Check the fuel pressure regulator (mushroom -shaped canister on the fuel rail) for any presence of fuel in the attached vacuum hose or on the nipple when ignition is ON. There should be none.

The other suspect is the fuel pump itself.

 

Check the for leaky injectors, faulty regulator, a faulty fuel pump check valve, or a leak in the fuel line somewhere. I dont think TBIs have a fuel rail..I think the regulator is between the injectors on the throttle body. iirc

 

well my injectors are ok but idk about the regulator and i know there are no leaks in the fuel line so i guess it might be the fpr ill chech tomarow to see it the gasket is old or has cracks in it thanks bowtie

 

TBI cars bleed down pressure as soon as the pump is turned off by design. As long as it holds pressure while the pump is running it's fine.

 

well it does just that how come the system doesnt hold the pressure in the lines like a normal fuel system? That just doesnt seem right. And Forbes I know its like that timing chain on your ford explorer. lol

 

What are your symptoms?

 

It has to be the timing chain.

 

Is your fuel system lack of pressure causing you any issues?