Power to new coil but no spark

210,000 MILES • 4.2L • V6 • 4WD • AUTOMATIC
Avatar
RODD ZEILER
  • MEMBER
  • 1 POST
I have replaced ignition module , cap rotor, wires and coil. All the fuses look good. I ran the test listed in the shop manual and all power is to the coil. However no matter what I do there is no power (spark) coming from the coil. Is there anything else I can try or test? I have been at this for a month now. any help would be appreciated.
Oct 1, 2019 at 11:20 PM
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Welcome to 2CarPros.

Because of the model year, my technical info is very limited. However, I know there is a crankshaft position sensor on the vehicle. Have you checked that? Here is some info related to this type of sensor. Take a look.

https://www.2carpros.com/articles/how-a-crank-shaft-angle-sensor-works

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Also, you indicated the engine size as a 4.2L V6. They made a V6, but the 4.2 is a V8/ Please let me know.

Joe
Oct 3, 2019 at 10:45 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle