GM has eliminated the inline fuel filter on the Sierra pick-up (mine has the 4.3l engine). Service manager at the dealership said "The filter is in the tank" but any filter that does not have to be replaced cannot be much more than a strainer. I am planning to mount a spin-on fuel filter in the engine bay since I just do not feel very comfortable feeding the injection system with coarsely filtered fuel. BTW there is a tremendous amount of space in the engine bay since it has a V6 in a bay designed for a V8.
No Fuel Filter on '06 Sierra
- Thread starter George7941
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i find this hard to believe. the strainer does nothing as far as filtering goes, only prevents large partilcles from clogging the pickup. you need a fuel filter there, and i'm sure if you were to trace the lines to and from the tank, you find one.
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None of my jeeps have a filter other then the one in the tank. You can actually change it, if you want to ..but since you have to drop the tank ..no one tyically does it until the fuel pump gives up the ghost. Although I'm sure it's happened, I've never heard of it occuring in 10 years of ownership (well past the 100k mark for anyone who has had to do this).
You may find it pretty difficult to add an inline fuel filter. Most fuel lines are somewhat proprietary in their fastening/termination points. Adapting may require more then you're prepared for.
You may find it pretty difficult to add an inline fuel filter. Most fuel lines are somewhat proprietary in their fastening/termination points. Adapting may require more then you're prepared for.
JTK
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Yep, same goes with the 2005+ trailblazers. The fuel filter is in the tank. I've yet to confirm if it's a sock on the pump inlet or an actual cannister style filter.
I know my 2001 nissan sentra had nothing more that a sock.
Joel
Joel
Been there, done that. Believe me, there is no inline fuel filter.
You won't need to add another filter. Chrysler stopped using an inline filter years ago and few people had a problem with it. I'm sure if you pumped a tankful of bad gas that would be a different story, though. Your fuel system is high pressure, which means there is a good chance of leakage or fire if you added a filter under the hood.
I have some experience with diesel fuel systems since I maintain the trucks for a small moving company. We hardly ever have the water-in-fuel light go on and when it does go on I do not even get a full drop of water in the drained fuel, so diesel fuel that is sold is quite uncontaminated. About a year ago one of the trucks exhibited low fuel pressure and I suspected a bad lift pump but the fuel pressure went back to normal when I changed the fuel filter. I believe it was caused by just one bad batch of fuel. This is the kind of situation I am concerned about, most of the time the fuel is clean enough to be used without much filtering. An example of a filter I could install is a Fram FCS1136, it removes particles down to one micron, has a water separator, and is rated to 75psi. Definitely, installation has to be done properly since there is a high risk of fire. I have tapped into fuel systems before, with steel lines I cut it with a tube cutter and put ridges on the ends with a double flaring tool so that the hoses do not slip off. With my Sierra I can just cut the hose that comes up to the fuel rail and use brass hose barbs to connect to the cut ends.
i wouldnt worry about it. modern cars have oversize filters.
look at how huge an average modern fuel filter is compared to those cigarette lighter size filters that use to screw onto carburettors of american cars in the bad old days. those puny little things would clog up all the time. i had a ford torino and i had to change the puny little filter amlost every time i changed the oil.
now i look at a filter like the one on a honda civic or crv, or a in-tank filter of a dodge stratus, they are huge, probably 30 times as much filter area as the old american iron and can probably hold a pound of dirt.
look at how huge an average modern fuel filter is compared to those cigarette lighter size filters that use to screw onto carburettors of american cars in the bad old days. those puny little things would clog up all the time. i had a ford torino and i had to change the puny little filter amlost every time i changed the oil.
now i look at a filter like the one on a honda civic or crv, or a in-tank filter of a dodge stratus, they are huge, probably 30 times as much filter area as the old american iron and can probably hold a pound of dirt.
My 1995 Jeep has an inline filter... the change started on 1997 Grand Cherokees... No major problems. My father's 2000 Grand Cherokee has the in-tank filter and there have been no issues. My Jeep has 109,500 miles and his has 97,000
I just changed my fuel filter on my '94 Chev Impala SS with elec fuel pump in the tank. The outlet side of the old filter was pouring clean gas, but when I pulled out the rear (tank side) of the fuel filter, black gasoline poured out. It looked like Pepsi. I will try to cut open the old filter and see if there is any trapped debris. I say that the external filter is needed. You never know when you might get a bad batch of gas. Also remember not to fill up at a station when the tanker truck is pumping new gas in the underground tanks. Why? The pumping stirs up the sludge that has settled at the bottom of the tanks. Consider also using Top Tier gas as recommended by Honda, Toyota, BMW, and GM.
The marketing for this is interesting.
Fuel pump have a given life. It doesn't change much with filters chosen. Think of the filter as 1 less part to inventory. And, no more worry of clogged filters.
In marketing and manufacturing, I've heard mention of 'self cleaning' fuel injectors and 'comminuting' fuel pumps. I guess if the sock doesn't catch it, it'll be ground up in the pump, and then shot through the injectors.
Most FI vehicles with filters are under the same pressure. The only issue I see is with installation 'competence' when installing a filter in a vehicle without one.
I wonder what the effect of injector life and engine wear is with 'unfiltered' fuel.
I guess automakers have more faith in the 'gas station' maintenance than I do. I still occassionally see clogged fuel filters. So, if a filter clogs, its picking up garbage from pump wear, garbage from the fuel tank, and garbage from your gas station.
Fuel pump have a given life. It doesn't change much with filters chosen. Think of the filter as 1 less part to inventory. And, no more worry of clogged filters.
In marketing and manufacturing, I've heard mention of 'self cleaning' fuel injectors and 'comminuting' fuel pumps. I guess if the sock doesn't catch it, it'll be ground up in the pump, and then shot through the injectors.
Most FI vehicles with filters are under the same pressure. The only issue I see is with installation 'competence' when installing a filter in a vehicle without one.
I wonder what the effect of injector life and engine wear is with 'unfiltered' fuel.
I guess automakers have more faith in the 'gas station' maintenance than I do. I still occassionally see clogged fuel filters. So, if a filter clogs, its picking up garbage from pump wear, garbage from the fuel tank, and garbage from your gas station.
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