Top 20 1986 Jaguar XJ6 Questions & Answers

The first thing you should do is check the basics. When was it last given a full service? Make sure the air filter is clean. Is the fuel getting to all the cylinders? Are all the cylinders getting a spark? (I'm assuming it is a gasoline motor). If there are any warning lights on the dashboard GET THEM CHECKED BY A GOOD MECHANIC!

Remove as much fuel from tank using a syphon or plastic pump. Remove tank from car, Tip it upside down to drain remaining fuel. DO NOT WELD the tank if it is leaking or the remaining fuel fumes will explode.

The best way is to take the tank out completely to clean , as you have to make sure that it is 100% clean so that the problem is solved completely. If not cleaned properly it will make you a lot of problems

Looks like the carb's need Tuning / Balance, but first start with compression test, plugs and leads 1986 prob still on points? check condenser, then do the carb's

most likely it may be a bad valve or maybe the module ..could be dirty transmission fluid..

run fault codes and look for cam/crank position sensors fault.

take Q tip and clean the tip of the injector with alcohale

You should have a fuse box that pivots down from under the dash. There are two or three harness plugs in the back.

No such part name.

The delay timer is a small electronic circuit in the light unit. Open it up and see if you can fix it.

The bendex on the starter is staying engaged, replace the starter

check for a starter motor or solenoid failure. Also check for a ground wire,for no good contact. also is possible the ignition switch for not sending a message for crank start.Also check for any fuse or relay.

Its most likely the smog pump or air pump same thing, alot of people used to disconnect it or when the belt breaks or it siezed up they would not replace it until it had to be smogged.It has to be hooked up and working to pass smog.

I'm a little lost here.You normally get the high and low fittings when you buy a kit. The original system had the same size fitting for both, but the kit comes with two different sizes for R134 gauges. You may have to look for the high side fitting by itself.How do you know the evap is leaking, or is that just a guess ?As long as the high side fitting is closed, you should be able to charge the low side but you won't know when it is full without the high side gauge.I would try to find the high side adapter and get the gauges hooked up before you proceed.

short man its a short power to ground need wireing diagrams and trace it out sorry i cant be of more help but at least you know the right system to look at lol

not shure about Jags but sounds like a lamda gas sensor problem i had with a vauxhall

The most likely thing would be air in the lines. Try bleeding the system real good, and you should get a good pedal.

Hello chinds, did you replace the fuel filter also, if you did not you should.
The fuel pressure will normally be about 32 psi at idle. It will fluctuate as a function of engine vacuum. It will increase under acceleration and decrease under deceleration. When you shut off the engine, the fuel pressure should hold around 30 psi. It's pretty normal for it to drop off very slowly but should maintain a pretty good pressure at least until the engine cools off. If it falls off immediately, your fuel pressure regulator or the non return (check) valve in the trunk could be a problem. If your fuel pressure does drop off, you can remove the air cleaner and turn on the key then when you reach inside the Air Flow Meter and push the flap open, a set of contacts will close in the Air Flow Meter causing the fuel pump to run. This will pressure up the system. As you release the Air Flow Meter flap, clamp off the feed line to your fuel pressure gauge. If the pressure still falls off, you need a fuel pressure regulator. If it doesn't, you need a non return valve.

I hope this helps, & good luck with your Jag.

If they all went dark at one time, it is not likely a bulb issue per se. I would check to see if there is a fuse that governs the instrument panel lights and, if so, check to see if it is in good shape. The problem that you are experiencing may very well just be as simple as a fuse... of course, it may not be; but starting with checking something simple is usually the best place to start. All the best to you with this...