Technical fuel filter

[Leroypanda]

Anyone point me in the direction of where it is on the 1.2 ( if it has one) and the part number ( if it has one) thanks

 

[chris3234]

No fuel filter on any fiat petrol engine at least not in UK and most of Europe anyway

 

[murphyv310]

Of course there is a fuel filter.
Like many vehicles they last the life of the car and are not a service item. They are in tank filters and have been around for many years now.

 

[Herts Hillhopper]

No fuel filter on any fiat petrol engine at least not in UK and most of Europe anyway

Yes, there is a filter.
For petrol cars, its in the fuel tank and non-replaceable (so no part number)
For diesel, under the bonnet and long life.

There is also a charcoal filter in the fuel tank filler/breather (the so called 'evaporation canister'), that is replaceable but very very infrequently.

 

[chris3234]

Yes, there is a filter.
For petrol cars, its in the fuel tank and non-replaceable (so no part number)
For diesel, under the bonnet and long life.

There is also a charcoal filter in the fuel tank filler/breather (the so called 'evaporation canister'), that is replaceable but very very infrequently.

The fuel pump one isn't really a filter more just a mesh screen so should never need looking at

A diesel engine car isn't petrol

 

[varesecrazy]

No fuel filter on any fiat petrol engine at least not in UK and most of Europe anyway

Older petrols had inlines tucked around the bodywork

Most will now have a filter built into the pump

https://www.fiatforum.com/punto-mk1-guides/315620-fuel-pump-assembly-replacement-punto-1-1-spi.html?p=4257783

As people say.. it will generally give trouble free service for the life of the car..
however.. if you fuel it from places with contaminated fuel.. you can give any filter a hard time

 

[varesecrazy]

Anyone point me in the direction of where it is on the 1.2 ( if it has one) and the part number ( if it has one) thanks

Why are you looking for one?

 

[FiatCanada]

According to dealership my 2015 Fiat 500 Sport doesn't list a " fuel filter ".

 

[Leroypanda]

Why are you looking for one?

never serviced it so i just wondered if it had one.

 

[murphyv310]

The first car I had with an in tank filter was the Rover 75.
It was more than just a mesh as you need micronic filtering for fuel injection, I suspect the Fiat will be the same. Unfortunately on the 75 the filter could separate and a modification was issued to fit an orange clip. Although you could replace the filter it was a lifetime fit.

 

[varesecrazy]

never serviced it so i just wondered if it had one.

Yes..it has a filter
No...Its not a service item

See the link about fuel pump assembly

https://www.fiatforum.com/punto-mk1-guides/315620-fuel-pump-assembly-replacement-punto-1-1-spi.html?p=4257783

 

[R1NGA]

Those gauze mesh devices are of course a filter by definition, but I would be amazed if there's not another proper fine filter somewhere in the system. As mentioned above, Injection needs VERY clean fuel and those dirty particles not picked up by the in-tank gauze will need to be stopped somewhere further down the line. Whilst I admit there's nothing obvious on any of the online parts schematics, I remain amazed if this is actually the case.

As it happens I have just had to replace the in-tank pump in my Morgan 3-Wheeler and the gauze was quite dirty, but clearly it doesn't catch everything as the pump motor failure was clearly down to debris damage. I also changed the MAHLE in-line fuel filter (about the size of a normal can of Red Bull) as a precaution, as it would have been dirty after 7 years and 20,000 miles.

My late father never believed that fuel filters needed changed - until his SJ410 Suzuki Jeep ground to a halt on the M23 with a completely blocked fuel filter. He started changing them after that....

So quite how our beloved Fiats keep running on trust that the fuel is clean is beyond me

 

[chris3234]

Those gauze mesh devices are of course a filter by definition, but I would be amazed if there's not another proper fine filter somewhere in the system. As mentioned above, Injection needs VERY clean fuel and those dirty particles not picked up by the in-tank gauze will need to be stopped somewhere further down the line. Whilst I admit there's nothing obvious on any of the online parts schematics, I remain amazed if this is actually the case.

As it happens I have just had to replace the in-tank pump in my Morgan 3-Wheeler and the gauze was quite dirty, but clearly it doesn't catch everything as the pump motor failure was clearly down to debris damage. I also changed the MAHLE in-line fuel filter (about the size of a normal can of Red Bull) as a precaution, as it would have been dirty after 7 years and 20,000 miles.

My late father never believed that fuel filters needed changed - until his SJ410 Suzuki Jeep ground to a halt on the M23 with a completely blocked fuel filter. He started changing them after that....

So quite how our beloved Fiats keep running on trust that the fuel is clean is beyond me

Probably as petrol fuel on most EU countries is heavily regulated and high quality so didn't need very fine filters like the old days


You dont hear many people complain of fault's with the injection system or fuel pumps of petrol Fiat's
So whatever they are doing must be working

 

[varesecrazy]

Production of a fuel is indeed tightly regulated

But the quality of pump dispensed fuel is down to the forecourt

My wife worked in Petrochems.. customer care

Supplied a list of 'regular offenders'

 

[murphyv310]

Hi.
When I had the Lounge I traced the fuel line from tank to engine and there was no external filter. Like on the 75 the filter has to be more than a mesh, fine grit particles would ruin injectors very quickly. I believe in tank filters are commonplace as external ones can corrode, leak and can be a hazard in an accident, it's far safer in the tank. I remember some believing that the fuel pump is dangerous in the tank due to sparks from the pump motor......... In reality the tank is full of fuel vapour with insufficient oxygen to allow a burn.

 

[Pugglt Auld Jock]

Older petrols had inlines tucked around the bodywork

Most will now have a filter built into the pump

Felicity (1992) had one of those small aluminium jobs under the spare wheel in the engine bay. Becky (2010) has a "lifetime" one in her petrol tank.

 

[Herts Hillhopper]

Those gauze mesh devices are of course a filter by definition, but I would be amazed if there's not another proper fine filter somewhere in the system. As mentioned above, Injection needs VERY clean fuel and those dirty particles not picked up by the in-tank gauze will need to be stopped somewhere further down the line. Whilst I admit there's nothing obvious on any of the online parts schematics, I remain amazed if this is actually the case.

As it happens I have just had to replace the in-tank pump in my Morgan 3-Wheeler and the gauze was quite dirty, but clearly it doesn't catch everything as the pump motor failure was clearly down to debris damage. I also changed the MAHLE in-line fuel filter (about the size of a normal can of Red Bull) as a precaution, as it would have been dirty after 7 years and 20,000 miles.

My late father never believed that fuel filters needed changed - until his SJ410 Suzuki Jeep ground to a halt on the M23 with a completely blocked fuel filter. He started changing them after that....

So quite how our beloved Fiats keep running on trust that the fuel is clean is beyond me

there is a second filter on the injector rail where the fuel line connects. But again, not replaceable.

 

[Pugglt Auld Jock]

there is a second filter on the injector rail where the fuel line connects. But again, not replaceable.

Thanks, I didn't know that.

 

[varesecrazy]

As an aside :

I am wondering if you suspect a clogged tank screen filter

Could you reverse the pumps flow.. backflushing the filter.. into a container

For inspection

My mid 80's Regata models had a reputation for fuelling issues..

Putting an airline onto the holes where the
Carburettor jets were removed from would cover your hand in Golden slivers.. of 'varnish' from stale fuel .. and black specks of crud

I can imagine some of those impurities still factor in running issues..