1989 Jaguar XJS justs shuts off while driving

1989 JAGUAR XJS
140,000 MILES • V12 • FWD • AUTOMATIC
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DAVEQWERTY
  • MEMBER
  • 1 POST
My XJ-S Covertible just shuts off intermittently while driving. No engine cough or sputter, no dash lights come on. It acts like I just reached up and turned the key off. I coast to the side of the road, put it in park and it starts right up and runs fine. Currently installing a new ignition switch to see if that solves the problem. Any thoughts on other items to look at?

[img:a87508e154]http://www.2carpros.com/forum/automotive_pictures/524052_JAG_1989_1.jpg[/img:a87508e154]
May 4, 2010 at 7:18 AM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Hi there,

Thank you for the donation,

I feel that this is certainly an ignition based problem, often a faulty distributor or DFI module is the cause, often they can over heat and cut out, this is just like turning off the key, and when they cool a little they will work again, you may get a code if you get a scan done, remembering that you don't always get a fault light with all set codes.

mark (mhpautos)
May 4, 2010 at 7:29 PM
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