Get a flat screw driver, put it on the bottom side of the clamp and hold it so the clamp doesnt move away when you push the screw driver hard into it when doing it up.
Maybe. Just finished replacing the hose that connects to the hard pipe that supplies the filter. It had a cut from the hose clamp, didn't appear to be leaking but best replaced. Hard sucker to get to (no big surprise) as It runs underneath the battery. I will take it out for a run in the morning.
Check the filler neck assembly from behind the filler flap and onto the tank. Then look to replace the foam seals under the access panels in the boot. Any vapor that escapes the filler neck assy, swirls under the body and penetrates the cabin via these covers. When these cars were imported they have an adapter glued into the neck to suit the aussie petrol fillers. This glue or silicone usually degrades with the fuel vapor, falls away and allows for the vapor to escape. If you've checked everything else and there is no faults, im betting on this situation. I chased this same drama youve got many years ago, to find it was this. The foam seal i just got something of similar size from clarke rubber and used it. I preferred the high density foam. You can get it with an adhesive.
I still think my problem is under the bonnet due to the fact that the fumes are rev related and also they come out cold and hit you in the face from the A/C vent, if the seals around the tank and filler were failing I should be able to detect the fumes from the rear of the cab and outside around the filler area especially when the day heats up and the fumes in the tank expand, in fact there's always a decent amount of tank pressure build up when I release the filler cap. I will not leave any stone un-turned tho so I will have a close look around the filler tube connections. Cheers
Think I have worked out the cause. CAN ANYONE VERIFY FOR ME, should there be a rubber seal underneath the bonnet, above the cowl on the passenger side to stop engine smells entering the air vents?. If so looks like the painters lost or just left it off when my car was re-sprayed.
Replace every fuel hose under the bonnet, check your fuel dampener and fpr are not leaking, check your injector o-rings even check the fuel filter isn't leaking. There should be no fuel smell coming from the engine bay at all! Edit: Be sure to use high pressure EFI hose.
Thanks p5yk3r, I no longer have a fuel dampener due to upgrades & the hoses have been replaced some 8 months ago & are all dry + no smell at clamps, I can't smell any fuel when standing under the bonnet revving the motor its only during driving and around 2000 revs. I have just found a rubber seal that attaches to the bonnet above the L/H air vent is missing, car has recently been re-sprayed and I'm guessing the panel shop has lost or just forgotten to put it back on, I am confident this will fix the problem given the fact the smell is coming through the A/C vent.
There shouldn't be any fuel odour emanating from the engine compartment, regardless of whether the rubber seal at the rear of the bonnet is intact or not. If you are serious about finding the source of the fuel odour. Use a gas analyser & set it on the HC (Hydro Carbon) setting.
or just replace all fuel hoses. it's a tedius job but if you're serious about fixing it, at least fix the obvious culprits first.
All fuel hoses have been replaced less than 8 months ago, It still doesn't explain why I can't smell the fuel with head under the bonnet and revving the guts out of the motor, why only when I'm driving and why only when I reach around 2000 revs. If it was a simple fuel leak I should be able to smell it whilst the engine is running!
A few things that might help get this sorted. So the hoses were all replaced recently. Does that include the two under the battery tray on the passenger side. They are often forgotten and I note that nobody has mentioned them in this instance. Awkward to get to and will cause exactly the problem you describe. Secondly, you'll struggle to smell fuel vapour with the engine running even if you're right on top of it. It's getting blown away by the radiator fan aided by the heat coming off the engine ! You'd have a better chance with a cold engine. Simply turn the ignition to the on position...don't start the engine. The fuel pump will prime the lines and the pressure might show up a leak. Cold fuel won't evaporate so quickly and your nose will stand a better chance of sniffing it out. Cheers, Andy.
Sorry, missed the fact you've found the hoses under the battery. Try the cold engine though. Hope it turns up something. Cheers.
regardless of a seal being there or not, an engine should not have raw fuel fumes at all, raw fuel fumes obviously indicate leakage, as Sanouske stated the fuel filler cap is the most likely culprit, ive got the same smells happening, although mine doesnt have a proper adaptor as such, its literally cut off another car and siliconed in.
Re: Sealant Sealants such as "Silastic" etc. are something you DO NOT want to use on a fuel system. The fuel can cause the sealant to dissolve.
Thanks AG300zx, I can't see how this is the issue as the smell is coming through the A/C vent and has a coldness about it, if I shut down the A/C & fan the smell is hardly noticeable
