everytime it get's hot outside (100+) My XJ pukes it's Ignition coil

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Jul 6, 2012 | 06:02 PM

ericfx1984

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CF Veteran

Joined: Jan 2011

Posts: 2,251

Likes: 1

From: Missouri

Year: 1996

Model: Cherokee

Engine: 4.0HO

everytime it get's hot outside (100+) My XJ pukes it's Ignition coil

so last year on 07/06/2011 my XJ died on the highway, replacing the ignition coil fixed this.

today on 7/6/2012 the ignition coil went out again... it was 105F outside...

so why does this keep happening, and WHAT can be done about it?

Jul 6, 2012 | 06:07 PM

djb383

CF Veteran

Joined: Nov 2009

Posts: 8,172

Likes: 17

From: The Republic of TEXAS

Year: 1998

Model: Cherokee

Engine: 4.0L HO

Coincidental.

Jul 6, 2012 | 06:18 PM

bighouts5591

CF Veteran

Joined: Nov 2011

Posts: 1,469

Likes: 0

From: State College, PA

Year: 1995

Model: Cherokee

Engine: 4.0 I6

stop driving your XJ on July 6th

Jul 6, 2012 | 06:55 PM

bullettooth2008

CF Veteran

Joined: Apr 2012

Posts: 2,218

Likes: 0

From: Essex England

Year: 1997

Model: Cherokee

Engine: 2.5 td

drive it in England you wont get that problem,dont knock it.

Jul 6, 2012 | 07:01 PM

tjwalker

CF Veteran

Joined: Nov 2010

Posts: 5,841

Likes: 117

From: In the middle of Minnesota!

Year: 1999

Model: Cherokee

Engine: 4.0

I agree that this is likely a bizarre coincidence. It happens.

Ignition coils are generally pretty hardy but they can fail. Replace it with a quality OEM style coil and you are not likely to have another fail.

I would NOT recommend an MSD or ACCEL coil (are you using either of these?) as they are linked to premature failure and really don't provide you with anything more than a standard coil can for a stock 4.0 engine.

Last edited by tjwalker; Jul 6, 2012 at 07:08 PM.