Ignition fuse keeps blowing

Tiny
SEXYPIRELLI
  • MEMBER
  • 1994 PLYMOUTH VOYAGER
  • 3.3L
  • V6
  • 2WD
  • AUTOMATIC
  • 194,000 MILES
Just bought this vehicle and they said there is a wire that needs replace or taped up to keep it from blowing the ignition fuse. What or where could it be so I can look.
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Saturday, December 7th, 2019 AT 9:46 AM

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Tiny
CARADIODOC
  • EXPERT
This is amazing. I'm working with someone else for a different problem right now on a 1994 Grand Caravan. My daily driver is a 1994 Grand Voyager.

If the seller knew which wire to refer you to, or he knew what was wrong, he surely would have fixed it to increase the vehicle's value. We can assume the cause is something more expensive than he wanted to deal with, or he doesn't really know what's wrong, so lets not go looking for that "wire".

First we have to verify exactly which fuse is blowing, and when or how often. Next, I'll post a diagram of the affected circuit and see if there's some common items to look for. The last step is I have a trick that lets you diagnose the circuit without blowing a lot of fuses.

Can you figure out from this drawing which fuse is the one that's blowing?
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Saturday, December 7th, 2019 AT 2:09 PM
Tiny
SEXYPIRELLI
  • MEMBER
Hello, sorry been busy with work and my son. Single mom here. Let me get back to you in a couple days to verify. I bought it from a woman as well.
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Tuesday, December 10th, 2019 AT 11:22 PM
Tiny
CARADIODOC
  • EXPERT
Dandy. I'm here almost every evening and will be anxiously waiting to hear back.
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Wednesday, December 11th, 2019 AT 4:29 PM
Tiny
SEXYPIRELLI
  • MEMBER
Ok so the diagrams you share I dont have a clue how to refer to them but all fuses are good. I have looked at wires I could see and get to but I haven't checked the wires but the exshauted. So, I kinda dont know what else to look at. Like it wants to start but it wont like spark I guess you can say. Any suggestions on what else I can look for or at.
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Friday, December 13th, 2019 AT 6:20 PM
Tiny
CARADIODOC
  • EXPERT
In your original post you said a fuse is blowing. Now you're saying they're all good. I don't know where to start. If a fuse keeps on blowing, I have a trick to help diagnose the cause, but I need to know which fuse it is first. That's what the drawing was for that I posted. Sometimes the fuse box cover is missing, or the fuses are poorly labeled. That's why I posted that drawing.

How did you check the fuses? The best way is with a test light. The smaller fuses have two tiny holes on top for test points.

If the fuses are okay, we have to move on to determining if the automatic shutdown, (ASD) relay is turning on during cranking. Test lights work best for this too. If you don't know how to use one, here's a link to an article that will help:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

You need to back-probe through a connector, next to the wire, to make this test. Look for the dark green / orange stripe wire at the ignition coil pack or at any of the three injectors in the front of the engine. You should see the test light turn on full brightness for one second when a helper turns on the ignition switch. What's important is if that light turns on again during cranking the engine.

If the test light never turns on for that one second, or during cranking, will tell us where to go next.
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Sunday, December 15th, 2019 AT 3:15 PM

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