Hard starting 84 hot air

[tim sewald]

Hello All,

Needing help with diagnosing my hard to start 84 T-type. Since this hard starting has begun, I noticed the fuel pump does not kick on when I hit the key as it usually does. I checked pressure and with the key on it shows no pressure but running it's about 30psi. Thinking the fuel pump was bad, I put in a new AC Delco pump and sock. Same problem. Replaced fuel relay. Same problem. Are there any other factors in the equation? Any thoughts?

Thanks
Tim

 

[buddy]

I would guess the fuel pump relay. Are you sure you replaced the right relay?

 

[tim sewald]

Hi Buddy,
My car has two relays on the passenger side inner fender. AC and Fuel. I replaced the one closest to the front of the car which should be the fuel relay from the research I did online. The new one could be bad. One other thing, I just tried hitting the key and turning it over a few times and repeated about five times. On the last time I heard the fuel pump kick on and it started right up. Is there any other possible culprit in the equation? Fuel pump, fuel relay, fuse? Thanks for your reply.
Tim

 

[buddy]

If your fuel pump only primed how it was supposed to after a couple key on. I'd say maybe you have a loose wire somewhere or the fuel pump relay is acting up or shot. I believe if the relay is bad, the ecu will wait for 8 pound oil pressure before fuel pump kicks on. That's why delayed start.

 

[tim sewald]

Sounds plausible...thanks! I'll take another look at the relay and possible wiring troubles.