1989 Jaguar XJS 4.0 - Answered Questions & Fixed issues

easier to go to windscreen replacement outlet cheaper than buying tools thy will do it in minutes

If they didn't go up the engine would quickly stall out due to a lean condition.

open glove box, read the users guide if lost it is free from JAG dealer. it cover all that. and yes all cars on earth , the battery can be changed with no damage done. for sure,100% but you need to read the manual first. and remove NEG LUG first first off , last on. cars with rear batteries have special rules for JUMPS do not fail to read the manual or damage will happen. cars with rear battery have a way to open trunk with battery dead, (all do) some are behind rear seat access others a cable latch lever to trunk lock. SOME HAVE HOOD UP , JUMPER POLES best is ask here, the manuals are hens teeth now. users. or buy one on line from scalpers. https://www.jaguarforum.com/search/47893/?q=XJS+BATTERY+DEAD+HELP&o=relevance

As you know, this is not an inexpensive car..PLEASE take this to a Qualified Professional..it will be $$$$$.. make sure they guarantee/warranty their work and for how long..(HE IS WORTH IT!!)

What a message?

https://www.google.com/search?q=Need+to+no+where+mass+air+sensor+located+on+a+2002+cavalier+2.2+motor&biw=1363&bih=650&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwidypiQ58LQAhXJ7iYKHevTAvsQsAQIHQ#tbm=isch&q=Where+a+tranmission+modulator+go+on+a+1985+jaguar+xjs+General+motors Hope this helps

Check the fuel filter(s). Your long drive may have shaken dirt or old fuel gunk ("varnish") loose and plugged the filter most of the way. Enough fuel gets by to start the engine, but then it starves when you put it under load.

INTERMITTENT problems are one of the hardest type to fix online... you'll just either have to bite the bullet and take it to a competent shop it's a Jag, be prepared to fork $$$$ also, goto Jaguar owners forums so you can make a dialoge instead of one-answer sites like this i'd start with checking the ground circuits, beginning at the battery any check engine lights/ scan the car's ecm/ecu for any trouble codes to help you look for the particular circuit to trace the problem

Some of the most common problems I encountered with my 1984 V12 (most of which you will find on yours):

1. Electrical wiring faults, especially poor ground connections (thanks to Lucas Electric);
2. Misadjustment of the two throttle butterflies (tricky adjustment for mechanics who do not understand it);
3. Engine computer failure. THIS HAPPENS 100% OF THE TIME WHEN THE CAR IS JUMP-STARTED USING A STANDARD JUMP START CART!!! DO NOT LET ANYONE JUMP START YOUR CAR USING AN A/C POWERED JUMP START CART.
4. Failure of the fuel injector lines causing serious engine fires;
5. Poor fuel economy, often under 10 m.p.g. in-town (nothing you can do about this);
6. Rough idle caused by bad spark plug wires, followed by failure of the ignition coil;
7. Starter failure (annoying and happens without warning);
8. Leaky valve cover gaskets;
9. Failure of the plastic cooling fan (it flies apart when it gets old... replace with a non-plastic fan if possible);
10. Lack of performance due to the car never being "opened up." (You need to drive it hard & fast sometimes.)

If your reservoir is full then your power steering pump is most likely bad and needs replaced

Most likely cause is a O2 sensor but which one i couldnt tell you ,you cannot use a code r eader as no OBDII but you test them with a volt meter ,but i would need to know if its a three wire one or a four wire one the wire the same colour should read 12v ,unplug the connection then run a continuety test on the sensor ,now connect the sensor and if a three wire one use the other colour wire and it should read .270v to about .700v as the engine is brought up to 2500 rpm on a four wire one then you read across the two different coloured ones if all the readings are ok then replace the cats of which their are two .the test plug is in the boot behind the carpet at the top left hand side but its a special connection ,i do not have one myself although i have a 94 model of this car with a 4.0 engine ,its my sunday car for special occasions as try paying 10 dollars a gallon for fuel ?? hence my normal car is a ford escort diesel

-Check for leaking air. Good luck Mai

The brake pads may be rusted onto the brake disc, or the car is very heavy. Also, since it has been sitting there, you have flat spots on your tires, so where your tire should be round, nope, it has on flat edge where is has been sitting on all four tires, causing it unable to be moved, pump it up with a electirc air pump.

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.

All european cars have experienced at one time or another a ground issue at the fuse box, locate the fuse breaker block and check for corrosion and electrolysis, also check your battery ground at the battery as well as the chassis. Usually when only a few items are affected by electrical issues the groung is the problem.Hope this helps.

google it and select images

Well im a Boy and know nothing about cars and just had a nightmare with my wipers. Went to 3 garages yesterday who checked the motor and fuses and they were fine. They all said it was the wiper relay which I have had to order from Benfield motors-they are now selling the parts for renault...they didnt have a clue to be honest! The lads in Kwik Fit have been amazing and very helpful! Hope this helps. I am waiting for my relay to be delivered...so fingers crossed!

if pump is not working ck relay in dash or trunk behind right where pump cover is if no power to pump if power to connector pull pump re hook and ck operation replacement pump may be bad. i have gotten bad pumps before.and have also wired some replacement pumps wrong.

dextron II is ok as for a leak stopper then yes but only if its leaking

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There are no available free downloadable manual over the internet since this is a Jaguar vehicle. There is a site who sells the manual. Please click here.

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