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| smee |
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when I turn off the engine a squeeling noise (lasts for a few seconds) is coming from the PCV valve on rocker cover
is the valve supposed to have a noticable rattle with engine going like the XF's? the ball is just goes stright up when turn on will this effect performance if not operating properly? |
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| TURBO_GHIA |
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it should move freely ,ie not get stuck
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| smee |
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EDMONTY wrote: it should move freely ,ie not get stuck
yes but only when the engines off seems to be fairly high vacuum through the valve? |
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| tickford_6 |
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Posts: 6449 Joined: 11th Nov 2004 |
manifold vacuum is aplied to the valve.
if you're unsure if it's stuffed or not just get a new one from ford they are very cheap. make sure you get an EB on as they are a strnger build made of streal not plastic. the later plastic ones often break and drop the valve into the rocker gear and can break stuff |
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| smee |
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got a new one, they has a metal base and plastic top
seemed to do stuff all - but the suction niose still happens as the engine dies? |
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| Disco Frank |
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maybe some residual vaccum ?
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| smee |
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is this common? - residual vac?
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| Waggin |
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Yes, they are supposed to rattle
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