IACV question, tonight.

[90hp@theflywheel]

i've got a 84 533i (i know it's an e28 and the question IS already on mye28) either way i've got the intake assy. apart and i was told that to fix the problem i'm having with my idler air control valve temporarily, i should "clean" it. once i got it off, i figured i would have some inkling of how to do it based on looking at it. wrong. does anyone here know how to clean an IACV? not specifically the m30, but any IACV in general. i have to work in the morning, and i dont want to put a bad part back into the car. any help is appeciado.

[nando]

spray it out with some brake cleaner, let it dry, and put it back on. when mine was going out that helped me get about another year out of it, but eventually it just died.

[90hp@theflywheel]

i sprayed it out really well with carb cleaner, the thing is completely clean. it didnt fix my wonky idle though </pissed>. someone on mye28 is sending me one for shipping. thanks for the help though

[nando]

yeah, sometimes it doesn't work. after a while mine just stopped working completely, no buzz or anything.

[Adrian_Visser]

yah that sucks i had major porblems with my 84 533i first the idle control valve would let the car die when your foot was off the gas, so i cleaned it with WD40, didnt do a thing then i put another used one in place and it idled too high (about 1100 all the time) i tried cleaning it: nothing it really pissed me off because its such a stupid little thing and i couldnt fix it. i read around alot and learned a few things such as: the idle control valve is wide open at rest and current has to be sent through it to close it. and if i rememeber correctly early icv systems had silver a icv which if the icv solenoid shorted out would fry the icv control unit this was fixed i think when they put a different system in with a black icv. the different icv's are not interchangeable they have different settings. this was all useless information to me because i never did get it to work properly.


as a kicker i have almost the same problem but worse on my new(er) car an 84 325e. when i bought it it idled at 1100 so i thought id clean the icv out... bad idea the old rubber hose decided to split on me and now i have a vacuum leak that makes the damn thing idle like shhit it idles almost the same as if i disconnected the icv electrical connector..... anyways i hope it isnt a constant source of frusteration for u as it has been for u..