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2003 Cavalier Keeps blowing the 40 amp fuse in BATT2

My 2003 Cavalier keeps blowing the 40 amp fuse in BATT2 terminal everytime i start the vehicle. That then knocks out my ignition, my signal lights and my tail lights. And then the car won't start until i replace the fuse, and then sometimes it won't even crank over it just blows the fuse...I'm sure there's a short somewhere, but I can't find it. I've even replaced the starter and it is still doing it..

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I'm sure there's a short somewhere, but I can't find it. I've even replaced the starter and it is still doing it..???????
The wiring that fuse protects is shorted to ground ! You don't know how to find a short ? Your best bet ,take it to a shop that can .
Finding The Source Of Electrical Shorts In Your Car

Posted on Aug 01, 2017

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Posted on Jan 02, 2017

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SOURCE: 20-amp starter/ignition fuse keeps blowing & car won't start

its the starter

Posted on Aug 03, 2008

  • 1 Answer

SOURCE: ignition fuel starter fuse keeps blowing and it won't start

The earlier "fix" suggests a possible wiring problem -
more specifically, a historic issue with Chrysler products is the ground connections, which are typically insufficient.
Check both the battery to engine and then the engine to frame (firewall). If either are worn or frayed replace them. Even if it looks fine I would still replace the motor to frame cable with a heavy duty grounding strap available at most parts stores. ( doesn't have to be a specific cable - can even be homemade, just make sure it is heavier than the original and is connected to a good, bare area.)

Posted on Oct 28, 2008

  • 1089 Answers

SOURCE: # 4 fuse blew out,

I KNOW YOU HAVE AN ELECTRICAL SHORT.WAS AN ALARM INSTALLED OR ANY OTHER TYPE OF ACCESSORY? CHECK WITH DODGE TO FIND OUT ABOUT A RECALL.IF SOMETHING WAS INSTALLED, TAKE IT BACK THERE TO STRAIGHTEN IT OUT IF NOT HAVE A AUTO TECHNICIAN CHECK IT FOR YOU.

Posted on Dec 27, 2008

  • 6982 Answers

SOURCE: ignition switch fuse terminal is blowing red 40 amp fuse when i try to replace it

A fuse that is consistently blowing is telling you that there is a short in that system. Don't attempt to bridge it or use a larger amp fuse or you will have a major problem. You will need to start tracing wiring to destinations to find the short. If while moving harnesses around problem ceases to exist, look at nearby items where you are working and try to locate what was grounding. Sometimes people will stop if short disappears, leaving open the possibility of it happening again.
If you are not comfortable working with wiring, then leave it to professionals who do this every day. It's not really difficult but requires patience and a good bit of knowledge to do this right!

Posted on Apr 18, 2009

  • 2 Answers

SOURCE: FUSE KEEPS BLOWIN (STARTER, IGNITION, & FUEL # 8 FUSE)

you need a new starter I just went through this problem had my starter changed and have not blown any fuses in days....oh and by the way getting to the starter was not and easy task.

Posted on Jun 18, 2009

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More details about Power Center Distribution, check the Section 8W Wiring Diagrams

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