I am an independant repair facility and a customer of mine went to the dealer when I was closed for Christmas. Long story short the dealer installed a high pressure pump and filters. Called the customer and said it still does not start and needs the complete fuel system due to contaminated fuel. Well the customer waited for me to return and after checking the truck it does have contaminated fuel. BUT heres the interesting twist, When I removed the tank the contaminated fuel was only in the sending unit cup and not in the fuel tank itself. The fluid in the sending unit looks like burnt tranny fluid and the fuel in the tank looks perfect. Now when the customer was informed of contaminated fuel was informed it was introduced through the filler neck at the station or prank. No one brought up the possibility of the truck possibly causing this concern. P2291 and will not build high pressure and still does not start. Now it seems to me like a cop out to just say you have to replace "everything" inorder to fix it and no one tries to figure out what happened. This truck is 2011 f250 4x4 6.7 and I have just purchased a 2013 f250 4x4 6.7 also. Has anyone had experience with an issue like this, this truck has over 100k and is a work truck. I have maintained it here and know it well. As far as the components checked, fuel pressure sensor, volume control valve, and fuel pressure solenoid, all when removed were clean and no signs of debri or contamination. I have a contact at another dealer and was told it was rust causing the color, rust would involve water? right. None found in the tank nor the separator. If there is a single component that could have caused this, this customer has 7 other of these trucks and would like to replace the part/s before it caused such a catastrophic failure.

 

http://www.dieselsite.com/dieselsite...separator.aspx

This the only prefilter that I have seen for the 6.7.

I have no idea why the fuel in the take looks good and the fuel bow looks that bad. I wish I had the answer. The ford repair for the fuel system VERY expensive.

There are a couple of treads on here about fuel contamination. Were the filter changed often? Where does the truck get its fuel from, and where is the truck location? Did the fuel bow get drained monthly? What did the fuel bowl look like at the last service?

 

Complete flush of the system from head to toe. New fuel filters (both). Clean the tank.

New injectors and fuel lines leading to the injectors.

Clear and codes, prime and restart. Insurance claim.

 

I understand the repair, I have all the parts coming for it including the fuel rails and each of the lines. Complete fuel system replacement. My concern was, what is it and what can I do to help prevent this from happening to me, I not fully convinced the contamination came from an outside source.

Thanks for the prefilter tip.

As far as this guys insurance it is not covered unless it is an act of vandelism. If bad fuel was received from station they said go to them. And well if the truck produced it...

 

Only thing you can really do it to drain your fuel/water separator montly or more if needed. WIF light will not help so do not depend upon it.

I have drained daily sometimes. It may take that if you are suspicious.

change the fuel filters on a regular basis..don't wait for it to tell you but rather around 10K is what I would recommend myself.

Buy your fuel at large truck stops that have alot of volume. Stay away from the pumps if they are getting a fresh batch.

About all you can do.

When on the road I try to fillup at pilot/fly J mostly.

 

My thought is something upstream of the sending unit is causing this, turning the fuel red, and sending it back to the tank via the return line which dumps it into the sending unit, keeping mostof the ccontaminants in the sender. Are there metal shavings present?