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C4 inline fuel filter

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Old Mar 1, 2017 | 02:25 PM
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Default C4 inline fuel filter

Is there an inline fuel filter on a C4 and if so the location? I have a 91 if it matters. Thanks!
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Old Mar 1, 2017 | 02:30 PM
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The fuel filter will be on the inside of the frame rail just behind the starter. Not an easy replacement, but doable with the car off the ground. Just make sure the fuel tank is empty or very near it. Gas can flow thru the hard line if the tank has lots of gas in it.
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Old Mar 1, 2017 | 02:44 PM
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Originally Posted by c4cruiser
The fuel filter will be on the inside of the frame rail just behind the starter.
I thought I saw mine on the outside of the frame, did they move it in later years?
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Old Mar 1, 2017 | 04:45 PM
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My '84 is inside the frame. I found it pretty simple to replace.
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Old Mar 1, 2017 | 06:39 PM
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Originally Posted by divotdug
My '84 is inside the frame. I found it pretty simple to replace.
My 89, has it the same locations. Up on lift, a breeze to replace.
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Old Mar 1, 2017 | 07:00 PM
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Guess I'm going to have to get under there and double check then.
I could have sworn it was on the outside of the rail but that was just in passing.
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Old Mar 3, 2017 | 03:58 PM
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On my '92 it was on the inside frame rail.
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Old Mar 3, 2017 | 05:50 PM
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Originally Posted by c4cruiser
The fuel filter will be on the inside of the frame rail just behind the starter. Not an easy replacement, but doable with the car off the ground. Just make sure the fuel tank is empty or very near it. Gas can flow thru the hard line if the tank has lots of gas in it.



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Be careful and disconnect the battery before starting the job. My 91 had a heat shield that needed removal so I could get to the filter. My wrench touched one of the starter bolts when I went to loosen the nut that held the shield in place and made one heck of a spark. I was lucky as nothing caught fire.
You can peel back a corner of the fuel bib by the filler neck and use a small vice grip to pinch off the fuel line to prevent all your gasoline from siphoning out.
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