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Noisy Air Pump When Starting

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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ejburbank
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Joined: 2 June 2004
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Noisy Air Pump When Starting

Post by ejburbank »

I have a 1998 S70. When turn the key, a pump of somekind (air I think) begins to turn on. It remains on as long as the key in in the on position. I appears to be excessively noisy, being heard loudly over the engine idle. Is this normal? And whay kind of device is it?

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