Fuel filter replacement mileage ?

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candymancan
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Fuel filter replacement mileage ?

Post by candymancan »

Just curious whats the mileage you should change the fuel filter ? When i got my 90 i did a full tune up including filter.. Old filter was pouring out black gasoline i doubt it was ever changed. Its been about 9k miles so im just wondering. Do they make the 3 nipple filters in clear ? I could only find the metal ones with the return line.
1998 Jeep Grand Cherokee 5.9L Limited 219k
1998 Jeep Grand Cherokee 4.0 I6 laredo 430k
1990 Jeep Grand Wagoneer 155k
1976 Jeep J10.. 85k(repaired)
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Stuka
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Re: Fuel filter replacement mileage ?

Post by Stuka »

I have a glass filter with a replaceable element, so I just clean it out when it starts getting stuff in it.
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Pevious Jeeps: 1981 J10, 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ

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candymancan
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Re: Fuel filter replacement mileage ?

Post by candymancan »

Does yiur glass have the third nipple for the drain back ?
1998 Jeep Grand Cherokee 5.9L Limited 219k
1998 Jeep Grand Cherokee 4.0 I6 laredo 430k
1990 Jeep Grand Wagoneer 155k
1976 Jeep J10.. 85k(repaired)
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Stuka
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Re: Fuel filter replacement mileage ?

Post by Stuka »

candymancan wrote:Does yiur glass have the third nipple for the drain back ?
Mine does not, I removed the return line because I run a fuel pressure regulator and I cannot regulate the pressure properly with it there.

However, you could run a T after it for the return line. I have seen T's with a large and small output for this scenario. Large to the carb, small to the return.
2017 JKU Rubicon
Pevious Jeeps: 1981 J10, 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ

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candymancan
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Re: Fuel filter replacement mileage ?

Post by candymancan »

Would it hurt to run two fuel filters ? a clear one before the one near the carb ?
1998 Jeep Grand Cherokee 5.9L Limited 219k
1998 Jeep Grand Cherokee 4.0 I6 laredo 430k
1990 Jeep Grand Wagoneer 155k
1976 Jeep J10.. 85k(repaired)
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Stuka
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Re: Fuel filter replacement mileage ?

Post by Stuka »

Should be fine, so long as volume doesn't drop off too much. Stock mechanical pump will put out 11psi, so pressure should be fine.
2017 JKU Rubicon
Pevious Jeeps: 1981 J10, 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ

letank
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Re: Fuel filter replacement mileage ?

Post by letank »

candymancan wrote:Would it hurt to run two fuel filters ? a clear one before the one near the carb ?
As said above, no problems for me either , I have the clear plastic before the E pump and the 3 nipple one laying on the inner fender well, no need to cook the filter by the heat from the exhaust manifold.

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HeavyMetalThunder_81
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Re: Fuel filter replacement mileage ?

Post by HeavyMetalThunder_81 »

I have a serviceable glass filter before my mechanical pump to prevent crap from getting into it. Works great. Mr. Gasket brand, I believe.
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tgreese
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Re: Fuel filter replacement mileage ?

Post by tgreese »

Re service life of the fuel filter, typically the rubber hoses need replacing before the filter does IMO. The official service interval is in the TSM, if you look for it. '76 TSM page 4-2 says 15,000 miles for all models. The filter should not be clogged at that point, but replacing the hoses along with the filter avoids the significant fire hazard of these hoses cracking and leaking.
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Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS/PDB, hubcaps.
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