Changing my fuel filter...

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ray240sx
Posts: 29
Joined: Fri Feb 13, 2004 12:17 pm

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What precaution should I take before I remove my fuel filter, I learned that i have to perform " fuel pressure release" in "work support" mode to release pressure to zero. Can someone explain to me what this means, and how i shouldperform this?

Or is there a simpler way of changing my filter?? thanks for your help!!


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Soy
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Car: '03 Mazdaspeed Protege #295

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easy way - take off your gas cap, remove the under-hood fuel pump fuse, and run the car till it dies. Then you can replace the filter with a minimal loss of fuel, put the new one in, plug in the fuse, and fire the car back up.

James

Nathan
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Do not touch anything, turn key to "on", remove fuel filter quickly while smoking a cigarette, report back if possible. In all seriousness though, pull the fuel pump fuse and just let the car run until it dies, I've never bothered removing the gas cap but I dont really care about minor fuel leaks...they dry quickly anyway :)

ray240sx
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James,

Great!! now that is a whole lot easier to understand, thanks bro!!

ray240sx
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Nathan,

Haha, great sense of humor... thanks guys now i can go ahead and put in the new (HUGE) 300zx filter!

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Dano
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yeah, the Z filter snaps right in, i just take off the gas cap and swap it, a lil spilt fuel doesnt hurt anything. I just keep a towel under it.

-Dan

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bcar240
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Car: 1993 240SX HB

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Last time I swapped mine I just used lock pliers to loosely hold the hose ends vertical while I changed it and I barely had any spillage. My neighbor scared the s*it out of me, cause he started a pile of sticks on fire just as I started the car for the first time, but I didn't know and all of a sudden there is smoke everywhere.

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BadMojo
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Car: 2007 Mazdaspeed 3

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jjg25 wrote:easy way - take off your gas cap, remove the under-hood fuel pump fuse, and run the car till it dies.


I usually crank it a few more times after it dies just to be sure, but I'm kinda funny that way. :pface

driftaholic
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lmao @ bcar

when you first starte the car after you change the filter, it won't start smooth. duh, you ran it out of gas. just wait a second and it starts fine

Altiman94
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^ thank you captain obvious

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bcar240
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I got the car started ok. It was just that after I started it I looked up and there was all this smoke around the car from his bonfire. I thought something in the car had caught on fire.

ray240sx
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lol... i see everyone has a great sense of humor here!! thanks for the tips fellas!! I havent had time to change it yet, hopefully I can get to it by this weekend.

RL

entity
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Joined: Tue Dec 09, 2003 9:24 pm

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lol@bcar

Ray - The hoses on my 97 where impossible to take off. I read on here you could try holding the old filter while twisting the hose to loosen it, but nothing would work. I ended up taking it in, and they said they had some sorta special compression tool to remove it. Well it took them an hour to get it off, the mechanic said it was a huge pain in the *** lol. Something to look out for.

My car smelled like gas for like an hour after the filter was changed..I was afraid my engine was soaked in gas and was gonna spontaneously combust. I'd be in bcar's situation then.

S13240
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Easiest way to get hoses off is to just cut them up and replace with new ones :D

driftaholic
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that's what i did. took about a minute .price of new hoses < what my hour is worth

ray240sx
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well... I finally got to changed the fuel filter... it was a fairly easy job...easier than I thought!! ofcourse with some helpful advices from this thread! once again thanks...

Yea i know what you mean entity... I had some trouble gettin the top hose off...i had to jerk side to side for awhile before the fuel had seeped in... then it just slipped off easily. Bottom hose came off easily. Guess i got lucky and saved myself from cuttin & gettin new hoses!

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karay240
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Location: West Covina, CA

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what's the impression of the mod now you did it? From what I understand, there is an increase in throttle response, but I wanted to hear it from you guys before I did something unnecesary.

I have a stock KA24DE, and I'm keeping it that way 'cause there's a chance I may end up in the lovely restrictive state of CA in a couple months. lol.

180fan
Posts: 7799
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Car: 89 fastback

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for me the 300zx filter added more top end when I'm giving it alot of gas. that was bout it.

entity
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Didn't notice much of a power increase, but my fuel economy did go up about 2MPG.

ZULU
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Joined: Tue Oct 28, 2003 7:07 pm

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I actually changed my fuel filter today. Replaced it with a 300ZX OEM filter. Those hoses are a PAIN IN THE you know what to get off. THe top one was the worst the bottom one was easy as I just rotated the fuel filter while pulling. I just spread out the stock bracket as well.

I removed my gas cap , pulled out the fuel pump fuse and ran it till it died. Put two clothes under the fuel filter to soak up and spills. Pretty simple job thats worth doing.

OH and I changed my oil to Mobil 1 15W50 and replaced the oil filter with a OEM filter.

ray240sx
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Joined: Fri Feb 13, 2004 12:17 pm

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I do notice some throttle response and increase in MPG as well...added about 13 miles more than the usual total. Even though i still get horrible miles to full tank (200 miles). so over-all a highly reccomended install.

RL

cory2081
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ray240sx wrote:I do notice some throttle response and increase in MPG as well...added about 13 miles more than the usual total. Even though i still get horrible miles to full tank (200 miles). so over-all a highly reccomended install.

RL


Woah, that is bad!! I hope you have alot of mods, My GN's mileage wasnt that bad!! My S14 gets over 400 miles to a full tank!!

entity
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Around 300-310 for mine after the new fuel filter. Before it was around 275-300.

nissanrcer240
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I have the 300zx filter, I just have to put it on, where is the fuel pump fuse located at exactly??

180fan
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Car: 89 fastback

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it's in next to the battery in the fuse box. look at the lid and you'll see a mark for the fuel pump


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