new engine break in

[projectPONY]

you can have someone crank it over while you depress the shrader valve and at least see if there is some fuel supply.

So I DON'T need a press tester?

[shumpertdavid]

So I DON'T need a press tester?

The pressure tester is a good idea to ensure that you have the correct/adequate pressure, but as far as just making sure you have fuel getting up to the motor then you can just press the shrader valve while someone cranks the engine to see if you get a steady decent amount of fuel. 10 psi will put a fuel out but not start the motor, 35-45 psi will have push a large amount of fuel. Basically I'm saying you can't judge the pressure without the gauge only check that the pump is coming on. If you rent/borrow a gauge, grab a noid light set also. You plug it into an injector connector and it should blink/flash while cranking the motor over. This tells you that the computer is telling the injectors to open and close. This will be the next step to ensure the engine actually gets the fuel you are pumping to it.

Fuel Pressure/Volume, Spark, and Injector Pulse the 3 basic first tests to help diagnose a no-start problem.

[BigTitan21]

Did you get it going?

[projectPONY]

Did you get it going?

Nope, gave it up for today. Tired and frustrated with it. Will work on it tomorrow again.

[Txstang1]

Nope, gave it up for today. Tired and frustrated with it. Will work on it tomorrow again.

yup, sometimes that's what ya gotta do, clear your head.

[greenbullitt]

schrader should spray like an aerosol can if you dont have a fp tester

[projectPONY]

Well, my plan tomorrow, if I get to it will be to remove the fuel filter. 137k miles, I think its due. at that point I will cycle the fuel pump to find out if its working. I've been told that old gas can gum up.filter enough to stop it up. Any truth to this? This will also take the pump out of the equation, hopefully.

[projectPONY]

update

ok, didn't have time till today to get out there.

so at this point I have disconnected the fuel lines that lead up to the rails from the filter. I slid some piece of hose to the spouts of the filter and the other end of the hoses into a gas jug. I connected batt. and cycled the key several times, without cranking the engine, and I get no fuel spillage. at this time I think that at this point the pump should be pushing fuel up to the filter and out of the hoses into the jug. the thing is, I don't even here the pump when I get under the vehicle. is it safe to assume that pump is shot?

[FoxBodyNick]

I would say its not crazy to think that. =)

[projectPONY]

what about the fuel pump relay? how prone are they to go bad?

[projectPONY]

so am I correct in thinking that a good f/p should be pushing fuel out of the filter???

[turbos66coupe]

so am I correct in thinking that a good f/p should be pushing fuel out of the filter???

Umm logic would say this is true. Like said earlier just push the schrader valve and see if it sprays out. Did the truck sit for a year with no motor? Probably some nasty gas! Spray some carb cleaner in the throttle body and see if runs like that. It will tell you if everything else is good. I'm assuming you putback what ever you did to disable the fuel pump when You were trying to get OP.

Also the first startup will take what seems like a life time to build oil press.

[projectPONY]

just got done trying a new pump relay and still no luck. there will be no fuel press at the schrader valve since I have already removed the filter. the filter was a PITA so I'm not gonna replace it to simply test for fuel press at the schrader. I'm convinced that with the filter off and with the key on it should be gushing out fuel. I simply don't hear the pump prime at all.

the truck sat about a year with a seized up engine so it hasn't been started since. I'm guessing bad pump at this moment.

[TexasT]

Are you getting voltage at the pump. I'm guessing it is in the tank. Can you here anything when you turn the key to run, ie, relay click, pump buzzing? Bad pump is obvious but it might have a poor ground, corroded connector, does the place where the relay plugs in have power? A meter is handy to see. It doesn't have to be a hundred dollar fluke, one of the cheap harbor freight ones will read voltage.

[projectPONY]

I don't hear the pump make a sound. No clicking at the relay or anything. How would I.check for voltage at the relay?