Strong fuel smell in LC100

[mmcolorado]

I have a 2005 LC100 with 299k miles. I drove it from Aspen to Denver last week and when I stopped I noticed a very strong fuel smell emanating from the vehicle. I don't have any codes and I am concerned it may be a fuel leak. I don't normally smell fuel when I drive it around town but it seems to occur on longer highway journeys where I am pushing the old girl up a mountain. I would appreciate any thoughts from this group.

 

[Trunk Monkey]

Dig around for charcoal canister threads, could be that.

 

[OEMGUY0720]

Higher altitude effect on the:
• Fuel pump.
• Pressure inside the fuel tank.
• Higher exhaust temps which leads to higher fuel temps in the tank = fuel boiling.
• Gas cap slowly expelling pressure from the tank.

 

[Frantz Sainte]

I am sorry for changing the subject. I am having constant Vehicle Stability Control buzz whenever I am in a curved road. Changed my wheel speed sensor on BOTH sides, no change. Any suggestions, pease?

 

[joshAUST]

I've been noticing the smell of petrol intermittently in my FZJ105.
The other night, after a highway drive and then I was sitting still for about 10 minutes stationary with the engine running, when I again smelt it very strongly.
I hopped out and had a look under the car and saw a puddle.

I reversed back away from it, checked it - petrol, and then popped the bonnet.
At the back of the fuel rail, right near the firewall, there is a fuel pressure pulsation damper, and there was a LOT of petrol leaking out of it!
It must be intermittent though, as when I checked later, with the engine up to temp, and it didn't appear to be leaking at all, and there was no smell.

I've just received a genuine replacement for it and will fit it today.
The part for the FZJ105 is 23207-46010. An alternative part number is 23207-20011, which is the one I found on Ebay.com.au.
Price was $119 AUD inc. express shipping.
I could of got it cheaper overseas from Partsouq, for example, but I didn't want to wait.
The local Toyota Co-op wanted $180ish with a weeks shipping.

I realise you must have the 2UZ-Fe engine, being a petrol 100 series, but they also have a fuel damper at the back of the fuel rail, so it could be worth checking that.
The damper part number for a UZJ100R is 23270-50010, with alternatives 23270-50012, 23270-73010 and 23270-50011.
The gasket part number is 2323241081.
There is also a metal gasket which is 90430-12026, (alternative 90430-T0003).

It only takes a spanner to get it out.
DO NOT TOUCH the phillips head screw under the plastic cover thingy - its not meant to be adjusted.
This is obviously a serious fire hazard, hence why I thought I'd post this information.
While it might just need tightening, the intermittent-ness of it means I would never be completely sure its sealed, without replacing it, and, given its over 20 years old, is probably due for a change.
Hope this helps.

EDITED: Installed new fuel damper - It was so hard to get out it certainly wasn't loose.
Its a bit awkward to get to it. I found using a 22mm open crow foot socket the easiest method to get it.
And be careful not to lose either of the TWO washer/gasket things - one between the fuel rail and the fuel inlet line, and the other between the inlet line and the damper.
No more leaks or smells of raw petrol.

 

[Dmenk87]

I've been noticing the smell of petrol intermittently in my FZJ105.
The other night, after a highway drive and then I was sitting still for about 10 minutes stationary with the engine running, when I again smelt it very strongly.
I hopped out and had a look under the car and saw a puddle.

I reversed back away from it, checked it - petrol, and then popped the bonnet.
At the back of the fuel rail, right near the firewall, there is a fuel pressure pulsation damper, and there was a LOT of petrol leaking out of it!
It must be intermittent though, as when I checked later, with the engine up to temp, and it didn't appear to be leaking at all, and there was no smell.

I've just received a genuine replacement for it and will fit it today.
The part for the FZJ105 is 23207-46010. An alternative part number is 23207-20011, which is the one I found on Ebay.com.au.
Price was $119 AUD inc. express shipping.
I could of got it cheaper overseas from Partsouq, for example, but I didn't want to wait.
The local Toyota Co-op wanted $180ish with a weeks shipping.

I realise you must have the 2UZ-Fe engine, being a petrol 100 series, but they also have a fuel damper at the back of the fuel rail, so it could be worth checking that.
The damper part number for a UZJ100R is 23270-50010, with alternatives 23270-50012, 23270-73010 and 23270-50011.
The gasket part number is 2323241081.
There is also a metal gasket which is 90430-12026, (alternative 90430-T0003).

It only takes a spanner to get it out.
DO NOT TOUCH the phillips head screw under the plastic cover thingy - its not meant to be adjusted.
This is obviously a serious fire hazard, hence why I thought I'd post this information.
While it might just need tightening, the intermittent-ness of it means I would never be completely sure its sealed, without replacing it, and, given its over 20 years old, is probably due for a change.
Hope this helps.

EDITED: Installed new fuel damper - It was so hard to get out it certainly wasn't loose.
Its a bit awkward to get to it. I found using a 22mm open crow foot socket the easiest method to get it.
And be careful not to lose either of the TWO washer/gasket things - one between the fuel rail and the fuel inlet line, and the other between the inlet line and the damper.
No more leaks or smells of raw petrol.

Can you tell me the order of the washers? I think I may have reinstalled mine incorrectly and I am getting fuel smell in my engine bay. There is a circle gasket and then the gasket with 4 tabs. If you happen to remember the order they get installed that would be amazing.