How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Ron Your Own Question
Ron
Ron, ASE Certified Technician
Category: Jeep
Satisfied Customers: 33438
Experience:  34 year working in the automotive field as a Tech.
7276279
Type Your Jeep Question Here...
Ron is online now
A new question is answered every 9 seconds

It has no spark. replaced coil and still no spark. Starter

Customer Question

It has no spark. replaced coil and still no spark.
JA: Has the starter or ignition module been replaced?
Customer: Starter was replaced a few days before the coil was. It ran fine for about 2 days. Shut it down and would not restart.
JA: What is the model/year of your Jeep?
Customer: 1990 jeep wrangler yj
JA: Are you fixing your Wrangler yourself? What have you tried so far?
Customer: yes. just changed the coil. cannot locate ign. mod. starter was changed by another person.
JA: Anything else you want the mechanic to know before I connect you?
Customer: how to test ign. mod. would be helpful.
Submitted: 1 month ago.
Category: Jeep
Expert:  Ron replied 1 month ago.

Hello. My name is ***** ***** I am happy to assist you today. Give me just a moment to review your post, and I'll be right back with the help you need.

Expert:  Ron replied 1 month ago.

What size engine are you working on , the 2.5 or the 4.2?

Customer: replied 1 month ago.
4.2
Expert:  Ron replied 1 month ago.

Thank you for that, the lack of spark can be caused by a failure of any of the following,

  • Ignition Coil
  • Ignition Module
  • Pick-Up Coil

    Are you able to do some testing?
Customer: replied 1 month ago.
Customer: replied 1 month ago.
coil was replaced
Expert:  Ron replied 1 month ago.

Okay since the coil is new I would start with checking the ignition module and the Pick up. See the steps to do this in the link below. Run these steps and see if this will help you narrow it down.

https://dl.dropboxusercontent.com/u/104923897/No%20spark%20Oct%2028.pdf