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Trouble Code

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Old Dec 1, 2006 | 10:29 AM
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Bu||Dog(CA)'s Avatar
Bu||Dog(CA)
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Trouble Code

I have a 2000 Ford Ranger. 4.0 V6 XLT. I get the following codes when I scan the vehicle. P0171 (Left Bank Lean), Then sometimes P0174(Right Bank Lean). I gave it a full tune up (Plugs, wires, fuel filter, PVC valve and Air Filter). The Check engine light would still come on about once a week (Only when the engine is cold). So I put new O2 Sensors in (All Three, thinking they might be telling the PCM that the truck was warmed up premature), and now the light comes on every day. Any suggestions.

Thanks,

Ralph.................................
 
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Old Dec 1, 2006 | 12:12 PM
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PSKSAM2
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From: Morris Plains, NJ
Check this thread for some links to threads that describe the common issues with these codes. Usually turns out to be a vacuum leak or fuel delivery issue. Pretty common on the 4.0's.

Cold Weather Related Issues Informational Thread

-Jim
 
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