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Re: Vacuum Leaks and bulging or collapsed hoses (archive)
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Posted by Andy Morang on April 25, 2000 at 08:16:13:

In Reply to: Vacuum Leaks and bulging or collapsed hoses posted by John Gilson on April 24, 2000 at 14:25:46:

: ...I just got fooled by two hoses that looked fine untill I started the car and then they would collapse, starving the car of air and causing it to stall if I didn't keep blipping the throttle.

Where were these hoses you just described? I still occasionally have the surging idle problem on my 1981 320i, even though, within the last year, I've replaced with new parts:
1. all my vacuum hoses
2. injector bushings
3. the two big rubber boots on the air intake side
4. the dipstick
5. charcoal canister
6. O2 sensor
I keep thinking that there must still be a subtle vacuum leak somewhere that I have not yet isolated. It's maddening.

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