Question about Jaguar XJR

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1986 jaguar xjs 12cyl, intermittent starting problems

I got car with 46k miles 2 yrs ago. Started getting intermittent starting issues. 1st thought found loose plug on half pop can size relay (i think) in center of motor near firewall. Fixed for few but problem back. Car will click, no starter turning, then an hour, 6 hours, 2 days will try and car turns over and starts. Read of ignition relay in dash, trying to find. On this site found info to look at crank relay?

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  • rcgabelmanjr Dec 29, 2008

    The solution offered was to buy a manual that explicitly says only for convertibles, not for coupes. I am a machine repairman, and manuals were the first thing I got. Again, I have intermittent starter problems. With no adjusting anything sometimes it turns over and starts, sometimes doesn't turn over. Any body see this before?

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Http://cgi.ebay.com/ebaymotors/1986-1987-1988-Jaguar-XJS-XJ-S-Convertible-Shop-Manual_W0QQcmdZViewItemQQ_trkparmsZ72Q3a1205Q7c66Q3a2Q7c65Q3a12Q7c39Q3a1Q7c240Q3a1318Q7c301Q3a1Q7c293Q3a1Q7c294Q3a50QQ_trksidZp3286Q2ec0Q2em14QQhashZitem250347226324QQitemZ250347226324QQptZMotorsQ5fManualsQ5fLiterature
First thing I would do was get the factory service manual. This will give you everything about the vehicle this is what the dealer mechanics use and is a must. You will definitely need to test a few things with a multimeter and the book walks you through all of it. If you need further assistance let me know. Please take a moment to accept and rate my solution accordingly.
Thank you,
Lee

Posted on Dec 26, 2008

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Very nice car by the way,

1) Check the manual to see if this is a known problem

2) Call up Jaguar and have a speak to them about what they might know as the problem, tell them the symptoms

3) Call up a Mobile Car Repair service like Lube Mobile and have them come put and check out the car and repair it if needed, but only if none above work!

Hope this is your Fixya! --P3NGYJ03

Posted on Dec 29, 2008

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Ollow the wire from the positive side of the battery it will lead you to the relay.

Along with the ignition switch, there's a neutral safety switch that could be bad, VATS key chip relay if you have this, and possibly fusible links near the battery. Other than that, it COULD be the starter relay. The wire from the ignition should be either purple or red at the solenoid. If there is a small black wire at the solenoid, it should come right from the battery. The VATS can definitely open this, better if you don't have the chip key when this happens. Find the procedure to wire around it, at least temporarily until you verify it is not the problem

Posted on Dec 26, 2008

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Did u check the crank sensor .let me know.

Posted on Dec 26, 2008

  • mayiassistu Dec 26, 2008

    The starter but watch the bolts break real easy. You can check the relay first. But the starters have a bad rep. It is in the solinoid or the bendix . check all connections,grounds relay wires. Good luck

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