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Car Forum / BMW Cars / November 2006Engine racing - 85 318i
I am having a problem which occurs only in cold weather (<50 degrees). The engine idle races up and down and refuses to stabilize when the car is stopped at a light. I've looked at all of the grounds and can find nothing loose. Any ideas? > I am having a problem which occurs only in cold weather (<50 > degrees). The engine idle races up and down and refuses to stabilize > when the car is stopped at a light. I've looked at all of the > grounds and can find nothing loose. Any ideas? From what I've read elsewhere, the cheapest thing to be wrong would be a leak in an air hose (after the air flow has been metered). If you can't find it by manipulating the hoses, apparently spraying carb cleaner in the vicinity will change the idle when it's sprayed near the leak - it could be a gasket/O-ring rather than a hose. I had an Astra with the same problem, and it did have a split hose, but I'm not familiar with the arrangement of hoses in your car. Andrew > I am having a problem which occurs only in cold weather (<50 degrees). The > engine idle races up and down and refuses to stabilize when the car is > stopped at a light. I've looked at all of the grounds and can find nothing > loose. Any ideas? Sticking idle control valve?  SignatureWho needs a life when you've got Unix? :-) Email: john@unixnerd.demon.co.uk, John G.Burns B.Eng, Bonny Scotland Web : http://www.unixnerd.demon.co.uk - The Ultimate BMW Homepage! Need Sun or HP Unix kit? http://www.unixnerd.demon.co.uk/unix.html www.Strathspey.co.uk - Quality Binoculars at a Sensible price >> I am having a problem which occurs only in cold weather (<50 degrees). >> The [quoted text clipped - 4 lines] > > Sticking idle control valve? In an injection engine? > > Sticking idle control valve? > > In an injection engine? Yes. SignatureWho needs a life when you've got Unix? :-) Email: john@unixnerd.demon.co.uk, John G.Burns B.Eng, Bonny Scotland Web : http://www.unixnerd.demon.co.uk - The Ultimate BMW Homepage! Need Sun or HP Unix kit? http://www.unixnerd.demon.co.uk/unix.html www.Strathspey.co.uk - Quality Binoculars at a Sensible price |
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