naturalbornmudder
10-16-2009, 08:03 PM
This all started with a no-start diagnosis with The Bronze. My 99 TJ wouldn't stay running once it fired up. Then after a few tries, it would not even fire at all. We checked the fuses and found that the 25A fuel pump fuze(supposed to be 20A so someone put a heavier fuze in) was popped. So I did a quick check by swapping similar relays to make sure that the relay was also not burnt. The relay was good and the fuze was bad, so I swapped in a new fuse and it fired right up. At this point, I am ready to claim victory when Kelly says "you know you are still going to have to replace the fuel pump, right?" Well, in fact I did not know that, however Kelly quickly explained to me the reason the fuze kept popping is because there is too much resistance on the fuel pump mechanism which makes it draw more power to work, therefore popping the 20A and eventually the 25A fuze.
I picked up a fuel pump and decided to leave the remaining module and gas guage float intact. I started to drop the fuel pump which also entailed taking the filler hose and gas cap neck off, dropping the nuts that keep the tank in place, and lower it slowly onto the deck. Here is where the trouble comes in. The pressurized line is held on by a special captive fuel line mechanism. See below:
What fitting is this?
http://www.frozenaxles.com/gallery/data/500/medium/IMG00075-20091016-1957-1.jpg
So first I needed to relieve the pressure from the fuel system by depressing the Schrader valve under the hood on the fuel rail. Next was a quick run to the parts store for a multi-pack fuel line quick release tool. Use the tool to pull the blue tabs away from the line, press in on the fuel line to get it to release from the fuel pump module. Then I dropped the tank.
I picked up a fuel pump and decided to leave the remaining module and gas guage float intact. I started to drop the fuel pump which also entailed taking the filler hose and gas cap neck off, dropping the nuts that keep the tank in place, and lower it slowly onto the deck. Here is where the trouble comes in. The pressurized line is held on by a special captive fuel line mechanism. See below:
What fitting is this?
http://www.frozenaxles.com/gallery/data/500/medium/IMG00075-20091016-1957-1.jpg
So first I needed to relieve the pressure from the fuel system by depressing the Schrader valve under the hood on the fuel rail. Next was a quick run to the parts store for a multi-pack fuel line quick release tool. Use the tool to pull the blue tabs away from the line, press in on the fuel line to get it to release from the fuel pump module. Then I dropped the tank.