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Richard
Richard, Jaguar Technician
Category: Jaguar
Satisfied Customers: 15555
Experience:  12 years at a Ford/Lincoln Mercury and Jaguar dealer as technician and shop foreman.
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1997 Jaguar XJ6 When the car is cold, all is fine. But after

Customer Question

1997 Jaguar XJ6
When the car is cold, all is fine. But after 15-20 minutes of driving, the instrument cluster will cycle on and off. I have swapped out clusters ECM & checked grounds. Any ideas?
Submitted: 1 year ago.
Category: Jaguar
Expert:  Richard replied 1 year ago.

When you mean cluster will cycle on and off you mean the gauges and lights? Do you feel any issues driving like an engine misfire?

Customer: replied 1 year ago.
the gauges and lights will cycle on & off. There is no engine miss and all of the ignition coils are 1 (one) year old. I have also disconnected the alternator dump switch.
Customer: replied 1 year ago.
the gauges and lights will cycle on & off. There is no engine miss and all of the ignition coils are 1 (one) year old. I have also disconnected the alternator dump switch. Do you need any more information?
Customer: replied 1 year ago.
The dash problem was because the ignition coil was spiking but had no engine miss. So my question has been answered.
Expert:  Richard replied 1 year ago.

Yes figured it was a coil. Usually you feel a missfire just before this happens. Thanks.