Well I left from my house just put a new FCA valve in had a 1/4 tank of fuel truck ran fine. Went got my truck inspected then went to fill it up were I have for years at Valero never had a problem with there fuel they have a high volumn of fuel run through this station. I fill it up 22 gallons start truck and fuel gauge reads empty its done this one time before no big deal get home turn it off and then back on usually fuel gauge will jump right back up.No go this time. Get up this morning go to crank it it fires up then it is rattling big time shut it off try it again does same thing. I then proceed to pull codes first one was P0463 then P0462 then P0088. I then drain fuel out of filter housing it looked like a combination of Mountain Dew color and Milk(CLOUDY) to me. I look at the jug its got about 3 ounces of water in the bottom of the clear 2 Qt. jug.
My question will this throw these codes. Also no WIF light came on at all.

Any help on this will be much appreciated. Do I need to drain this whole tank of fuel ? Could i possible make the fuel station pay for this. I also just put in new Injectors at a cost of about $2800 I know i will change the fuel filter for sure. Sorry for the long post but I wanted ya'll to know whats going on and seek some help here.

Thanks Mitch (AKA) Sittingbull2 because I'm in a wheelchair

 

That's some nasty looking stuff for sure. Try to find a fuel additive that will emulsify the water and maybe the water separator can pull it out. Other than that, change the filter often until the fuel is gone, or drain the tank. Very doubtful the station will pay for it. I've never had good luck with the Valero station here by me.....lot's of water in the fuel the times I've purchased there.

The water is very detrimental to the injectors.....no bueno for sure!!!

 

p0088 is fuel rail pressure too high
p0462/p0463 is fuel level sensor 1 low/high (respectively)

 

Did you get a receipt? If so I would at least try to get a refund on the fuel. Show them your samples.
Then I would go drain it completely! I would not try to run anything else in there. Change the filter like you said and then even run about a quart of 2 stroke oil with the fresh fuel.

 

(Did you get a receipt?)

Yes sir I did I just got back from that store and they just gave me the 800 number to call. Boy I sure hope it ain't hurt those brand new Injectors I just had put in. I drove maybe 8 miles and its parked right now going to start draining fuel out of it. Thanks ya'll

 

If the rail Pressure sensor went out that will cause it to throw a code of
P0088 correct ? I took it out and cleaned it also put it back in and still injectors are rattling. If you shake it would it make a noise or anything or is it like a regular sensor just monitoring pressure? Also if I bought a new one would it make the injectors quit rattling or is it something else? I did put a new FCA in and new injectors recently and it ran great. Until I filled up. I also drained about a gallon of fuel out this morning and the water is just about gone now. Changed fuel filter also. But when you crank it up injectors are still rattling. Whats next to get this truck up and going?

 

A RP sensor is about 225 bucks but it's worth a chance. When I had some issues with my '03 several years back the shop was trying to diagnose the problem. They were thinking RP sensor....unplugged it, started truck, and sounded just like the old 24v VP trucks.....Heck, I actually liked it . Too bad the sound went away when they cleared the code and plugged it back in. Turned out my FCA was crap.....but you've recently replaced that. Like I said, the water may have damaged the RP sensor, and a new one could be needed.

 

jhenson thanks so much.

I just put a new rail pressure sensor in about 3 min. ago did not do anything for it. i even put some Lucas in the filter housing before I cranked it up still rattling real bad. Suppose that FCA already went bad because of the fuel?
Seems like I read somewhere that it could be ECU related. I am at a lost I'm trying everything possible before i take it in or more like have it hauled in to a Diesel shop.

Thanks,

Mitch

 

Since all of this started at the last fill up it almost has to be a fuel system issue.....stix are new....doubtful thats your problem.....RP sensor didn't fix it.....the only thing left is the FCA.

Do you have a RP guage in the truck? If so, unplug the FCA and start the truck for a couple of seconds....RP should spike....if it does then the FCA can almost be ruled out. When I had my issues years back when it turned out my FCA was bad....only at idle would it do this, it would lose rpm's, rattle like hell, shake violently, then race up......all on it's own!!!! So, yes, the FCA could be causing the noise you hear. Hate that you're throwing parts at it with no luck, but that may still be cheaper than a shop diagnosing it for you.

 

jhenson,
No RP gauge in truck. I know the FCA is like only 2 days old (Brand New) maybe it went out already. Kinda sucks with this going on. Like I said in previous post new FCA in it and it ran like brand new w/ 1/4 tank of fuel then this happened like overnight after fill up while I was asleep. Truck is possesed LOL it don't want to be driven. I think I'm gonna drain all the fuel out and drop tank an rinse fuel tank with new diesel drain and blow out fuel system lines go buy another FCA valve $125 and try that. Unless you know or anybody else knows something else to try. Then threaten it after that with a B. F. Hammer.

 

This sounds like the best bet right now.
I hate problems like this that just start out of nowhere. Is it related to the bad fuel or just coincidence??

Good luck and keep us posted on what the outcome is.

 

I'll keep ya'll posted for sure Rockcrawler.

Thanks ya'll

 

Well drained the fuel tank and dropped it out of the truck not to bad of a job. My thing is before I put it back in I had codes of P0462 & P0463 is that the fuel sending unit in the tank? How do you test the sending unit or do you have to buy a whole new unit? The white cylinder with the sending unit on the side. I will had some tubing to the barb fittings on top of the tank for sure to keep trash and water from going in it was some kinda nasty around those barbed fittings. I have attached Pics. of tank and sending unit module.

 

I'm not sure how to test the sending unit other than hooking up a volt/ohm meter and as you raise the float you should see the ohms resistance increase. Just not sure what values are good or bad.

On a side note... this is the perfect time to do the tank vent mod!!

 

Thanks, rockcrawler I need to search this up for the tank vent mod. Is it pretty easy to do?