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Fuel filter: where, and how?

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Old Jun 27, 2013 | 09:26 AM
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Default Fuel filter: where, and how?

My 1992 C4 convertible was used so little that in 21 years before I bought it a month ago, it ran up only 9400 miles. I have changed all the fluids, but another forum member suggested also changing the fuel filter, which sounds like a good idea.

1. Where is the fuel filter?

2. What is the process for changing it, and can I do it at home on a gravel driveway with a 7% slope? (i.e. cannot use jack stands if lifting the car is required, nor will I go under the car when it is on a 7% slope)

3. What brand and part number of fuel filter should I be asking for?

Jim G
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Old Jun 27, 2013 | 09:32 AM
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Originally Posted by JimGnitecki
My 1992 C4 convertible was used so little that in 21 years before I bought it a month ago, it ran up only 9400 miles. I have changed all the fluids, but another forum member suggested also changing the fuel filter, which sounds like a good idea.

1. Where is the fuel filter?

2. What is the process for changing it, and can I do it at home on a gravel driveway with a 7% slope? (i.e. cannot use jack stands if lifting the car is required, nor will I go under the car when it is on a 7% slope)

3. What brand and part number of fuel filter should I be asking for?

Jim G
Did this just last week. It's about where the hood-door meet.. passenger side..kinda on top the frame there. Good luck if your not going under the car though. Youtube vid I saw showed feeding the filter to the engine bay after disconnecting supply line. I just did it all from underneath after parking the front end on top a landscaping timber.
Might add, I just picked one up at Autozone.. Fram.. no built in regulators or anything tricky about it.

Last edited by Mrmiata; Jun 27, 2013 at 09:34 AM.
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Old Jun 27, 2013 | 09:41 AM
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Originally Posted by Mrmiata
Did this just last week. It's about where the hood-door meet.. passenger side..kinda on top the frame there. Good luck if your not going under the car though. Youtube vid I saw showed feeding the filter to the engine bay after disconnecting supply line. I just did it all from underneath after parking the front end on top a landscaping timber.
Might add, I just picked one up at Autozone.. Fram.. no built in regulators or anything tricky about it.
Thank-you! Given the need to get under the car, and my inability to do that, I'll probably have to get one of the local shops to do it for me. If it's as simple as you describe, shouldn't cost me much.

Jim G
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Old Jun 27, 2013 | 10:20 AM
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Originally Posted by JimGnitecki
Thank-you! Given the need to get under the car, and my inability to do that, I'll probably have to get one of the local shops to do it for me. If it's as simple as you describe, shouldn't cost me much.

Jim G
On a lift with two handed access.. cakewalk. Laying on your back reaching around to the top of the frame.. PITA .. but she got done.. LOL
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Old Jun 27, 2013 | 01:03 PM
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Different story with a vert. The X-brace makes access to the filter more difficult.

Do a thread search here for tips that you can pass along to whoever does the filter change for you.
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Old Jun 27, 2013 | 01:10 PM
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Yup, I changed mine several years ago when I was putting new cats on the car (an engine failure had killed the old cats). Once the Xbrace is gone and particularly the passenger side cat it is right there.
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Old Jun 27, 2013 | 01:23 PM
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The locl Corvette shop guy is telling me there is no need to change that filter yet. He says with only 10,xxx miles on the car, and no symptom sof a plugged or obstructed fuel filter, he personally would not do it.

The convertible x-brace issue kind of reinforces the wisdom in just dropping the idea.

Jim G
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Old Jun 27, 2013 | 02:10 PM
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Originally Posted by JimGnitecki
The locl Corvette shop guy is telling me there is no need to change that filter yet. He says with only 10,xxx miles on the car, and no symptom sof a plugged or obstructed fuel filter, he personally would not do it.

The convertible x-brace issue kind of reinforces the wisdom in just dropping the idea.

Jim G
Yeah I missed that part about being a vert.. Need to get an x-brace on mine.. from what I've read it will help with the top off..
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Old Jun 27, 2013 | 02:14 PM
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Originally Posted by Mrmiata
Yeah I missed that part about being a vert.. Need to get an x-brace on mine.. from what I've read it will help with the top off..
Yes, it does HELP, but a C4 is still going to, by basic design attributes, creak and groan anyway.

Jim G
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Old Jun 27, 2013 | 02:46 PM
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The XBrace will help a lot on a coupe also.

The problem with a low mileage older car is that gasoline left in a car for long periods of time generates deposits. Maybe not change it now, but drive it 5-10k miles and than definitely change it.
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Old Jun 27, 2013 | 02:52 PM
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Originally Posted by pkincy
The XBrace will help a lot on a coupe also.

The problem with a low mileage older car is that gasoline left in a car for long periods of time generates deposits. Maybe not change it now, but drive it 5-10k miles and than definitely change it.
Yes, the local Corvette shop guy basically said somehting similar. No need to change it now, but plan on doing it in 10,000 miles.

Jim G
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Old Jun 27, 2013 | 03:24 PM
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Originally Posted by JimGnitecki
The locl Corvette shop guy is telling me there is no need to change that filter yet. He says with only 10,xxx miles on the car, and no symptom sof a plugged or obstructed fuel filter, he personally would not do it.

The convertible x-brace issue kind of reinforces the wisdom in just dropping the idea.

Jim G
I'd say that is an "ill-advised" personal opinion. Time not miles is the rationale here, I can't think of a better reason to service the filter now. Why wait for the symptoms and the problems? The "few miles" and years and months of storage between "drives" I'd think is the enough of a reason to do the service.

I can't think of many maintenance items that are - wait for problems to show up. I guess that there's no reason to maybe suspect the drive belt might need replaced? Wait until it leaves you on the side of the road?
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