Idle Problem

[Rich328]

I've had the car into my cousins garage for him to look at the idle problem, and he's told me that its got an air leak somewhere, thinks it could be the gasket on the manifold?

[kyle_baker]

idling high or low or just unsteady?

[Rich328]

The car is idling unsteady mate, its jumping up n down the rev counter - not massive amounts but sometimes it sticks at 2,500revs. im just worried about the cost to repair m8.

[kyle_baker]

well that gasket on the manifold should be that big of a deal to replace. there are some other threads that have technics about finding air leaks like this. someone please correct me if i'm wrong, but i beleive they suggest getting a can of WD-40 or something and barely spraying it around parts that you think the leak is around and if the motor gets a small boost when you spray it there then you can pin point the spot.

someone please correct me or by all means go into more detail, i just wanted to get the basic idea across, lol.

cheers!

i'll see if i can find where they describe this process alittle more thurl.

[kyle_baker]

also another thing to check is the ICV... i'll post a link for you in a sec......

[kyle_baker]

here ya go, furious did an excellent writeup on this, this may or maynot help, alot of people try this first when they have idling problems....................

http://www.bimmerwerkz.com/forum/ind...?showtopic=506

[theruss1an1]

Its most likely the ICV.

-Serge

[Delmarco]

Or IDLE PULLEY TENSION is loose or failing.
It's the wheel around your main belt.