Question about 1986 Jaguar XJ6

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Starts but will not turn over

My 1986 Jaguar XJ6 will start but not run. The engine tries to start but it does not turn over, I was wondering if it could be a fault in the electrical or a problem in the vacuum lines.

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Check the wires on the coil, try switching them, i had this exact problem. the wires were on correct as of the diagram but they were actually backwards. its an easy fix if that is the problem, the coin is right on top the engine.

Posted on Oct 13, 2009

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If its not getting spark, try the relay. Its located under the hood, passenger side, by the firewall. Thats what was wrong with my 94'!

Posted on Mar 22, 2009

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If your car ever has a problem turning over but not cranking, think of the 3 main things that make an engine run. Fuel, Air, Spark. If your timing belt is shredded that would be a good cause of not getting it to start. check to see if you have spark going into your spark plugs, you can do this by taking out the spark plug boot and sticking a screw driver in it and laying ontop your engine. When you crank it you should see electrical charges surge the screwdriver. For fuel you would need to take out one of your injectors (still on the fuel rail) and see if fuel comes out. If so you are getting fuel. More than likely you are getting air into your system or else you would not have any compression to crank. But in the instance that it has a sensor to read the air this might be the case. I hope this was a little helpful and if you need mroe assistance please let me know.

Posted on Mar 02, 2009

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