My fuel system and I have been battling each other for the past couple of years. I have changed my cp3, replaced my stock lift pump with a raptor rp-150 and, fan clutch and up until last week 1 fuel injector. The beginning of this week my truck would not start. I had enough and finally just ordered 5 bosch reman injectors and replaced them. The truck started no problem. It has run fine for 3 days now, starting almost immediately after turning the key. I checked my codes yesterday and its throwing p0251 and p0480. From what I can gather people are saying that replacing the FCA would solve the trouble code p0251 and the fan clutch for p0480. I don't know what the problem could be since all of those components have been replaced within the past 1-1/2 years.

 

Did you use OEM or aftermarket parts?

 

The lift pump is a raptor rp150, the injectors are all oem bosch, the fan clutch was purchased from NAPA, the cp3 was oem.

On a side note, I did unplug the FCA when I was troubleshooting the no start to see if that was the problem. Don't know if that could possibly cause the p0251.

 

Clear the codes and see which ones return.....we can go from there.

 

OK, I cleared the codes. Neither the P0251 or the P0480 have reappeared. Now I have P0483 which appears to be fan speed.

 

Sounds like the fan clutch is going to be the no start culprit. There's a video on youtube where it's talked about.

 

Actually the injectors solved my no start issue. I now am getting the fan clutch code which I already replaced just over a year ago. Which is what has me stumped.

 

How do you clear the codes?

 

Get a code reader or go to an auto parts store and have them clear them for you.