Yes I tried switching tanks to see if it helped.

Could it be the pressure valve located on my injector rail under the hood?

Hanky thank you for your time, your a big help

 

You are welcome sir!
It would seem then that you have the same problem no matter which tank you are pulling fuel from. In that case we would look for what is common to both tanks.
Among the possible causes,
1. Loss of RPM signal and that causes the fuel pump relay to drop out
2. The EEC relay powers the computer and the fuel pump relay
3. The fuel pump relay itself
4. The ECM (computer)
5. Poor connection either supplying the power or ground for the system to operate correctly.
The best way to confirm if the fuel pressure regulator is acting up is to get a fuel pressure gauge and connect it to the fuel rail and look at the pressure when it won't start. Many auto supply stores will rent one to you to do that check.

 

Hi Hanky,

I have bought a new pressure valve but it look very difficult to change I will have to pull my injector rail to remove it.

I put non ethanol fuel in, just after my truck started clunking just down the street from the station

 

Could you have bought a load of water ?

 

Did you by any chance put Diesel fuel in by mistake? If the nozzle on the hose was Green, that was Diesel fuel.

 

No not diesel, I put $100.00 worth at every fill up, it could have had water in it, that is what I was thinking.

do you of any why to clean it with out pulling the tanks

 

What I would do is to remove the fuel filter and drain whatever is in it out into a clean container and see just what comes out. You should drain it in the opposite direction of normal flow and if there is water or anything else in there , it will usually come out. It would be best to replace it once you have it off, but if you don't have a replacement you can reinstall it as long as it isn't clogged. Please remember to either pull the fuel pump fuse or rap the inertia switch and relieve the pressure in the fuel system by trying to start it so you don't get a fuel bath. If you use the inertia switch method don't forget to reset it when done or the fuel pumps won't work, OK?

 

Thats is what I am going to do.
I ran the fuel empty in my front tank, then added $20.00 worth of regular fuel. Be hold my truck stopped clunking. Just wondering adding higher octane fuel could have been the culprit.

 

It seems you solved your problem. Let's hope that's all it was !

 

Your the best Hanky
thanks for sticking around for me