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Rough idle...Running too lean HELP?????

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Old Jun 13, 2006 | 09:54 PM
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cmays
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Question Rough idle...Running too lean HELP?????

I recently noticed that my 98 F150 (5.4L) was idling rough. I plugged my Super Chips diagnostics computer into the truck and the error message read:
Bank 1 Running lean
Bank 2 Running lean
What do I do to combat this and what may have caused this problem ?
Any help would greatly be appreciated.......

-Corey
 

Last edited by cmays; Jun 13, 2006 at 10:16 PM.
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Old Jun 14, 2006 | 06:10 AM
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From: St Louis
You have a vacuum leak,

Check the PCV tube and it's elbows.

Check rest of the vacuum system...

Steve
 
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