Problem prolly isn't the kind of hose you're using... - Saab 900 Bulletin Board - Saabnet.com
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Problem prolly isn't the kind of hose you're using...
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Posted by gorper (more from gorper) on Sat, 20 Dec 2003 23:42:18 Share Post by Email
In Reply to: Vacuum hoses popping off..., Alex Bucell, Sat, 20 Dec 2003 00:54:01
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...the problem may be that you're using the wrong size. Use 3.5mm I.D. hose. If you don't have access to metric sizes, get the next *smaller* standard size. If you go larger, then, well, they can blow off.

Another possibility is that the hose has gotten old & has become enlarged at the nipple but but hasn't yet cracked at the nipple, . Trim off 3/4" and stick it back on; you should be good to go. If it cracks when you put it back on, then it's a good time to replace hoses to vac adv/ret capsule, fpr, and hvac res. - 15' should be plenty. personally, i would leave the boost gauge line alone unless it's too far gone.

clean nipples of any oil/greasy gunk before fitting replacement hose.

Silicone is more esthetically pleasing than rubber. But rubber is perfectly adequate (can easily handle the boost/vacuum your car produces), lasts plenty long (I got 130K mi. from original set), costs less, and is readily available at any parts store. Rubber also *shrinks* when it's warm.

posted by 67.40.2...

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