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Brake Booster Vac Line Replacement

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.
1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70
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PeteB
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Brake Booster Vac Line Replacement

Post by PeteB » Wed Dec 14, 2016 12:47 pm

I'm trying to do this as a precaution, no leaks currently, the part from the
manifold to the plastic connector under the air box is easy but the rest to
the booster seems impossible without removing the ABS etc. to get to it.
Any tips? Otherwise I'm just going to leave it since there does not seem
to be an issue at this point.



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abscate
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Re: Brake Booster Vac Line Replacement

Post by abscate » Wed Dec 14, 2016 2:22 pm

I haven't done the vac line but I am fresh off inventing new swear words after harvesting a brake booster of a 99


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Re: Brake Booster Vac Line Replacement

Post by scot850 » Wed Dec 14, 2016 2:34 pm

I have only replaced the vacuum line on an 850 recently as the front portion of the line to the plastic connector when the old line split when I tried to remove it the rubber was that dry. I decided to chicken out to replace the remainder but do recall it was in good shape as it is protected from most of the crap in the engine bay that generated heat. But I'm sure I did do it many years ago either on a 98 V70 XC or a 93 850NA. Like our friend abscate I seem to recall developing a whole new vocabulary of engineering encouragement words. Can't recall how I did it, but did not remove the ABS unit that I recall, but there are different vacuum brake booster styles that may make it easier on one version than another.

Neil.


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abscate
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Re: Brake Booster Vac Line Replacement

Post by abscate » Wed Dec 14, 2016 3:35 pm

System Wide Engineering Accolades Rapport is the HR approved language here on MVS


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Re: Brake Booster Vac Line Replacement

Post by PeteB » Wed Dec 14, 2016 5:13 pm

I'm going to skip it for now since we are not having a problem, thanks.



YELLOWT5R
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Re: Brake Booster Vac Line Replacement

Post by YELLOWT5R » Thu Dec 15, 2016 8:58 am

Hello everyone. I also need to tackle this job on my car. I recently removed the intake manifold for my PCV replacement. The brake booster hose that attaches to the manifold crumbled into pieces when I removed it from the manifold. Is there a Volvo replacement part to this hose that I can buy or can I substitute it with a same diameter vacuum line hose from the auto parts store. I have to remove it from the plastic connection under the air box.
Thanks you everyone



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Re: Brake Booster Vac Line Replacement

Post by polskamafia mjl » Fri Dec 16, 2016 12:28 am

You just need a vacuum hose that's the correct diameter and thick enough not to collapse under vacuum. I sourced a replacement from NAPA.


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Paul-93-850
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Re: Brake Booster Vac Line Replacement

Post by Paul-93-850 » Tue Jun 12, 2018 4:49 pm

O'reilly auto just sold me a hose that has me wondering. The outside diameter is not as thick as original.
Gates 27053 3/8" (7/16" Nipple);
Type: Windshield Washer & Vacuum Hose (Non-Reinforced)
$0.87 per foot
Is this good enough?



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