2006 Chevrolet Trailblazer Logo
marsha wayman Posted on Mar 04, 2013
Answered by a Fixya Expert

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Replaced mega fuse now wont start

Blew mega fuse jumping off battery wrong. replaced mega fuse now it wont start. has bean idling low before this happened

  • Anonymous Mar 10, 2013

    Can the mega fuse stop your alternator from charging

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1 Answer

Anonymous

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  • Expert 253 Answers
  • Posted on Mar 04, 2013
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Joined: Feb 15, 2013
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Putting reverse polarity to a battery will do more damage then blowing a fuse. Chances are you could have taken out the ECM and possibly the TCM

5 Related Answers

Anonymous

  • 4 Answers
  • Posted on Oct 03, 2009

SOURCE: car wont start

sounded like the altinator, when you replaced it did you plug it in and check it.. Thanks wired good luck

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Anonymous

  • 186 Answers
  • Posted on Aug 05, 2009

SOURCE: my kill switch fuse blew on a 1994 chevy surburban

If the fuse blew than you have a short follow the wire and see where it shorted to.

Anonymous

  • 564 Answers
  • Posted on Jan 31, 2010

SOURCE: The left high bean bulb blew. I replaced it.

a bad new bulb?????

Anonymous

  • 3400 Answers
  • Posted on Jan 03, 2011

SOURCE: 98 chevy cavalier 2.2....replaced starter...car

Sounds like bad battery cables and/or ignition switch. I would clean battery cables thoroughly with wire brush especially the bottom end since they're exposed to road grime, etc... Also check to make sure you put small wires on solenoid on correctly. I've seen people get them reversed because they're looking at them upside down when attaching from under car. More than likely it's those small wires on solenoid.

David Littlefield

  • 136 Answers
  • Posted on Jan 21, 2013

SOURCE: low bean won't come on, on a 1998 chevy truck. fuse all good, don't know if it has one of those round limer switch or not - help

Check dimmer switch, replace if needed,'

Check light sockets and wires, replace as needed.

Check for relay if applicable.

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Related Questions:

0helpful
1answer

Why won't my 2007 Chevy Equinox LT start? After giving someone a jump, battery saver mode kicked on and now won't even start.

backward is super huge mistake blowing up electrons on the car.
check fuses
crank and scan the PCm.

if lucky you only blew up the aternator./
its regulator blown up to H3LL. or pcm is the reg and blew it up.and very costly error.
this is not 1960 and no computers and cars could survive this error.
those days are gone. (and loved)
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2005 duramax wont start replaced ficm rand one day great wont start again blew mega fuse still no start

find all ground wires in your vehicle clean and sand shiny , replace tight. will save money on parts you don't need. also older starters will begin to draw too many amps and keep blowing fuses. test starter.
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Had no interior power. I replaced the mega fuse. every thing started working but then the passenger side window will not roll up. can the mega fuse partially go out?

No, mega fuse either works or it doesn't, no grey area. Make sure you don't use the mega fuse terminal for jumping. Battery terminals only. Take the switch out of the door and make sure you're getting power.
0helpful
1answer

Put in new battery and a fuse blew, dont know which one but air conditioning, radio, windows, locks seats or alarm doesnt work.

Check the Mega Fuse right next to the battery. Open the fuse box, it's right there towards the battery black and about 2-3 inches long. It screws onto 2 metal terminals in the very front of the fuse box. Someone MAY have tried to jump start using one of the megafuse terminals, which is a no no. To check the fuse, need a volt ohm meter. Need to check continuity.
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Reversed polarity on jump start. now wont go into gear or hold charge

OLder cars YEs you can jump it without a battery. But in newer cars that use computers and advanced Eltronic ignition/timing/ful injection you have to have power to the cars computer. without a good battery the car will not run.---------------------------------------------------------------------------------
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Nothing power in my car is working all power windows locks seat adjustments i think i blew a fuse and im not sure which one

Have you recently had your car jump started or have given someone a jump start? If so, where did you connect the positive cable? If you connected it to a large bolt just behind the battery, you may have blown the Mega fuse. This fuse provides power to the rear fuse panel. Attached is a picture of the area.

freddyboy61_5.jpg
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Radio/cd player wont come on

you blew the radio too. take it out and apply 12v directly to it and see if it powers up.
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My car cranks but dont start

you need to make sure its gettin spark and fuel and compression start from thare also plug a scan tool into it so see if all the sensors are working possibley ecu could be fried
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