| Originally posted by bigred318+Dec 21 2004, 04:35 PM--><div class='quotetop'>QUOTE(bigred318 @ Dec 21 2004, 04:35 PM)</div><div class='quotemain'><!--QuoteBegin-TopZecret@Dec 21 2004, 03:32 PM |
ive heard a lot of bmw owners say cleaning the idle control valve takes care of the problem.* But before buying a new o2 sensor it couldn't hurt to check the ignition system.* If a plug wire is arc-ing somewhere or a plug is corroded it may not be firing correctly in 1 or more cylinders. This could cause irregular idle, and it would be a cheaper fix.* just a thought...
yeah if cleaning the ICV doesnt work im going to look into it more before getting my new 02 sensor... how much does a o2 usually run? and wheres a good place to get one?
to take the manifol out is a simple procedure not bad at all, but i do recommend since you are goin in there, buy a brand new set of gasket for all the parts on the manifold, this will ensure you dont have leaks and stuff, also when having it out i do recommend spraying trottle cleaner, or something, to get all the oil deposits out, also, it is possible to take the idle control valve out without removing the manifold, youll have to be good on feeling things with your finger. look for the procedure online, or ask for it if needed..
Also if even after cleaning the idle valve you still have issues, then look your spark plugs, if you have a leaky valve cover gastket, il leaks into the spark plug, fills with oil and no spark action..
check that to ensure smooth operation since you're at it.
of course there is an esay way of doing this.
the idle valve gets it air from the rubber boot, right on the turn of it. take air filter box out the air mass sensor and boot, then look for the hoses, there are2 just follow then and look for the one that goes to the idle valve,. after finding it, old the hose on the upright positon, and pour a solvent into the pipe, a not so strong solve that is suitable to brake loose deposits. what youre tryin to do here is to put solvent on the pipe and by holding the pipe on the upright position you will be flooding the valve with it. let it sit, so the solving process take place and then twist the pipe donw so the liquid can drain.. This is easier than taking the manifold out, and than trying to unclip the pipe that goes from the valve to the manifold, since it has a hard and easy to brake clip that holds the rubber pipe there, may not saound the best solution, but if done correctly, it will save you agravation.
also i worked on mechanical shop, believe me, they would not spend their time trying to unclip somethign they could not see and having the risk of breaking it and having to wait days for a clip..
just an idea..