when the car is cold there is no problem, but after it has ran a while when i shut it off and go to restart it the pump comes on but does not prime up the system. i have a fuel pressure guage and it only gets 20 psi. if i bump the key 1 or 2 times the pump turns back on and i get 42 psi and it starts no problem. i have change the filter and no change. p.s. the car is my 87 tpi 305,thank you for any help

 

Check the fuel pump relay.

 

i change the relay out with the maf sensor relay and still no change, could the pump be going bad, has anyone else had trouble like this. thanks for any help

 

This sounds like a textbook example of your fuel pump on its deathbed. I had the same problem in my 1989 GTA, changed it with a new only to find that the new one was bad also. If you have never seen the fuel tank on a thirdgen, be prepared for a good days work. They are a pain to get out.

 

yea a friend told me the same thing so i'm ordering a 255 lph from summit. my friend also has a car lift so hopfully that will help make it easier to take out, but you know these cars nothing is easy. thanks for the advice