Subject: Request for advice-XJS
Paul writes...
>>When the car sits parked for a day or two, the interior and trunk
>>develop a severe gas odor. I have looked at all of the lines and
[stuff deleted...]
Richard Responds...
>My '84 XJ-S stinks too. The local Jag wizard says that is the
>result of the pressurized and closed fuel system. That is,
>the system is closed to the atmosphere. Have you noticed the
>amount of escaping gas fumes when you fill-up from a near empty
>tank? My "s" really blows a lot of vapor out when I open the
>filler cap. The explaination is that the fuel odor is gas vapor
Amazing!!!?
Richard, Paul...I was just having this problem with my XJ6 and
traced it down to a "pressure relief" valve pre the carbon
canister. The XJS has the same fuel vapour recovery system
does it not? I don't think the tanks are supposed to pressurise
that much (according to all the Jag mechanics I talked to)
Vapour from the tanks is supposed to make it's way to the
carbon canister after going through a vapour separator. To quote
the manual "when the car is parked the vapour is absorbed by the
activated charcoal in the canister and desorbed when the engine
is running" or words to that effect. Yes the fuel vapour system is
closed but it should end up in the intake manifold not your boot/car.
See my article in this group on "XJ6's next trick, was Jaguar
on Holiday" I solved my problem you may be able to do the same..
In order of preference check...A) Pressure relief Valve, B)Canister
C) Vapour Separator (where is this in the XJS? the rear pillar
like the XJ6?)
Regards Scott.
_______________________________________________________________________________
Scott Fisher [scott@psy.uwa.oz.au] PH: Aus [61] Perth (09) Local (380 3272).
_--_|\ N
Department of Psychology / \ W + E
University of Western Australia. Perth [32S, 116E]--> *_.--._/ S
Nedlands, 6009. PERTH, W.A. v
Joy is a Jaguar XJ6 with a flat battery, a blown oil seal and an unsympathetic
wife, 9km outside of a small remote town, 3:15am on a cold wet winters morning.
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