4g15 problems

[mikeylighter]

so i have a 91 colt with a 4g15 in it, got it with a bad fuel pump, i replaced the pump, started up fine with the tank down within a few cranks, so I put the tank back up and the fuel pump stopped priming, and car wont start. Im baffled at this point. I disconnected the fuel line from the filter to see if it was getting fuel and nothing was coming out. so i dropped the tank, disconnected the line right after the tank, and gas will spray out after it cranks for roughly 4-5 seconds. The fuel pump doesn't prime when I turn the key like it used to (or at least i am assuming it did since it was starting within the first few cranks before). I am thinking maybe the fp relay is shot, the car sat for 3 years so i dont know if that would make relays become stuck. The car has new fuel pump, strainer, and fuel filter also.

 

[gofast63]

so i have a 91 colt with a 4g15 in it, got it with a bad fuel pump, i replaced the pump, started up fine with the tank down within a few cranks, so I put the tank back up and the fuel pump stopped priming, and car wont start. Im baffled at this point. I disconnected the fuel line from the filter to see if it was getting fuel and nothing was coming out. so i dropped the tank, disconnected the line right after the tank, and gas will spray out after it cranks for roughly 4-5 seconds. The fuel pump doesn't prime when I turn the key like it used to (or at least i am assuming it did since it was starting within the first few cranks before). I am thinking maybe the fp relay is shot, the car sat for 3 years so i dont know if that would make relays become stuck. The car has new fuel pump, strainer, and fuel filter also.

How old is the gas?

 

[DSM1G90]

Car sat for that long, I bet the oil is almost all gelled up as well and full of sludge.

I'd get the tank drained and flushed in as well as the crankcase drained and filled with a 50/50 mix of 30w dino oil and atf fluid to clean out the galleys with the motor idling for 20 mins, then do the oil change pronto.

 

[i3oi3c78]

You should check to see if you pinched a fuel line, putting the tank back up.

 

[CoachDavis]

Did you ever figure this out Mikeylighter? I now have the same exact issue!