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vacuum hose location

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Old Oct 6, 2010 | 06:10 AM
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bchez
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Post vacuum hose location

My 99 f-150 with 5.4L is showing me the engine codes 171 and 174, I changed the MAF sensor and it still doing the same. I've read here that there could be a couple of craked vacuum hoses which ones could they be and where are they located ?
 
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Old Oct 6, 2010 | 09:57 AM
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chaser1602
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From: sanford
First and most obvious is pcv. Follow it to the back of int man. Usually the rubber piece that connests to back of manifold.Start there
 
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