6.4 Diesel High Fuel Rail Pressure
#1
6.4 Diesel High Fuel Rail Pressure
Everything I've read about this problem is bad and costly.. I have a 2008 model F250 with the 6.4 diesel. I got this code just before my last fuel filter change about 10,000 mile back.. I also started getting the repeated Water in Fuel, Drain Seperator. I did this over and over nothing I done helped. Called the dealer and he said it would need to be taken apart and cleaned. Just before a trip I changed my fuel filters and again the engine light came on, same code High fuel rail pressure. Of course not only did I have the code but I did not tighten the bottom filter properly and the truck sucked air and shut down.. Got it to the dealer and straightend out the filter cleared the codes and started the 320 mile treck. 100 miles into everthing the code came back and of course like the other times the truck went into a lose of power mode. It seemed to die around 2200-2500 rpm's. We made it back and the truck seems okat except for the code. I checked the engine oil and it seems normal. I did notice the truck used about 3 miles per gallon more instead of 18mpg it was more like 15.. Anyones thoughts!
#3
Everything I've read about this problem is bad and costly.. I have a 2008 model F250 with the 6.4 diesel. I got this code just before my last fuel filter change about 10,000 mile back.. I also started getting the repeated Water in Fuel, Drain Seperator. I did this over and over nothing I done helped. Called the dealer and he said it would need to be taken apart and cleaned. Just before a trip I changed my fuel filters and again the engine light came on, same code High fuel rail pressure. Of course not only did I have the code but I did not tighten the bottom filter properly and the truck sucked air and shut down.. Got it to the dealer and straightend out the filter cleared the codes and started the 320 mile treck. 100 miles into everthing the code came back and of course like the other times the truck went into a lose of power mode. It seemed to die around 2200-2500 rpm's. We made it back and the truck seems okat except for the code. I checked the engine oil and it seems normal. I did notice the truck used about 3 miles per gallon more instead of 18mpg it was more like 15.. Anyones thoughts!
Sorry to hear about the problem, this is likely an expensive fix. Are you still under your 100,000 mile engine warranty? I sure hope so...
Short of the obvious like a bad pressure sensor the culprit is likely your high pressure fuel pump or one of the control valves mounted to it. These aren't serviceable independently, and therefore you will likely need a new HPFP. This is not a cheap repair...
I'd say get it to a competent dealer ASAP.
#4
#5
Unfortunatley the truck is nolonger under warranty, it has about 132,000 miles. I work at a body shop and removing the cab shouldn't be a problem. Is removing the HPFP a job or can a shad Tree do this? Also in talking with some other large truck Machanics they asked was the pump rebuildable? Good question. I've shut the truck down and it's sitting currently. Fortunatley I have a beater I can drive. I've also heard that you have to take the injectors and fuel lines loose and look for metal shavings. Is this the case?
Thanks,
Broke and Hurting
Thanks,
Broke and Hurting
#6
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