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C30 / S40 & V50 '04-'12 / C70 '06-'13 General Forum for the P1-platform C30 / S40 / V50 / C70 models |
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What is this?Views : 1008 Replies : 10Users Viewing This Thread : |
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Dec 30th, 2012, 14:14 | #11 |
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The vacumm pump is there for that brief period when you start the engine and the rpm goes up to 1500 for a minute or so . when the engine is in this mode there is not enough vacuum in the manifold so the electric pump is needed . Be careful when you first press the brake after starting off from cold ...
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