Troubleshooting the coil

Asked by May 18, 2014 at 10:56 AM about the 1990 Jeep Grand Wagoneer 4 Dr STD 4WD SUV

Question type: Maintenance & Repair

I am not getting any spark to the plugs.  I tried putting a spark plug directly to the coil and still no spark.  Any suggestions?

3 Answers

By the way... this is a new coil and neither the old nor the new coil produces spark. I've checked the wiring and can't find a short or open circuit.

290

Have you checked to make sure you have voltage to the ignition coil connector? That's the first place to start. If you do, make sure you check the ground circuit too.

2,765

First: you did ground the spark plug when putting it in the coil right??? The spark plug must be grounded to spark!! ok next: The ignition modules goes bad on these all the times, what would you expect from a ford design lol. The module is a box on the driver side inner fender towards the rear side near the firewall, should have 2 plug ins, one with 2 wires and one with 4 wires. 2nd cause could be a bad ignition pickup, part inside the distributor under the rotor, this tells the module which position the engine is in, you should be able to see the "teeth" under the rotor that the pickup reads.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Grand Wagoneer

Looking for a Used Grand Wagoneer in your area?

CarGurus has 47 nationwide Grand Wagoneer listings and the tools to find you a great deal.

ZIP:

Search Jeep Grand Wagoneer Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Jeep Grand Wagoneer Experts

#1 Kurt Burton
Kurt Burton
Reputation 800
#2 Tom Demyan
Tom Demyan
Reputation 90
#3 tennisshoes
tennisshoes
Reputation 60
View All

Related Models For Sale

Used Jeep Wagoneer
12 listings
Used Jeep Cherokee
305 Great Deals out of 53,909 listings starting at $2,495
Used Jeep Wrangler
500 Great Deals out of 18,399 listings starting at $2,500
Used Toyota Land Cruiser
18 Great Deals out of 1,190 listings starting at $4,095
Used Toyota 4Runner
359 Great Deals out of 20,566 listings starting at $2,495
Used Ford F-150
3,001 Great Deals out of 207,338 listings starting at $1,000
Used Ford Bronco
183 listings