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5.4 2V 2002 Vacuum Diagram??

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Old 01-14-2011, 10:58 PM
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5.4 2V 2002 Vacuum Diagram??
Can anyone point me to a diagram of the vacuum system on the 5.4 2 valve engine? I've got a vacuum leak somewhere and can't find it. I'm missing a connection somewhere and I want to check them off as I go over each one.

Thanks
 
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Old 01-15-2011, 12:42 AM
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Have you checked the PCV elbow?
 
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Old 01-15-2011, 08:34 AM
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The factory put a vacuum diagram under the hood. Is it still there?
 
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Old 01-15-2011, 10:59 AM
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Read this caption:

 
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Old 01-15-2011, 12:07 PM
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Originally Posted by Steve83
Read this caption:

Yea...I feel stupid now :o
 
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Old 01-15-2011, 01:04 PM
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All the connections/hoses look okay. So I bought a gauge to check the pressure and I'm having a hard time identifying where to hook up to the intake manifold. This engine looks so different than other cars I've worked on so teach me oh knowledgeable ones. Can anyone one provide a picture of where to hook up the gauge? Thanks

Nevermind...figured it out myself. Vacuum pressure is normal.
 
Last edited by Bigwheel; 01-15-2011 at 01:46 PM.
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Old 01-15-2011, 10:04 PM
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are you getting codes 171 and 174?
 
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