1998 C1500 Fuel Issues

[speedygonzales]

Originally Posted by 95chev-w/t-guy

If I check the pressure anywhere in the system with a pressure guage it only goes to 25 psi and holds.

Originally Posted by 95 S_Trucker

If there was a leak with the injector/FPR, it would not hold pressure over time. We can rule those out.

You read "and holds" as in when the engine shuts off.

I read it as "as long as it's running".

Big difference. He never said if it holds after shut down.

And if the ground were bad, as you mentioned, it causes a load. With the same amount of current trying to go through the corrosion, it would cause heat. The connection would quickly disappear from melting if it were causing the pump to only come up to 25PSI.

We will see when he checks the grounds and it doesn't change. But since he just bought the truck, he has no history on it. Likely it sat for a long time and the FPR diaphragm dried out.

Now if he tests the pressure AFTER shut down, that is a different story. But that is only part of the story since the check ball in the tank is probably bad and allows the pressure to bleed off. Again likely since it more than likely, sat for a long time.