Gas spilling out! Help!!
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Senior User
Joined: Aug 2012
Posts: 113
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From: Phoenix
Gas spilling out! Help!!
I went out to my truck and found the gas coming out of the fill spou, like it was being forced out. It has eaten away my paint and screwed it up pretty good. There seems to be a lot of pressure in there. The fuel filter is remaining full, but it used to drain back out when parked. I need to know why there is so much pressure. The truck is a 62 with a 223 engine and everything is pretty much stock. Help!!!!
Elder User
Joined: Apr 2008
Posts: 619
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From: Montpelier, VA
If you park on a hill and the driver's side is on the downhill side, this will happen when you have a full tank. Either make sure that when you park the filler neck is on the uphill side or don't fill the tank all of the way up.
Lead Driver
Joined: Jun 2006
Posts: 5,661
Likes: 983
From: Near Yosemite CA
Full tank at night, when it gets hot it expands and spews, it will take you a time or 2 to remember that, then I only fill up before I do run around and go home so I use a few gallons, and even then, I still park with the filler necks UPHILL. My 63, my 66, and my 77 ALL do it with a full tank/tanks. Mainly only in summer, but have had it happen in winter when cold in a.m. and I filled up right before I got to work, warmed up and she starts spewing. Then you get to drive home smellin like a molotov cocktail,,,
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Senior User
Joined: Aug 2012
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From: Phoenix
Thanks for the input friends. I was afraid I had overfilled it and not driven off enough before it warmed up. I may have to keep that tank around 1/2 during the summer, but unfortunately my paint job is still messed up. .
Posting Guru
Joined: Jan 2011
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From: Rossmoor at Seal Beach
Get a new fuel cap.. it should allow for vacuum ventilation but not purge ventilation unless you over filled it... Fuel tanks should not be filled more than 82-87% due to expansion... If you fill early in the morning fill it only 75% Cool summer mornings with hot summer afternoons are the toughest time...
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Senior User
Joined: Aug 2012
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From: Phoenix
I had just bought a new locking gas cap from so-cal speed shop that was supposed to be made for my truck and I filled the truck up last night around 3 or 4 so it was already pretty hot. Maybe it was completely full, but I had driven a good 10 miles before it was parked and did this. I think that the design of the street leaned in to the fill side and that made things worse. I'm hoping that filling less will help but now I'm going to have to fix the paint. Tough lesson.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
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From: Creedmoor, North Carolina
I had just bought a new locking gas cap from so-cal speed shop that was supposed to be made for my truck and I filled the truck up last night around 3 or 4 so it was already pretty hot. Maybe it was completely full, but I had driven a good 10 miles before it was parked and did this. I think that the design of the street leaned in to the fill side and that made things worse. I'm hoping that filling less will help but now I'm going to have to fix the paint. Tough lesson.
This is something that occurred in behind the seat tanks. I first saw it in the 1950s with my dads truck.
You can use a couple choices don't fill it up or spend a lot of money on caps that don't work.
John
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Tuned
Joined: Oct 2012
Posts: 362
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Learned the lesson myself.
Had to have the corner of my pickup cab repainted.......
Apparently I am a slow learner.....
I done it a couple times, but fortunately I caught it before it ruined the paint agian
Had to have the corner of my pickup cab repainted.......
Apparently I am a slow learner.....
I done it a couple times, but fortunately I caught it before it ruined the paint agian
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Joined: Nov 2006
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From: Simi Valley, CA
Heat causes gasoline to expand, so when you fill the tank all the way up (18 gallons as original), some will leak out. A very common problem on these trucks.
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