Ford V-10 MPG getting worse, dirty MAF?
My 2004 Ford V-10 has MPG dropping since 2006. As my engine was getting broken in, you'd think the MPG would go up slightly, mine dropped. Not sure about the corelation, but that's about the time I changed from the paper air filter to the K&N. It did seem to have better air flow. I cleaned and re-oiled it once at around 20,000 miles as it look dirty. Then about 2010 when it had about 40,000 miles, I bought a new K&N air filter. Kept the K&N air filter in til last month.
After reading about the fact that oil from the K&N filter can make your MAF sensor dirty and cause engine performance to decline, I switched back to paper air filters. My MPG still is low on my last trip. So I read and watched videos on YouTube on how to clean the MAF sensor. I followed their example and bought the CDC MAF cleaner. It was very easy to disassemble the air intake and remove the sensor. It was very dirty, I am surprized there were no trouble codes indicated. Cleaning and reassembly were just as easy. Now I will just have to wait for my next trip in August to see if there is an increase in engine efficiency. I have been usinbg SeaFoam and injector cleaners on many occassion, but that didn't help.
For those of you wondering what my MPG was and is, originally, I was getting 10.0-10.3 when I first got it. It slowly dropped down to 9.5-9.8 on the same route to the Sierra Nevadas. I has continued to drop over the years and now I am getting 8.5-8.9. It's a smaller E-350.
After reading about the fact that oil from the K&N filter can make your MAF sensor dirty and cause engine performance to decline, I switched back to paper air filters. My MPG still is low on my last trip. So I read and watched videos on YouTube on how to clean the MAF sensor. I followed their example and bought the CDC MAF cleaner. It was very easy to disassemble the air intake and remove the sensor. It was very dirty, I am surprized there were no trouble codes indicated. Cleaning and reassembly were just as easy. Now I will just have to wait for my next trip in August to see if there is an increase in engine efficiency. I have been usinbg SeaFoam and injector cleaners on many occassion, but that didn't help.
For those of you wondering what my MPG was and is, originally, I was getting 10.0-10.3 when I first got it. It slowly dropped down to 9.5-9.8 on the same route to the Sierra Nevadas. I has continued to drop over the years and now I am getting 8.5-8.9. It's a smaller E-350.
