How often do you change your fuel filter? - Alfa Romeo Bulletin Board & Forums
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post #1 of 16 (permalink) Old 05-14-2014, 05:35 AM Thread Starter
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How often do you change your fuel filter?

Been driving the Spider for about 3 weeks now after winter storage when it started acting up a few days ago. Fuel pressure light would only go out after 15-20 sec. and car would erratically lose power, sputter and sometimes even stall after maybe 20 minutes of driving. Of course, it would wait until there was plenty of traffic to do this.

I immediately figured out it was a fuel starvation problem and suspected one of the pumps as I had replaced the rear inline filter just last year. As a cheap precaution I changed the fuel filter once again and just like magic, the problem went away. The one year old filter was almost completely clogged.

When winterizing the car, I make sure I completely fill up the tank and add fuel stabilizer. I'm now on my 2nd tank of gas so no longer running on the old stuff.

Is replacing the fuel filter once a year normal or should I be worrying about the condition of the gas tank?

Marc
1980 Spider, 1997 Fiat Coupe 20VT, 1965 Giulia TI, 1971 Spider 1300 Junior
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post #2 of 16 (permalink) Old 05-14-2014, 05:45 AM
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an "almost completely clogged filter" after just a year points more to a bad tank if you ask me.
I change mine maybe every 2 years....just because it is cheap and easy to do, even then the fuel that comes out is still clean looking.

Dom - Alfa Spider 1990 S4 - formerly: Alfa 101 Sprint, 2600 Sprint, Montreal - family classics: Jensen Interceptor II, '58 Hooper RR Silver Cloud I, Shadow II, '60 Corvette.
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post #3 of 16 (permalink) Old 05-14-2014, 06:11 AM Thread Starter
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an "almost completely clogged filter" after just a year points more to a bad tank if you ask me.
I change mine maybe every 2 years....just because it is cheap and easy to do, even then the fuel that comes out is still clean looking.
The fuel coming out was clean looking but the flow was very restricted. Tried blowing through the used filter and hardly any air was coming through. Oh well, cheap and easy to do so will add to my spring wake up routine.

Marc
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post #4 of 16 (permalink) Old 05-14-2014, 06:35 AM
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My carburettor 1970 Spider haven't needed a new fuel filter in the 9 years I've owned it.
Absolutely lots of **** in the fuel tank.
Erik
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post #5 of 16 (permalink) Old 05-15-2014, 10:31 PM
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I change certain things every two to three years; the fuel filter being one of them. If the fuel looks like it is deteriorating or getting dirty/clogging then the fuel filter is changed on a shorter time frame. I try to do preventive maintenance on all my cars.
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post #6 of 16 (permalink) Old 05-16-2014, 05:18 AM
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Having to replace the fuel filter every year is absolutely not normal, even if your Spider is a daily driver. That said, you can still get a lot of miles out of a not perfect tank (and the filter) by simply not letting the gasoline get low.

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Enrique
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post #7 of 16 (permalink) Old 05-16-2014, 07:58 AM
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If the old filter is that plugged up I think I'd cut it open and see if I could determine what exactly it is that clogged it.

Paul - 1972 Spider - (2)1991 164S's - 1983 308 - 2001 Discovery - 1997 F350
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post #8 of 16 (permalink) Old 05-16-2014, 08:09 AM
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I will second Pauls advice. Get the hacksaw out!

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post #9 of 16 (permalink) Old 05-16-2014, 08:14 AM Thread Starter
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Quote:
Originally Posted by kcabpilot View Post
If the old filter is that plugged up I think I'd cut it open and see if I could determine what exactly it is that clogged it.
Yeah, I put it aside for that purpose. Although my usual trigger for refueling is the half tank mark, I am also very particular about which gas station I use. I always fuel up at Shell to insure no ethanol. I may have stretched the limit a couple of times waiting to get to my usual station....

I'll post a pic of the filter if I find anything interesting in there.....

Marc
1980 Spider, 1997 Fiat Coupe 20VT, 1965 Giulia TI, 1971 Spider 1300 Junior
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post #10 of 16 (permalink) Old 05-23-2014, 06:17 AM Thread Starter
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So here are some pics of the paper insert of the fuel filter. very dirty as you can see but not sign large rusty particles. I suspect the dark areas are some type of carbon coating?
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Marc
1980 Spider, 1997 Fiat Coupe 20VT, 1965 Giulia TI, 1971 Spider 1300 Junior
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post #11 of 16 (permalink) Old 05-23-2014, 07:40 AM
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Some kind of precipitate is in the tank, so a floss is needed in the near future.
Their may be flakes in there, too, but they don't get sucked up by the pump.
Erik
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post #12 of 16 (permalink) Old 05-23-2014, 07:50 AM Thread Starter
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Some kind of precipitate is in the tank, so a floss is needed in the near future.
Their may be flakes in there, too, but they don't get sucked up by the pump.
Erik
Actually what looks like precipitate is filter shreds from the hacksaw tearing into the filter. Nevertheless, a tank inspection is likely a good idea.

Marc
1980 Spider, 1997 Fiat Coupe 20VT, 1965 Giulia TI, 1971 Spider 1300 Junior
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post #13 of 16 (permalink) Old 05-23-2014, 08:13 AM
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Need to pull the in-tank pump out and inspect it along with the connector hose between the boost pump and the tank flange. It may be that the hose is deteriorating and sluffing off internally. I think it's almost a certainty that the fuel tank needs a professional cleaning.

Of course, when opening a fuel tank take ALL precautions. Remove battery from car, do the work outside, and take great precautions to avoid sparks from tools, etc.

John Stewart
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91 164S

Last edited by Roadtrip; 05-23-2014 at 08:16 AM.
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post #14 of 16 (permalink) Old 06-13-2019, 07:50 PM
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Revisiting this thread.

What is the consensus for how often should you change the fuel filter?

Never if the car is running good or every how many number of years?

Thanks

1992 Alfa Romeo Spider Veloce, 2017 Alfa Romeo Giulia, 2018 Volkswagen Tiguan SEL Premium
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post #15 of 16 (permalink) Old 06-14-2019, 09:40 PM
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Anyone with feedback on how often change the fuel filter?

Thanks

1992 Alfa Romeo Spider Veloce, 2017 Alfa Romeo Giulia, 2018 Volkswagen Tiguan SEL Premium
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