1994 jaguar xjs 4.0----need to know where the vacumm line that feeds vac to cruise control eminates from--yea i know, from the engine----but where ,specifically, on the engine ?????

Jaguar Sensor, XJ6, XJ8, XJS, XK8, S-TYPE, X-TYPE, XJ40 ...

www.jagbits.com/jaguarsensor.php
FITS: 1993-1994 6.0 XJ12 AND 1989-1993 V12 XJS FROM VIN 157118 ON, 1994-1996 6.0 V12 XJS FRONT DAMPER .... LNA1622AA - MAP SENSOR ... C42166-USED - USED SENSOR COOLANT TEMPERATURE FOR FUEL INJECTION

sound like faulty fan control relay module.

hate to tell you this but it sounds like a bad or cracked coil.
take a look and see,sometimes the cracks are internal check for spark at the coil array if no spark from there theres your problem.High heat causes these type of coil systems to fail.
if you need a new one try "autopartswharehouse.com" or parts geek.com they have hard to find import parts at really good prices.good luck,Gary

next to the tank at the top of the body under neath. or on the updated version engine bay follow the fuel line and it goes into a contaner with 2 pipes on it that is the filter.

under the drivers side rear of car there are 2 quick disconnect lines you push and turn and they pop loose

remove covers in boot behind seat there are mounting brackest there hopfully not rusted take off bolts remove brackets remove filler pipe but getting it out is a carry on as its a tight fit may need to remove back seat as well

check your cruise control unit first

the engine computer needs to be reset we had the same problem with our xjs our mechanic reset the computer to fix it

Download this Document.

www.arh.ee/jaguar/Xjs_help.doc

hi mate cet the number for gmf car spares they will help general motor factors