C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Extra Fuel Filter?

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Old May 17, 2023 | 10:58 AM
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Default Extra Fuel Filter?

The 87 has started leaking fuel at the fuel filter. I replaced the in line filter and found another filter above it which is the culprit. This doesn't look stock, why would someone put a filter on the return line?


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Old May 17, 2023 | 11:01 AM
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It was a "fix" (by dealer)
for fuel line noise that some experienced.
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Old May 17, 2023 | 11:15 AM
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I just found some old threads about it. Looks like I'll order a paper filter and get it sealed up
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Old May 17, 2023 | 11:48 AM
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Originally Posted by drive it
It was a "fix" (by dealer)
for fuel line noise that some experienced.
The TSB was to address previous years

Was also a BGR install on many/most 1987.

This guy an NCRS 'self proclaimed' ALL KNOWING maintains that it's not!!! It's been pointed out to him previously and actually a fellow NCRS guy that he knows has actually brought this issue up previously. I pointed it out to @IHBD/@DaveP85C4 I believe several years ago!!

It's been recorded in NCRS comments and maybe recorded 'in production' as early as 9/86.

I have the 'pdf and actually supplied it to IHBD/DaveP85C4 previously. He knows the fellow who has documented it!!

Page 6 NCRS.org May/JUNE 2008 Arizona NCRS Summary report.





Originally Posted by 89Corvette6spdFX3
I just found some old threads about it. Looks like I'll order a paper filter and get it sealed up
I'd think it should be a 'local' buy

Last edited by WVZR-1; May 17, 2023 at 12:16 PM.
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Old May 17, 2023 | 02:20 PM
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For anyone who may find this thread, the replacement filter and O ring can be purchased from Autozone for $5.99. It is a GM genuine part# GF157.

It fits great and no more leak. The old O ring was trashed.

Last edited by 89Corvette6spdFX3; May 24, 2023 at 12:47 PM.
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