stratton]

At idle my engine guns or revs go through 1000 and the car shakes or infrequently engine stalls completely. A friend has told me that it may be the breather pipe that has a hole or crack. He's not sure where it is as the Hayes manual is vague but he thinks you need to remove the manifold to replace pipe. A local garage has said this is a full day job at £47 labour per hour but I'm dubious as they tried to overcharge me the last time i used them. My question is, does this sound like a breather pipe issue and can the pipe be replaced without removing the manifold? Any replies will be most welcome.

 

[Oranoco]

Is it revving up or are the revs dipping under 1000?

 

[Sandra]

At idle my engine guns or revs go through 1000 and the car shakes or infrequently engine stalls completely. A friend has told me that it may be the breather pipe that has a hole or crack. He's not sure where it is as the Hayes manual is vague but he thinks you need to remove the manifold to replace pipe. A local garage has said this is a full day job at £47 labour per hour but I'm dubious as they tried to overcharge me the last time i used them. My question is, does this sound like a breather pipe issue and can the pipe be replaced without removing the manifold? Any replies will be most welcome.

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[Ed Stratton]

At idle my engine guns or revs go through 1000 and the car shakes or infrequently engine stalls completely. A friend has told me that it may be the breather pipe that has a hole or crack. He's not sure where it is as the Hayes manual is vague but he thinks you need to remove the manifold to replace pipe. A local garage has said this is a full day job at £47 labour per hour but I'm dubious as they tried to overcharge me the last time i used them. My question is, does this sound like a breather pipe issue and can the pipe be replaced without removing the manifold? Any replies will be most welcome.

 

[Ed Stratton]

Hi Orinoco, it guns above 1000 revs, then suddenly drops below 850 (idle) but only does this in first gear. Car runs fine 2nd gear and above.

 

[Oranoco]

Have you tried cleaning the throttlebody out and resetting it?