Smells like unburnt fuel
 

So today I let the car go past E, filled the car up and now I've been smelling unburnt fuel for 20 miles and hasn't gone away yet.

I have an aftermarket fuelpump and injectors, didn't smell any fuel from the engine bay but smelling fuel near the rear. Anyone's guess?

make sure the gas cap is on, if it is turn it counter clockwise a hair until you feel the cap lid loosen not the cap itself. Or remove the cap slowly to remove any pressure. Check all around the fuel system for drips.

It could be an issue with your evap system. Is the CEL on? Have you checked codes?

CEL's not on

Oh, maybe it was soo thirsty, that when you filled it, some gas spilt over the filler tube and that's what you're smelling.

I wouldn't worry about it unless the smell persists or you get a light...:)


humfrz

<_< I feel like I'm being trolled here

I'm sorry you feel that way. That's not my intent ...... sometimes, I just joke around a bit ...... ;)

Please let me explain, if you overfilled the tank, either by forcing fill past the click off on the nozzle or the pump just malfunctions and doesn't shut off ...... some fuel can slip past the filler tube into the fender well area. Gasoline trapped in there can take a while to evaporate and can smell for some time, especially in colder weather.

PS - I don't troll people ...... sometimes I pull their leg or yank their chain .... but do not troll ..... :)


humfrz

Ah, gotcha. I'll update you to see if the smell goes away I got a diffuser stuck down there so kinda hard to check if fuel is leaking around the pump.

smell the fuel again, this time I see fuel leaking rear driver side

a little information about the car, I do have an aftermarket fuel pump and injectors.

Check fuel lines, injectors connection and fuel pump while engine running

all fine, I just turned my car on without starting it and noticed a huge ass leak like a liter of fuel dripping out of my car as I moved it down the hill.

Somehow I'm convinced that all is NOT fine... find that leak! And be very careful.

My dad used to find gas leak while smoking, talk about safety

checked all the lines, also brought it to toyota as well to check, couldn't find a leak but they could definitely unburnt fuel. The leak only happens on cold starts and right after I fill up my tank.

You mentioned an aftermarket fuel pump; how is it installed?

I'd start looking there; something like it spews fuel out a breather if the tank level is too high, or something - I'm guessing without knowing much about the fueling setup in the car, let alone what you have.

csg installed the pump, already gave David a holler waiting for a response

Fuel pump runs when you turn on the ignition. I believe it only shuts off after ecu detects target fuel pressure on the low pressure rail. If you have a leak [maybe] the pump just keeps going. The access panel is glued on underneath the left rear seat.

Or maybe it's a slow leak. A liter?

edit: Clarified intent to suggest possibility, not to state as fact. What the hell do I know?

Huffing gas while smoking cigarettes ....... ahhhh, the good old days ...... :D


humfrz

check the hoses around the evap cannister. It could be the rollover valve too. I'm betting that when the new fueling system was put in they missed a hose or the rollover valve was stuck open.

Crazy question- when you fuel up, does the fuel fill click off (when the tank is full) like it did before the new fuel pump was installed?

Yeah it clicks

update now happens every morning upon startup leaves puddle of fuel. Tried contacting csg but too slow to respond. Brought it to a Toyota dealership and they can't find a problem. Anyone know the cost to fix a gasket for the fuel tank? if that is the case.

every morning and you're still driving it, huh? after a month? we're talking about gasoline right? like you're car's leaking gas and you're still driving it every day? I can't possibly be understanding this correctly.

What's your point?

Only thing I can suggest is to have someone raise the car up and get the leak to occur, then just trace it to it's exact location and diagnose from there. From everything you've said I want to say it's the tank itself but it's mainly covered by protection pans, which means that if it really is the tank then it's a much worse leak than it looks like because the unburned fuel is pooling inside the pan and slowly leaking through. That could explain why you're always smelling unburned fuel in the back. That still wouldn't explain why the leaking only occurs at specific times and isn't constant, though.

Perhaps the tank is leaking constantly. Is your fuel gauge dropping suddenly between every drive? Is there always a pool of fuel when you start up and move? Or is it only when you start up in the morning and fill up the tank like you said?

He has had it checked by a Toyota dealer

He never said that they looked at the tank, though. If the leak only happens at the specific times he mentioned then Toyota wouldn't have seen it. The fact that he hasn't mentioned the exact spot where the fuel is leaking means that neither he nor Toyota have found it yet.

He never said that they didn't look at the tank either.

I only get a leak during start up and before it warms up small drops of gas til it's completely warmed.

Sure it's not condensation from your exhaust system

Is the fuel pump recently installed? If so, then it makes sense its leaking when you fill it up because it is not sealed correctly.

Wouldn't you likely smell it inside the car then

my point is if I understand the situation correctly and the car is leaking that much gas the owner shouldn't be driving it until it was fixed.

Commas and capitalisation?

The owner is clearly clueless and/or click bait and your jumping into with your excruciatingly bad grammar.

How is that helping things?

Your uncalled-for rudeness isn't helping things, that's for sure.

I guess I could have used a comma, but I'm not sure how to apply capitalisation.

Unfortunately, I'm also "jumping into" and I'm not sure what to do with your subject-less preposition.

:lol:

:slap: ........ maybe THAT will help YOU ...... :D


humfrz

I'll just leave this here.

http://www.ft86club.com/forums/attac...3&d=1484658761

What's the story behind this poor soul? 😢

Sent from my Pixel using Tapatalk

Dunno. Pic's from a troll thread. Seemed apropos to this real thread.

That's how your car looks when the sheriff rescues it from the speed shop.