What's the best way to relieve the fuel pressure when your changing the fuel filter. I tried disconnecting the fuel pump under the back seat and left the car running, but it never died b/c of lack of fuel though.. I left it running for awhile too.. Does anybody know some kind of time estimate to when the car dies b/c of lack of fuel? TIA

Joe Gonzalez
On Galveston (flooded) Island

you did it the right way if you disconected the harness going to the fuel pump. Chances are you just didn't let it go enough. disconect the fuel pump harness, start the vehicle up, and let it run until it dies.

This should do the trick.

or u cud just loosen the bolt on the filter, and let a lil gas spill out....

your call... u can releive the pressure from a valve on the fuel rail as well...

I'd just do what vegasdsmr said. Just unbolt the filter and deal with a little fuel spill. If your real picky about it put an oil pan or something under it.

Thanks guys, I appreciate the advice. I think I'll just spill a little of the gas f... it.

Joe Gonzalez

no,the proper way to relieve the fuel pressure according to the mitsubishi repair manual is to disconnect the fuel pump relay in the engine bay by the brake fluid container on the left, and start your car and let it idle till it dies out, and whuallah no fuel pressure. there will be just about a tiny but of gas that comes out but nothing big and messy.

If you do not relieve the fuel pressure, you will have a HUGE fuel spill. Don't ask how I know, I just do. :P I don't think that they have yet forgiven me at work for messing up the parking lot. Gasoline does a real number on pavement. So yes, relieve the pressure as best as you can. A lot of people unplug the wrong harness, and disconnect their fuel gauge, which will cause your car to not die. Make sure you have the right harness.
-=B-=