Notices
1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

Gas cap

Thread Tools
 
Search this Thread
 
Old Jun 2, 2015 | 08:00 PM
  #1  
skidoorulz's Avatar
skidoorulz
Thread Starter
|
Fleet Mechanic
10 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2014
Posts: 1,529
Likes: 271
From: Billings Montana
Gas cap

Is there such thing as a vented gas cap that lets pressure out as well as letting air in to eliminate a vacuum in the tank? Now that it is finally warming up here my tank is pressurizing to the point the cab fills up with fumes.
 
Reply
Old Jun 2, 2015 | 08:27 PM
  #2  
6t6merc's Avatar
6t6merc
Cargo Master
20 Year Member
Liked
Loved
Joined: Apr 2001
Posts: 2,697
Likes: 46
From: Vancouver
I think all those you'll see at the store are vented.
Eric
 
Reply
Old Jun 2, 2015 | 10:08 PM
  #3  
Shadowrider123's Avatar
Shadowrider123
Fleet Mechanic
15 Year Member
Photogenic
Joined: Oct 2007
Posts: 1,972
Likes: 103
Whenever I gas up I loosen the cap when I get home to relieve the pressure.
 
Reply
Old Jun 3, 2015 | 05:26 AM
  #4  
jowilker's Avatar
jowilker
Fleet Owner
25 Year Member
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Club FTE Silver Member

Skid, I can imaging the rubber hose between the filler neck and tank needs replacing. Usually when that is in good shape there is no smell in the cab.


John
 
Reply
Old Jun 3, 2015 | 07:15 AM
  #5  
skidoorulz's Avatar
skidoorulz
Thread Starter
|
Fleet Mechanic
10 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2014
Posts: 1,529
Likes: 271
From: Billings Montana
Brand new hose clamps very tight
 
Reply
Old Jun 3, 2015 | 08:13 AM
  #6  
hiball3985's Avatar
hiball3985
Logistics Pro
Joined: Mar 2005
Posts: 3,771
Likes: 80
From: tujunga, calif
Gas caps that vent to the atmosphere have been illegal since the 70's. The vented one sold today only let air in. They are a PITA on older systems. I have one that I drilled a small 1/16 hole in it to relieve the pressure..
 
Reply
Old Jun 3, 2015 | 01:13 PM
  #7  
My1964ford's Avatar
My1964ford
Senior User
Joined: Oct 2014
Posts: 313
Likes: 1
Hey guys I'm needing to buy a new gas cap and I found one in the MAC's catalog but the one I like happens to be for years 48-50. Does anyone know if it will still fit?

I tried calling MAC but whoever I was talking to was not wanting to be helpful.

I don't like the "warning! Fuel spray may cause injury" thing
 
Reply
Old Jun 3, 2015 | 01:35 PM
  #8  
NumberDummy's Avatar
NumberDummy
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Club FTE Gold Member
1948/50 is different, 1951/55 is different.

B6TZ-9030-A .. Fuel Cap-Vented-Anti-Surge-Chrome (Motorcraft FC-23) / Obsolete ~ Available NOS & Reproduced

1956/60 F100/1100 & 1961/72 F100/750 except 1970/72 F100/250 with Evaporative Emission.

HASELDEN BROTHERS in Hemingway SC has 1 = 843-558-2134.

KLIMESH MOTOR SALES in Calmar IA has 6 = 563-562-3241.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Jun 3, 2015 | 01:35 PM
  #9  
Shadowrider123's Avatar
Shadowrider123
Fleet Mechanic
15 Year Member
Photogenic
Joined: Oct 2007
Posts: 1,972
Likes: 103
Like I say, first stop after you gas up vent the tank by loosening the cap. The gas is stored underground and on a hot summer day it goes from a 60-65 degree state to a 80+ degree state.


Its not rocket science.
 
Reply
Old Jun 3, 2015 | 01:41 PM
  #10  
Tedster9's Avatar
Tedster9
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
The sending unit/gasket area can result in fumes escaping too. Use new gasket and suitable sealer if required. Once new filler hose and clamps are installed and everything is squared away there won't be any fuel odors in the cab.

Old Truck Dog, Burlap, and Barn, well that's different.
 
Reply
Old Jun 3, 2015 | 04:16 PM
  #11  
jowilker's Avatar
jowilker
Fleet Owner
25 Year Member
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Club FTE Silver Member

There aren't many places that gas fumes can escape into the cab. I can't imagine that you can smell gas and not see a wet place.

John
 
Reply
Old Jun 4, 2015 | 09:43 AM
  #12  
sseebart's Avatar
sseebart
Senior User
Joined: Jun 2014
Posts: 291
Likes: 1
From: California
I had a similar problem with the gas cap--check this thread for the one that worked for me finally:

https://www.ford-trucks.com/forums/1...-for-long.html

~Steve
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Shadowrider123
1961 - 1966 F-100 & Larger F-Series Trucks
4
Aug 9, 2014 04:25 PM
Becky_is_a_66
1961 - 1966 F-100 & Larger F-Series Trucks
10
Mar 31, 2013 01:31 PM
Daddywags
1961 - 1966 F-100 & Larger F-Series Trucks
4
Jul 20, 2011 10:17 PM
Dj300ford
1978 - 1996 Big Bronco
6
Aug 24, 2005 05:44 PM
78RangerXLT
Fuel Injection, Carburetion & Fuel System
3
Apr 20, 2003 10:52 AM




All times are GMT -5. The time now is 02:38 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE