4" Rancho Lifted fuel fill problem

[lfootmatt]

Super annoying, we can only fill my boy's H3 Alpha to about 3/4 full. Otherwise it coughs, sputters, stalls and smells strong of gasoline.

Any ideas on this problem. Searched a bunch and got nothing.

Thanks,

Matt

 

[amrg]

Your symptoms (minus the filling tank thing) happened with me, was due to the fuel rail pressure sensor shorted not giving feedback to the pcm. Suggest you check the fuel rail pressure using an obd2 scanner. 58 psi off, 43-45 psi at idle

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[alrock]

Does this H3 go off road? Is the fuel tank skid plate dented inwards from rock impacts? When they replaced the rear springs, did they drop the fuel tank skid plate and maybe the fuel tank? Are there other off road impacts on the bottom where something could have been damaged?

That you are smelling gas, and with the stumbling, makes me think there's a leak somewhere in this closed system (Yeah, I should be a detective :wink. A leak would come from a loose fitting or a damaged piece. Maybe the fuel pump was damaged. Maybe a fuel line crimped. Maybe the return line.

Another pretty likely issue might be with the evap canistor having an issue, from a piece being broken or the thing clogged up. Here's a video showing the part, even if the symptoms aren't yours. It's towards the back along the passenger side frame rail, if I remember correctly. This could help you look in the right area. https://www.youtube.com/watch?v=wa2KLfc894I

 

[lfootmatt]

Once I get it back to AZ from Kansas I'll start investigating. I was thinking it was evap related. Perhaps one of the tubes is misplaced or not hooked up due to the lift.

Thanks!

Matt