Check Engine Light
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Junior User
Joined: Apr 2008
Posts: 75
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Check Engine Light
Had a Check Engine Light on the other day. I borrowed a friends scanner and it read "Lean Bank 1". What does that mean?I cleared the code and it hasnt come back on.
1997 Epedition EB 4wd
5.4
109800 miles
1997 Epedition EB 4wd
5.4
109800 miles
Fleet Owner
Joined: Dec 2006
Posts: 20,637
Likes: 37
From: Lost in Pa.
Could also be an O2 sensor on bank 1, but yea check for the simple things first such as a vacuum leak as Modified pointed out, BTW a can of starting fluid works good for finding vacuum leaks, just spray at what may be a leak and if engine speeds up you found a vacuum leak. Good Luck
