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02-12-2014, 12:31 PM
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#1 |
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Registered User
Join Date: Sep 2012
Location: bangor maine
Posts: 7
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Gas Tank Whining noise
I have a 1981 Chevy 3/4 ton camper special, 350 5.7 4 barrel quadrajet with duel fuel tanks.
I just recently replaced the fuel pump and after doing so I I now have a high pitched whistle noise coming from behind the cab. It sounded like it was coming out of the gas cap so I removed one of the caps and the sound stopped. To be honest it's almost like the whistling is due to excess pressure in the system being pushed by the cap and making a whistling sound. It doesn't matter which cap I remove (left or right tank) the sound will subside, but then start again when I put the cap back on. Is this new fuel pump pressurizing the system too much? Should I buy an after market cap with a pressure blow off? Any help would be appreciated. Thank you. |
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02-12-2014, 12:48 PM
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#2 |
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Registered User
 Join Date: Dec 2012
Location: sparta tennessee
Posts: 345
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Re: Gas Tank Whining noise
replace your cap to let it seal
__________________
1946 car hauler 1948 surburban 1937 chevy sedan 1940 olds sedan (project) 1967 ss396 chevelle 1999 dually crewcab(24000 miles) |
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02-12-2014, 02:08 PM
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#3 | |
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Registered User
Join Date: Sep 2012
Location: bangor maine
Posts: 7
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Re: Gas Tank Whining noise
Quote:
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