Could a bad ground cause an ignition coil to fail

VKTR

MEMBER
2003 LAND ROVER DISCOVERY 2
4.6L
V8
AWD
AUTOMATIC
130,000 MILES

The coil was sparking to the body and there was not any bolts on the coil bracket for the ground. Could this cause the coil to fail?

Tuesday, September 19th, 2017 AT 5:11 PM

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
42,877 POSTS

Yep, the coil can overload and heat up causing the coil to fail. Here is a video and some diagrams (Below) that will help you get the job done.

https://youtu.be/iDgXwKA-IIc

Here is a guide that can help you test the coil.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Please let us know what you find.

Cheers, Ken

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