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Depressurizing Fuel Line

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Old 12-06-2003 | 05:44 AM
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Depressurizing Fuel Line

Ok, So I was following the instructions given by the Haynes manual: Pull out the fuel pump fuse. Start car, wait for it to die. Repeat until it will not start anymore.

My car must be superman, because it kept starting. 15 times later, still starting. Waited 30 mins, came back. Started up... with a struggle, but still did. So I got impatient, and went to work anyways.

Result: I got gasoline sprayed in my eyes.

What was I doing wrong? Is there a better way to do it?
Old 12-06-2003 | 06:42 AM
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I'm also wondering about this because I have the same problem.
Old 12-06-2003 | 06:50 AM
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are u sure u pulled teh fuel pump; fuse? mine dies after the third start in less then a minute
Old 12-06-2003 | 06:55 AM
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I double-checked that and it's the right one. The car does stall after a while though, but I can always start it up again.
Old 12-06-2003 | 07:06 AM
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Fuel Filter: The filter is located against the fire wall near the brake fluid. There is no real easy way to remove the filter. It has a hose clamp at the top and bottom of the filter. The hose clamps are tightened with phillips head screws. The problem is Nissan did not leave alot of room to get a screwdriver in there inorder to remove the filter. If you want to attempt to change the filter here are a few tips. Leave the car running. You will need to remove the fuel pump fuse. The fuse panel is under the steering wheel on the left. Locate the fuel pump fuse and remove it. In about 5-10 seconds the car will stall. Try to start the car at least one more time. This releases the pressure in the fuel line. Turn the car off completely. Now try and remove the top and bottom hose on the filter. When reinstalling the filter make sure that you don't install upside down. When new filter is installed put the fuse back in and start the car.


did u use those directions or these: http://vbxmaxima.8m.com/fuelfilter.html ?
Old 12-06-2003 | 10:39 AM
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Too much hassle to do the Haynes way. In both Maxima and Pathfinder all I did was unscrew the gas cap and that releases the pressure. You won't get sprayed this way.
Old 12-06-2003 | 11:04 AM
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Originally Posted by Armelius
Too much hassle to do the Haynes way. In both Maxima and Pathfinder all I did was unscrew the gas cap and that releases the pressure. You won't get sprayed this way.
I dont see how this works since the pressure build up is after the pump.
Old 12-14-2003 | 10:18 AM
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a little will come out maybe a pencil size amount but once it does you can plug it with a golf tee or something, easy job
Old 12-14-2003 | 12:14 PM
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to have clear access to change the fuel filter, it is worth the 10 extra minutes to remove the air intake bellow. Disconnect a few hoses, the MAF connector, and voila you have plenty of room to make the fuel filter change a piece of cake.
Old 12-14-2003 | 01:28 PM
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Ok he wasn't asking how to change the fuel pump. He was wondering why the line was still pressurized enough to squirt him in the eyes. Let's stay on-topic people. To the original poster, how full was your gas tank?? If it's pretty full, there will still be a significant flow of fuel, even if it isn't pressurized.
Old 12-14-2003 | 01:46 PM
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Originally Posted by gabex
Ok, So I was following the instructions given by the Haynes manual: Pull out the fuel pump fuse. Start car, wait for it to die. Repeat until it will not start anymore.

My car must be superman, because it kept starting. 15 times later, still starting. Waited 30 mins, came back. Started up... with a struggle, but still did. So I got impatient, and went to work anyways.

Result: I got gasoline sprayed in my eyes.

What was I doing wrong? Is there a better way to do it?
Don't pull the fuse, don't turn the car over until it won't start, just unscrew the gas cap until the pressure is relieved, then take off the crap you need to get to the fuel filter and replace it. Use a rag and find something to plug the hose when you get it off the (top first) fuel filter.
Old 12-14-2003 | 02:15 PM
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I had 1/8 of a tank of gas. I wasn't even trying to change the fuel filter.. I was changing a fuel injector. Before this, my car had sat most of the day, then I pulled the fuse. =/
Old 12-14-2003 | 02:35 PM
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Originally Posted by gabex
I had 1/8 of a tank of gas. I wasn't even trying to change the fuel filter.. I was changing a fuel injector. Before this, my car had sat most of the day, then I pulled the fuse. =/

Hard to find you was changing the fuel injector. Why did you need to change it? Didn't you try to clean it first?
Old 12-14-2003 | 03:44 PM
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As stated before:
1. pull the fuel pump fuse
2. remove gas cap to release 'any' pressure
3. crank car til it dies, and yes it will be able to turn over several more times but you reduce this number by releasing the fuel pressure in the tank.
Old 12-14-2003 | 03:58 PM
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Originally Posted by Armelius
Hard to find you was changing the fuel injector. Why did you need to change it? Didn't you try to clean it first?
Hard to find? My car was misfiring, Diagnosed it was a bad fuel injector after testing it with a multimeter. Cleaning it would not have helped.
Old 12-14-2003 | 07:30 PM
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how many miles on your car? You think it's from one of those gas stations in Indy?
Old 12-15-2003 | 06:12 AM
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106k. I have only gotten "bad" gas one time. I usually use 92 octane, but last fill up was 93. I am going to test everything with a multimeter, make sure nothing else is bad.. then run some injector cleaner.
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