No spark coil number three

TONY TONY TONY

MEMBER
1997 MITSUBISHI TRITON
3.0L
6 CYL
4WD
MANUAL
133,000 MILES

Coil number three no spark, but tests okay. Changed coil and ignition module even though they tested okay. Got 12 volt crank and cam sensor test okay. What can cause no spark at number three coil three and six cylinders? Thanks

Monday, June 10th, 2019 AT 4:06 AM

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
47,526 POSTS

This will be bad wiring or bad ECM. To confirm here is a guide to help test the trigger to the coil to confirm the failure:

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

Please run down this guide and report back.