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

Bad gas???

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Old Sep 14, 2013 | 05:24 PM
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Default Bad gas???

88' had been sitting for a couple of years....replaced fuel pump, filter and topped off with new gas. Takes a while to start and releases a rich smelling smoke. I'm sure it had old gas in it....could the smoke and smell be the old gas burning out? Thanks for the help.
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Old Sep 14, 2013 | 05:48 PM
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You should change the fuel filter and run some type of fuel cleaner thru the system. How much gas did it take ? If you get lucky it will clean out the system and you might be OK

Last edited by floridamale; Sep 14, 2013 at 05:52 PM.
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Old Sep 14, 2013 | 06:03 PM
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Originally Posted by floridamale
You should change the fuel filter and run some type of fuel cleaner thru the system. How much gas did it take ? If you get lucky it will clean out the system and you might be OK
Thx...changed pump and filter, put some fuel cleaner in and it only took about 5 gal of fresh 93.
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Old Sep 14, 2013 | 08:40 PM
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Honestly if it sat for a couple years and never ran or anything like my 89' did when I got it, then I would drain the fuel before you happen to make anything else worse. I did it and change the pump and filter and have not had any fuel problems yet. A year and a half later.

Just my opinion.
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Old Sep 15, 2013 | 09:01 AM
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pull the vac tube on the pressure reg...see if there's gas..

then.....while you"re waiting for the factory manual you need, take off the tb.. clean it/ install a new iac....probably run a lot better there's instructions in this forum how to set the idle/tps...
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Old Sep 15, 2013 | 09:34 PM
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Thx all!
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