truck running bad

[justin949]

When i start to get into the 2400rpm to 3200 rpm the truck starts to stutter like its not getting any fuel i ordered new plugs and new wires and i am going to do a full tune up. How do you know if the injectors are bad or i have a bad fuel pump

thank you

 

[spooldup]

You can check your fuel pressure at the rail or get an in cab gauge. Doing a full tune up is definitly a starting point. How many miles since the last tune up? Make sure your throw on a conrad cap and rotor. You should have a walbro 255 pump in the tank to replace the stocker. The stock pump is not really good to start with. Do you have datamaster? If not get it. Your o2 sensor might play into this but i'm not sure where. One of the other guys can pick that up. O chnage your vacuum lines too while your at it.

 

[ed hess]

then again if you had a vac line off in the circuit for the fuel regulator it could do the same thing.

ed

 

[justin949]

i did the tune up, truck runs like a bat out of hell :evilbat: