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No spark at plugs

Tiny
LEWXT
  • MEMBER
  • 1990 FORD FALCON
  • 3.9L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 330,000 MILES
Hi, My 1990 ea Ford Falcon has lost spark. Have replaced coil and D Module. Cap and Rotor looks fine. What would the next step be? I cranked it with a spark plug on the coil lead earthing the spark plug and it only sparks once. Should it have a constant amount of spark?

I don't know much about these motors but it's a 3.9 CPI.

Any help will be appreciated!
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Friday, March 13th, 2020 AT 8:23 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi,

This vehicle isn't offered in the US, so my technical information is very limited. Does it have a crankshaft position sensor? Have you checked to make sure engine grounds are good?

Take a look through these links:

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

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

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

____________________

Here are a few links you may find helpful:

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

https://www.2carpros.com/articles/car-cranks-but-wont-start

Let me know if this helps or if you have other questions.

Joe
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Friday, March 13th, 2020 AT 10:46 PM
Tiny
LEWXT
  • MEMBER
  • 5 POSTS
Cheers for the reply, yes it does. Today I got a second hand distributor setup so I will put all of that in when I pulled the dizzy cap off the hall sensor wires looked rough. So I will try this. I'm hoping it is the problem.
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Saturday, March 14th, 2020 AT 9:15 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Sounds like a plan. I believe the part you are referring to is the pick up coil. If bad, you will lose spark.

Let me know what you find.

Joe
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Sunday, March 15th, 2020 AT 10:29 AM
Tiny
LEWXT
  • MEMBER
  • 5 POSTS
Yes something like that. I have spark at the coil.
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Sunday, March 15th, 2020 AT 2:02 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Chances are that is the problem. Let me know what you find.

Joe
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Sunday, March 15th, 2020 AT 5:46 PM

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