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Old 12-17-2010, 04:18 PM
caryrae73 caryrae73 is offline
Learning to use the forums
Join Date: Dec 2010
Posts: 8
Default Re: If you have an 01+ 4.0 with lean codes (PO171 and/or PO174) look here!

I have a 2001 Ranger 4.0 and had the 2 codes and just went out and looked and yup the elbow has a big gash in it. Now just have to go out and get a piece of hose to fix it. Will this possibly help with the rough idle I have? It seems to be fine when driving any speed just when idling it will idle rough and sometimes even stall and the engine will shake a little. Seems to be worse after the engine as warmed up.
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