Hello, 2007 xk, five days ago started smelling strong fuel smell in closed garage, with car not running . Can not find a leak. Removed engine intake cover, started engine, fuel rail and tubing all dry, no seepage after shutdown. Fuel filter just fwd of LR wheel, all dry and tubing dry. No performance issues. Can not find smell any where around car. Never smell anything outside or when driving. However every time car is in garage smell comes back ? any suggestions ??

 

Evaporative emissions canister

 

Doesn't hurt to look over your gas cap seal too. The evap system is the only real venting point for your tank.
From there your looking for leaks...

Vince

 

My $0.02: I had a bad gas cap (replaced under warranty) that triggered a CEL, but no smell in my garage. The emissions system is a closed loop, so I suspect that other leaks in that system would also trigger a CEL.

Since gasoline is highly volatile and evaporates quickly, leaks may be hard to spot unless the fuel contains a conspicuous dye. In addition, if you have a pinhole leak fuel loss may only occur only when the fuel pump is running and the line is under pressure. I'd check the lines at the fuel pump and around the fuel intake (injectors).

In 2009, my Lexus 2007 LS460 was recalled because the aluminum fuel rails could corrode from the inside out from using certain ethanol fuels with low water content, which could cause a pinhole that could spray raw gasoline onto a hot engine and cause a fire. Those aluminum fuel rails were replaced with stainless steel rails. Fortunately, my car never developed a fuel leak. I wanted to point this out because I don't know if Jaguar fuel lines are aluminum or stainless steel.

If you can't find the leak and fix it yourself, since you're in Alpharetta I'm sure that Nalley Jag can help. I've been very pleased with their service and highly recommend them.

Good luck!

.

 

Thanks for info , I have visually checked all you mentioned , the gas cap would be a inexpensive try ! All data mechanical sight in trouble shooting chart suggest replacing the electric purge valve . It will arrive we'd . If that does not do it , it's off to Nalley Jaguar for extended stay ! Thanks !

 

bought a emission purge valve, mounted on intake fuel rail, 15 min job ! good fix ! no more fuel smell ! And by mentioning member of jag forum and last six digits of vin, Local Dealer gave me 30% discount on part ! Go Nalley Jaguar !

 

Thanks for your update, good to see it was fixed

 

Thread resurrection, only to add data to the search for "Fuel Odors".

This odor started on my XK about two weeks ago. I tracked it down to a bad fuel pressure dampener (basically an accumulator to dampen injector pulses in the fuel rails.) Was weeping fuel as the car ran.


A basic part, one on each rail, and snaps onto into place....
Problem: Jaguar does not sell what should be a simple $100 part.... They sell you the $1000 fuel rail instead... Grrrr

Thanks Jaguar...

Needless to say.... not buying it....
Benefits of a pulse dampener have been questioned for years, as they are known to cause of engine fires when they fail.
I will pull the unit hoping the mounting seal is what failed. Might be saveable...
If the diaphragm is gone, then I may thread and seal the opening, or adapt a dampener from another car.... (Probably $50 from Ford)

... Unless of course anyone has a spare dampener laying around?

Wanted to get this out there as it is bound to start happen to others as our cars age....

Vince

 

Great post. I hate when they don't sell individual parts!

 

I'm not familiar with that component, but since Jaguar used some Ford parts I'd ask my local Ford dealer's parts department if they might have it. A long shot, but worth a try.

 

Call Injector Cleaning & Flow Testing Service - Injector Rx. It has been reported that they will cap the dampener for about $100 and several reports in the XK8 group of no adverse effects at all from a capped dampener.

 

Thanks, but not a problem. (I have a used rail on the way... Fingers crossed that it is good!)

I see older Jags use to put the dampener in-line with the cross tube between rails. Might be worth a look as well... Worst case , I'll tap and seal it myself.

BTW: RC Engineering is another recommended injector service here on the west coast for those interested.


Vince
<sniff, my kitten is sick...>

 

2007 xk convertible 70,000 miles. Strong gas odor in cockpit upon start up. Disappeared when driven. Dealer replaced fuel rail. Odor gone. So is my money. Also had to replace faulty thermostat at same time. Someone once said owning a Jaguar is like keeping a mistress. Beautiful but expensive.

 

A fuel rail is almost impossible to damage, so I would guess you also lost the dampener as well. These are nothing more than a rubber diaphragm, that flex with varying back pressure in a liquid system. (In hydraulics, we call them accumulators.) They will certainly be the first thing to go, and not the metal rail itself. Bet we start to see more of it as our cars age...

Vince
<sniff, kitty is still sick...>