EchoVictor
Posts: 16
Joined: Tue Jul 18, 2017 3:08 pm

Fuel filter change

Mon Jun 08, 2020 5:06 am

Fuel filter replacement was due at a recent service. When I picked the car up from the Mits dealership, they said they couldn’t free up the filter from the tank so left it alone. So questions are: does this sound right? I’m slightly surprised how inaccessible the filter was made out to be. And is it a massive problem to not have this service item done long term? Most of my miles are on electric. Thanks in advance for any input.

jaapv
Posts: 4586
Joined: Mon Dec 16, 2013 1:18 pm
Location: Netherlands

Re: Fuel filter change

Mon Jun 08, 2020 1:21 pm

That does not sound right. Worth a complaint with Mitsubishi.
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greendwarf
Posts: 2243
Joined: Tue Aug 05, 2014 1:32 pm

Re: Fuel filter change

Tue Jun 09, 2020 1:54 am

What service was this? I don't ever remember changing a fuel filter as being a regular service item on any car I have had over the past 50 years.

DibbyDibbyDJ
Posts: 75
Joined: Sat Dec 28, 2019 2:34 pm

Re: Fuel filter change

Tue Jun 09, 2020 2:18 am

If you are/were in Australia it would be at 10 years or 150000 kms whichever is sooner
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AndyInOz
Posts: 582
Joined: Wed Sep 09, 2015 5:05 pm
Location: Australia

Re: Fuel filter change

Tue Jun 09, 2020 2:31 am

And in my case, I also added an extra fuel filter under the bonnet (not on my PHEV) where I could easily see and change the cartridges.

(The filter body was transparent, so that you could see the cartridge from outside)

Having been caught a couple of times by fuel in country petrol stations that was full of crud.
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richr
Posts: 216
Joined: Mon Dec 03, 2018 8:47 am
Location: Southern end of North Yorkshire, UK

Re: Fuel filter change

Tue Jun 09, 2020 5:01 am

Ah the good old days when we had carburettors and metal fuel tanks. Used to change the fuel filter every 2 years on quite a lot of cars. But the pipe from the tank was generally low pressure, so just a couple of jubilee clips for a cylindrical filter usually under the car. No filter in the tank itself.

Modern cars have a large filter in the tank before the pump, which doesn't usually clog for 10 years or more due to the large surface area that fuel can enter through, rather than a small pipe on a low pressure system.

Back when I was at university I had a friend whose 1982 VW Polo would stutter and die at almost exactly 50 miles of driving due to the filter clogging. Leave it for an hour and all the dirt would get sucked back into the tank and you could do another 50 miles ;)
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JohanvdH
Posts: 56
Joined: Mon Jun 12, 2017 1:35 am

Re: Fuel filter change

Tue Jun 09, 2020 9:02 am

The fuel filter is located below the rear seats and the dealer charges quite a lot of money to replace it (every 160.000 kilometres).
Our Prius never got a new fuel filter in 265.000 kilometres so I think I will skip this replacement.
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greendwarf
Posts: 2243
Joined: Tue Aug 05, 2014 1:32 pm

Re: Fuel filter change

Wed Jun 10, 2020 1:12 am

Ah, now I see why I've never come across this problem, if it is only required after such a high mileage - never been a travelling salesman :lol:

richr
Posts: 216
Joined: Mon Dec 03, 2018 8:47 am
Location: Southern end of North Yorkshire, UK

Re: Fuel filter change

Wed Jun 10, 2020 6:09 am

greendwarf wrote:Ah, now I see why I've never come across this problem, if it is only required after such a high mileage - never been a travelling salesman :lol:
Interval was every 2 years or 30,000 miles on most cars before the 1990s when fuel injection and high pressure in tank pumps started to replace the older carburettor or external pump injection systems.
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greendwarf
Posts: 2243
Joined: Tue Aug 05, 2014 1:32 pm

Re: Fuel filter change

Wed Jun 10, 2020 1:15 pm

richr wrote:
greendwarf wrote:Ah, now I see why I've never come across this problem, if it is only required after such a high mileage - never been a travelling salesman :lol:
Interval was every 2 years or 30,000 miles on most cars before the 1990s when fuel injection and high pressure in tank pumps started to replace the older carburettor or external pump injection systems.
Not on any of the old bangers I drove & did my own maintenance on from the mid 60s but perhaps I never had one as long as 2 years before they keeled over and died anyway (or I wrote them off :oops: ) Check the carb bowl for dirt, yes but no filter changes that I can remember, using workshop manuals. Of course, it could be just that my memory is failing like the rest of me :lol:

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