Dell: The "what the frak it's called" under the firewall O2 sensor plugs - that's called the Evaporative Purge Valve, aka Vapor Canister Solenoid. Google part number C2S8605




On firewall just under O2 sensor plug

Confusing a bit as this image shows it in the rear by the tank =

 

Appears to be 2 areas (or maybe 2 w/same name but different part numbers) #3 & #8

https://parts.jaguarpalmbeach.com/a/...S/4735230.html

 

Sorry fat fingers #3 & #9

 

 

Dell / iownme: The evap system has 2 solenoid valves working together to reduce air pollution from fuel tank emissions:

1) Vent valve solenoid, above the fuel tank, is #9 in attached drawing, part number C2S8605. When this vent valve is open, fumes from the fuel tank escape thru the charcoal canister (which traps hydrocarbon vapors) to the atmosphere. If this valve fails in the closed position, the gas pump handle shuts off repeatedly as you fill the tank because air must exit the tank thru the fill hose, like pouring milk from a gallon jug so quickly it repeatedly 'burps' to let air in as milk pours out.

2) Purge valve solenoid, on the firewall, is #2 in the drawing, part number C2S11045. When the engine is running and warm, this valve opens to suck air and fumes thru the charcoal canister into the engine, where the fumes are burned. This 'regenerates' the charcoal so it's ready again to absorb more fuel tank fumes.

Here's a video that explains how these two solenoid valves work together to reduce air pollution from fuel tanks. It's not an X-Type, but the concept is similar on today's cars.

 

Guys, is there any chance this system is exactly the same on the X308?

I've had an identical issue in my 2002 XJR-100 since I bought it. I did replace the Vent Valve Solenoid (along the frame rail under the fuel tank) with a used one - and the 2 charcoal canisters, and blew out the lines with compressed air - but this did not fixed the problem. Is replacing the Purge Valve under the hood my next step, or should I stop mucking around and replace the VVS with a brand new unit?

Thanks in advance. David

 

@kidrock = this TSB to find problem is from your model forum =

 

do you guys get a fuel smell while dring and any error codes

 

hi Dell, thanks for posting that. Been through the checklist on this TSB several times with no luck.

Just wondering if the system is the same on the X-type.

Also, no fuel smell or anything while driving.

Cheers

 

This works if the solenoid is stuck OPEN. If it's stuck shut you have to replace the unit.
Cheers,
PJH