I know this has been discusses ad nauseam, but today I drove the 55 to work…no issues. I left work around 12 and stopped by the store for about 20min. I came out to find gas pouring from my gas cap. I removed the cap to see fuel has backed up the fill hose. I hopped in and drove home about 4 miles away. When I got home it had stopped. About two hours later I drove one mile away to pick up my son from school. Drove one mile home. Went in the house and changed to work in the yard and came out to find the same issues…gas pouring out the cap. I had to siphon about 2-3 gallons out to get it to stop. The tank had been filled close to capacity about two days before. Now I understand why many early LCs have paint damage under the fill cap.
I recently removed my fuel tank and replaced all the hoses, i.e. All four tank vents to the evaporator, new fill, new over flow, and new post evaporator vent through the check valve and on to connect the undercarriage metal hose up to the charcoal canister. Under the hood the hose connects to the canister and the exit hose is connected to nothing…the evaporator piping system is not connected and the exit hose does not go into the manifold for clearing.
I have read posts all evening about corrections for this issues. The doesn’t seem To be any real consistency of solution. Some say Delete the charcoal filter and vent to atmosphere (VTA). Some say swap the “to tank” and “to manifold” hoses on the charcoal canister. Some say to buy an aftermarket canister from auto zone.
I have checked the canister by blowing air in each side and there is free flow of air in both directions. I have blown air from the hose end under the hood back towards the tank with the fuel cap off and air move freely…although it was a little though to do by mouth. So I believe their is a free flow of air in all directions.
I know the fuel cap is rubbish with a bad seal, but regardless fuel should not back fill up the fill hose With proper venting. Being new to the FJ world I am at a loss on what to do. However I am not a fan of driving a vehicle around that dumps gas at every stop.
When properly connected to the manifold does the manifold actively “pull” air and vapors from the canister? If so can I bypass the piping system and reconnect the hose to the manifold? Will bypassing the piping system cause the manifold to attempt to pull liquid fuel up to the manifold? Can some one snap a pic of where the hose from the piping system actually attaches to the manifold? The Hayes manual doesn’t provide the best detail.
I recently removed my fuel tank and replaced all the hoses, i.e. All four tank vents to the evaporator, new fill, new over flow, and new post evaporator vent through the check valve and on to connect the undercarriage metal hose up to the charcoal canister. Under the hood the hose connects to the canister and the exit hose is connected to nothing…the evaporator piping system is not connected and the exit hose does not go into the manifold for clearing.
I have read posts all evening about corrections for this issues. The doesn’t seem To be any real consistency of solution. Some say Delete the charcoal filter and vent to atmosphere (VTA). Some say swap the “to tank” and “to manifold” hoses on the charcoal canister. Some say to buy an aftermarket canister from auto zone.
I have checked the canister by blowing air in each side and there is free flow of air in both directions. I have blown air from the hose end under the hood back towards the tank with the fuel cap off and air move freely…although it was a little though to do by mouth. So I believe their is a free flow of air in all directions.
I know the fuel cap is rubbish with a bad seal, but regardless fuel should not back fill up the fill hose With proper venting. Being new to the FJ world I am at a loss on what to do. However I am not a fan of driving a vehicle around that dumps gas at every stop.
When properly connected to the manifold does the manifold actively “pull” air and vapors from the canister? If so can I bypass the piping system and reconnect the hose to the manifold? Will bypassing the piping system cause the manifold to attempt to pull liquid fuel up to the manifold? Can some one snap a pic of where the hose from the piping system actually attaches to the manifold? The Hayes manual doesn’t provide the best detail.
