Fuel vapor smell help!
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I installed a Procharger and just got it running last night. This morning I had a strong fuel smell in the garage. I have been over all the fuel lines 10 times and have no leaks. Now, the EVAP system runs into the manifold behind the throttle body - could this be pressurizing and backing the smell out? There was not anything in the instructions about rerouting this...
Thanks,
Mike
Thanks,
Mike
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Yes. Put all Aeromotive fuel rails, regulator, plumbing kit, and changed the fuel filter/installed their return line system which taps into the old return line that was on the filter. It seems the smell is more to the front of the car...
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Most likely have a small leak, vacuum cannister is int he rear and if it was blowing boost into the evap the rear would be pretty bad.
I had a small leak on one on the rails on the rear where I didnt tighten a pipe fitting enough and it was seeping enough to smell but not to drip. I'm not familier with the aeromotive setup but also make sure any braided like isnt seeping. If you dont get a good seal on the hose ends the braided hose will wick up that fuel the whole length and stink like crazy and never drip a drop..
I had a small leak on one on the rails on the rear where I didnt tighten a pipe fitting enough and it was seeping enough to smell but not to drip. I'm not familier with the aeromotive setup but also make sure any braided like isnt seeping. If you dont get a good seal on the hose ends the braided hose will wick up that fuel the whole length and stink like crazy and never drip a drop..
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My car smelled terrible after installing braided fuel lines, the smell just came through the hose. I had to redo everything with Earl's teflon braided line. It is more like a plastic tube that has the braided covering.
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Originally Posted by 2001WS6Vert
My car smelled terrible after installing braided fuel lines, the smell just came through the hose. I had to redo everything with Earl's teflon braided line. It is more like a plastic tube that has the braided covering.
Always buy the hose and fittings from the same company and avoid 'bulk' off-brand hose and you will usually be OK. But its easy to mess up assembling them and having them seep as well..
Or just use the push lock stuff, not as pretty and you will have sore hands putting the fittings on but they seldom leak and its impossible to screw them up.
#7
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It has been known to happen. Some hose has worse permeability than others. The Aeromotive Goodridge may allow more fumes to penetrate than say Aeroquip hose.
Mike, smell your hose and see if its a contributor and then check the vapor canister. If you still suspect the vapor cannister call Jim or myself ( I purchased the 10.5 sintered iron single setup and hemi aluminum flywheel from you last year) and we will try to help you sort it out. It is however not unusual to smell gasoline after braided line install.
Mark
Mike, smell your hose and see if its a contributor and then check the vapor canister. If you still suspect the vapor cannister call Jim or myself ( I purchased the 10.5 sintered iron single setup and hemi aluminum flywheel from you last year) and we will try to help you sort it out. It is however not unusual to smell gasoline after braided line install.
Mark
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Originally Posted by andereck
It has been known to happen. Some hose has worse permeability than others. The Aeromotive Goodridge may allow more fumes to penetrate than say Aeroquip hose.
Mike, smell your hose and see if its a contributor and then check the vapor canister. If you still suspect the vapor cannister call Jim or myself ( I purchased the 10.5 sintered iron single setup and hemi aluminum flywheel from you last year) and we will try to help you sort it out. It is however not unusual to smell gasoline after braided line install.
Mark
Mike, smell your hose and see if its a contributor and then check the vapor canister. If you still suspect the vapor cannister call Jim or myself ( I purchased the 10.5 sintered iron single setup and hemi aluminum flywheel from you last year) and we will try to help you sort it out. It is however not unusual to smell gasoline after braided line install.
Mark
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I dont doubt some hose seeps a bit, I have fixed quite a few stinkers by using different fittings and redoing them and some others had to replace the hose (even with the same brand sometimes). Wonder if its just a run by run issue or if one brand is always better then the others?
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I was kind of thinking it was coming form the hoses/ends. I can smell it when I get my sniffer close to them. I'll check everything over again tonite for leaks but will probably go the teflon route to eliminate this and keep my wife from asking why the garage smells so bad ![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
Thanks everyone!
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Thanks everyone!
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Originally Posted by Stick only
I was kind of thinking it was coming form the hoses/ends. I can smell it when I get my sniffer close to them. I'll check everything over again tonite for leaks but will probably go the teflon route to eliminate this and keep my wife from asking why the garage smells so bad ![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
Thanks everyone!
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Thanks everyone!
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Thats what I really would like to do anyway - take all the EVAP off. My understanding is it vents the gas tank to the manifold. Would we need another vent of some sort if we remove this, or will it build pressure if we cap it off?
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I am using just a looped vent higher then the top of the tank, evap on mine is long gone. Surprisingly it doesnt stink up the garage at all. As far as the cap test they used to just take them off and check the cap, if they pressurize the tank to check a regular vent wont work.
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Originally Posted by Stick only
Thats what I really would like to do anyway - take all the EVAP off. My understanding is it vents the gas tank to the manifold. Would we need another vent of some sort if we remove this, or will it build pressure if we cap it off?
At least I'm pretty sure thats how it works
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Originally Posted by Stick only
Thats what I really would like to do anyway - take all the EVAP off. My understanding is it vents the gas tank to the manifold. Would we need another vent of some sort if we remove this, or will it build pressure if we cap it off?
I sent a description of the system to you via fax.
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Andereck - thanks for the fax - I wondered where that came from ![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
So I think its safe to assume that if the Evap was the problem we'd have a fuel smell in the back when the car is not running instead of up front. There is definitely a fuel smell near the fittings on the hoses. That leaves me checking all the hoses again, and if that does not reveal anything I'll be building some teflon hoses next week!
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So I think its safe to assume that if the Evap was the problem we'd have a fuel smell in the back when the car is not running instead of up front. There is definitely a fuel smell near the fittings on the hoses. That leaves me checking all the hoses again, and if that does not reveal anything I'll be building some teflon hoses next week!
#18
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Originally Posted by kp
Generally if you have that problem you are using the wrong fittings with the wrong hose. There are some different hose and fitting combos, aeroquip fittings with russel pro flex hose for example, that just doesnt work well. People thing the hose is seeping but its the hose end leaking a tiny bit and the steel braid wicks up the fuel (even uphill sometimes) like a brawny paper towel. Then it evaporates quick enough so it never even drips. It just takes a tiny bit of fuel on the hose to stink up your whole garage..
Always buy the hose and fittings from the same company and avoid 'bulk' off-brand hose and you will usually be OK. But its easy to mess up assembling them and having them seep as well..
Or just use the push lock stuff, not as pretty and you will have sore hands putting the fittings on but they seldom leak and its impossible to screw them up.
Always buy the hose and fittings from the same company and avoid 'bulk' off-brand hose and you will usually be OK. But its easy to mess up assembling them and having them seep as well..
Or just use the push lock stuff, not as pretty and you will have sore hands putting the fittings on but they seldom leak and its impossible to screw them up.
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Originally Posted by 2001WS6Vert
Are you saying I don't know how to put a hose together? J/K, I actually went from Aeroquip and then tried Earl's (per my buddy that sells Earl's) and then went with the Earl's teflon. Mine smelled so bad I was afraid I was going to blow the garage up when I hit the opener. I did leave a couple small sections with the old stuff, you don't notice any smell when near the car but if you put your nose up to the hose you smell gas. By the way the teflon takes different fittings so none of your old fittings can be used.
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I should add that the permeability has to due with gasses, fumes and not liquid fuel. There are actually SAE specs for emissions hoses that deal with this exact issue. Freon lines are also very much affected as a "porous" hose will lose more refrigerant over time. The pores are too small for liquid to pass, but large enough for vapor...hence the smell. I've built a number of fuel lines with Aeroquip hose and can't say I've noticed an odor, but I like the smell of fuel so who knows. I do know the Aeromotive hose is just different stuff compared to the Aeroquip AQP hose and it could be the culprit.
As 2001WS6Vert says teflon is great stuff and easy to use, I just hate the plated steel fittings.
As 2001WS6Vert says teflon is great stuff and easy to use, I just hate the plated steel fittings.