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Fuses keep blowing

Tiny
MISCHELE
  • MEMBER
  • 1997 FORD CONTOUR
  • 4 CYL
  • AUTOMATIC
  • 172,000 MILES
The engine management fuse in my car keeps blowing as soon as I put one in. It is a 7.5 fuse.
Monday, December 12th, 2016 AT 12:30 PM

11 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Something is shorted out ether a component or wire. You can get a bulb test light and hook it across where the fuse goes. It should light up bright then you can move wires around and unplug things to see if the light dims or goes out to narrow down where your problem is.
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Monday, December 12th, 2016 AT 12:41 PM
Tiny
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Would the component be run by that particular fuse? Is there any way to narrow down my search?
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Monday, December 12th, 2016 AT 12:51 PM
Tiny
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  • 8 POSTS
The engine management fuse controls the heater blower, gauges, radiator fan, and the power wire that runs from the alternator to the switch. Where would I begin troubleshooting? The fuse will work for a very short amount of time then blow. I have a light tester.
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Monday, December 12th, 2016 AT 12:54 PM
Tiny
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It could anywhere that fuse feeds power to. Use your light tester across the fuse slot that keeps blowing with the key in the "run" position? Let me know if the fuse is bright dim etc.
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Monday, December 12th, 2016 AT 1:40 PM
Tiny
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It glows bright when you first put it in If it does not blow immediately. Other times it may not blow for up to thirty minutes. Thank you for helping.
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Monday, December 12th, 2016 AT 2:04 PM
Tiny
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What is the location number of the fuse that keeps blowing?
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Monday, December 12th, 2016 AT 8:09 PM
Tiny
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It is the engine management fuse under the dash. It is a 7.5.
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Tuesday, December 13th, 2016 AT 10:55 AM
Tiny
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Its the engine managment fuse under the dash. It is a 7.5
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Tuesday, December 13th, 2016 AT 10:55 AM
Tiny
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I do not see a fuse called that. Can you please tell me the fuse location number like I asked for before?
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Tuesday, December 13th, 2016 AT 12:42 PM
Tiny
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It is #30.
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Tuesday, December 13th, 2016 AT 12:50 PM
Tiny
SATURNTECH9
  • MECHANIC
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That number in the inside fuse box is the electronics fuse. I posted a picture that tells what it powers. I would start unplugging components while watching the test light to see how it affects the light.
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Tuesday, December 13th, 2016 AT 12:54 PM

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