Fuel filter replacement

Leedeth · Post by **Leedeth** » November 4th, 2007, 3:42 am

I'm using this and the workshop manual as a guide: http://www.standardshift.com/forum/view ... 068#110068 and I have a few questions.

I heard somewhere that nobody ever checks or changes the fuel filter, even shops. How long can a fuel filter last?

Are there any high flow fuel filters, and do they affect performance with stock injectors? Should I just get a stock filter?

The workshop manual says there's a low-pressure side and a high-pressure side. I'm confused, what is this? Which one should I replace?

Thanks.

Tropical Emerald 1993 · November 4th, 2007, 8:43 am

I've replaced mine (high pressure one in the engine bay) just after 150000km, it was very dirty but didn't notice problems with the old one.

Get the stock replacement one and make sure you have a proper body position so you can work with both hands if you're working from top of the engine.

95 rs · Post by **95 rs** » November 4th, 2007, 2:26 pm

they should be replaced about every 40 000 - 50 000 kms.

rekognize · Post by **rekognize** » November 4th, 2007, 6:38 pm

Where can I find the fuel filter?

Leedeth · Post by **Leedeth** » November 4th, 2007, 7:38 pm

Ok I got this far trying to figure out how to get to the low-pressure side. What do I do next?

Sorry about being unfocused...my camera wouldn't even let me take a pic on auto in the car for some reason...I had to force it on manual.

shameem · Post by **shameem** » November 4th, 2007, 10:18 pm

http://www.mx-3.com/manuals/index.php

95 rs · Post by **95 rs** » November 4th, 2007, 10:57 pm

i thought the fuel filter was on the driverside firewall in the engine compartment........

not at the pump

teribble · Post by **teribble** » November 4th, 2007, 11:35 pm

95 rs wrote:i thought the fuel filter was on the driverside firewall in the engine compartment........

not at the pump

There is one there but i think they have two Filters not sure on the second one.

rekognize · Post by **rekognize** » November 4th, 2007, 11:40 pm

teribble wrote:
95 rs wrote:i thought the fuel filter was on the driverside firewall in the engine compartment........

not at the pump
There is one there but i think they have two Filters not sure on the second one.

Is it the high-pressure filter on the firewall?

OldMan · Post by **OldMan** » November 5th, 2007, 1:19 am

There is a filter on the bottom of the fuel pump. You should start your car and then unplug the wiring harness that you see under the rear seat cushion, the car will die after a few seconds. Then turn your key off. What this does is relieve the fuel pressure. You then can disconnect both of the fuel lines visible in the picture. Have a couple of plugs handy to place over the 2 ports that the lines connect too. Then remove the screws that fasten the fuel access port. You can then carefully lift it out of the tank, your fuel pump is attached to this port. On the bottom of the fuel pump you will see a small screened sack, that is the filter. There is also a filter on the fire wall in the engine compartment, at least that is where it is on a 4 cylinder.

The in tank filter is one that most people overlook. It is easy to replace just make sure that the car is well ventilated while you are working and don't smoke while doing the job. You just need to take your time so as not to damage the float assembly that is also attached. After you remove all the screws from the top you just slowly raise it out of the tank, you may have to rotate it a little to get everything out, change the filter and replace everything back the way you removed it.

OldMan

Leedeth · Post by **Leedeth** » November 5th, 2007, 2:26 am

Thanks OldMan. As I go over the manual again, it's so much more clear. The manual is very ambiguous.

I'll get back to you if I have questions or when I'm done replacing it. If my camera agrees with the lighting conditions then I'll make a little DIY.

To answer the questions...there are two filters: the high-pressure filter is on the firewall, and the low-pressure one is attached to the bottom of the fuel pump.

rekognize · Post by **rekognize** » November 7th, 2007, 12:28 am

I went to partsource and they only have the fuel filter that goes on the firewall.. They don't even have the low-pressure fuel filter on their computer.. Do you know what it's called?

Is this the low-pressure filter?: http://cgi.ebay.com/ebaymotors/FUEL-PUM ... otohosting

OldMan · Post by **OldMan** » November 7th, 2007, 12:55 am

Yeah that would be it. I am sorry I wasn't thinking about the fact that they list it as a strainer. I don't know if you have an Advance Auto Parts store near you but they have them or can get them. I think any of the parts stores should be able to get them.

Sorry for the little glitch.

OldMan

rekognize · Post by **rekognize** » November 7th, 2007, 10:40 am

No worries, thanks for your help