Question about 2002 Ford F150 Regular Cab
My 4.6 engine is getting 2 codes which tell me lean mixture on both engine banks. I changed the fuel filter and cleared the codes. They came back and the engine is still running very rough. Any ideas? Thanks.
What are the codes?
The codes you get,do not tell you what is wrong, or what to replace.
The fuel filter has no role here,unless completely clogged
You need to diagnose the cause,of the codes and symptoms your experiencing
You may have a valve cover,leaking oil onto a spark plug,or a bad coil,thus a misfire and O2 codes, as well as other codes, that will drive you crazy and in the end ,
just go away.
Make sure the ducting from Air Filter to the Throttle Body is in place and no vacuum leaks
You could clean the MAF Sensor --with CRC MAF Cleaner
Let me know what help you need, just too may things I could talk about
Posted on May 07, 2010
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Does your vehicle have any aftermarket filters or air box, the computers in new vehicles are designed to run on whats provided by the factory,if you have a k n filter your mass airflow sensor is probably plugged by the oil in the filter
Posted on May 27, 2010
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Posted on Jan 02, 2017
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