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Old 07-04-2012, 09:10 AM   #1
captdbg
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Gas Smell

We have a 69' with a gas smell in cab there is no leaks any suggestions on how to get rid of this problem.Thanks
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Old 07-04-2012, 10:15 AM   #2
PanelDeland
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Re: Gas Smell

You can check to see if the grommet around the filler is good.Some times it will leak a little there if over filled.There is also a ton of threads about swapping to a rear fuel tank and getting it out of the cab.The other thing to check would be vent's and hoses.A cap can also cause this if the cap is supposed to vent the tank but it has a sealed cap.
That's the things I can think of off hand.
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Old 07-04-2012, 11:32 AM   #3
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Re: Gas Smell

Also look at the rubber hoses. These can weep enough for a smelly cab but not enough to indicate a leak.
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Old 07-04-2012, 11:43 AM   #4
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Re: Gas Smell

if you can find no visible leaks - and you're perhaps not used to an in-cab tank sorta truck, I'd submit it's par for the course. You will likely get some fumes in the cab from time to time, especially when you fill up. If it's over-powering and persistent, then that's not normal, probably need to dig further - and the suggestions above are good ones.
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Old 07-04-2012, 12:10 PM   #5
bobs409
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Re: Gas Smell

At the far end of the scale, If it's real strong, check your rear cab mounts! My stepside cab drooped down on the passenger side from rot and the bolt actually pierced the tank just enough so gas would weep out. (I have another cab I'm going to rebuild for it, just rigged it for now) Took me a while to figure out what was causing the smell.

This same thing I found on a parts truck I bought last year so it's probably more common than one might think.
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Old 07-04-2012, 12:25 PM   #6
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Re: Gas Smell

Probably just a little bit of smell from the vented gas cap. Common on all trucks with the cap right near the drivers left shoulder.

Also... you say "no leaks". How about under the hood? Any carb leaks? A leaky carb will put some gas stink in the cab.

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Old 07-04-2012, 02:17 PM   #7
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Re: Gas Smell

Convert to diesel?
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Old 07-04-2012, 03:22 PM   #8
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Re: Gas Smell

But gasoline is the smell of victory!

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My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

Quote:
Originally Posted by LONGHAIR View Post
I would never rebuild a 305.
Quote:
Originally Posted by prostreetC-10 View Post
I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
Quote:
Originally Posted by Marv D View Post
Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
Quote:
Originally Posted by cableguy0 View Post
Its cheaper to listen to advice given when you ask for help than it is to ignore everyone and wait for carnage.
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