2005 Chevy Impala Wont start good when hot

2005 CHEVROLET IMPALA
85,000 MILES • 6 CYL • FWD • AUTOMATIC
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HOCKEYGEEK.86
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My car starts good in the morning or when it hasn;t been running for a while. When the engine is hot it will crank over and not fire sometimes it take 2 or 3 key on and offs before it starts. I changed the fuel filter. Changed air filter. There is no error codes. Just wondering what this could be.
It also has a funny noise when it heats up and you rev the engine up or start driving it has a whining noise. when you rev it over 4ooo it goes away.
Aug 22, 2009 at 8:08 PM
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