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02-14-2016, 12:40 PM
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#1 |
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Registered User
Join Date: May 2009
Location: Hazel Green AL
Posts: 286
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smelling gas fumes in 67 c-10
I bought this gas cap for my 67 in November.It did good for a couple of months.Now I am smelling strong gasoline fumes in the cab.When I remove this cap there is a strong vaccumn in gas tank.How can it test this cap and is it supposed to release both pressure and vaccumn?
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02-14-2016, 02:36 PM
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#2 |
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Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,334
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Re: smelling gas fumes in 67 c-10
Honestly if you're getting ANY pressure differential like that when taking it off and on, then you already know it's not working. Whether it's the wrong unit or a malfunctioning correct unit I don't know.
Whether it failed or was wrong the whole time is a curiosity, but the wrong cap is a safety problem, so get a new one promptly either way I think! Pretty clear you don't have a functioning vent anywhere else in the system (which I presume to be normal, but don't know my 67s).
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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02-14-2016, 02:42 PM
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#3 | ||||
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"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,978
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Re: smelling gas fumes in 67 c-10
Caps are cheap. Just get a new one to try. Get a it from a different vendor/manufacturer/place you got that one.
Like Dave said... there should be no vacuum or pressure at all. Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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02-14-2016, 02:58 PM
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#4 |
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Registered User
 
Join Date: Nov 2001
Location: Old Bridge,NJ
Posts: 838
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Re: smelling gas fumes in 67 c-10
Check your fuel lines exiting the bottom of the tank through the cab floor. They always get me nerves. Why do I sound like my mom. lol
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02-14-2016, 03:00 PM
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#5 |
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Registered User
Join Date: Jun 2010
Location: San Diego Co.
Posts: 1,187
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Re: smelling gas fumes in 67 c-10
Also check any rubber lines you may have in the cab. Mine were seeping...very strong odor.
__________________
1972 Chevy C-10, SWB, Fleet, 350/350, PS, PB, HEI, mostly stock, Survivor. 
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02-14-2016, 03:28 PM
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#6 | |
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Senior Member
Join Date: Apr 2005
Location: Cheyenne, WY
Posts: 740
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Re: smelling gas fumes in 67 c-10
Quote:
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