2012 Jeep Wrangler Sport Convertible SUV 3.6L V6 4x4 6-speed Manual Logo
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jack keller Posted on Oct 01, 2014
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Why won't my jeep start.

2012 wrangler sport won't start. lights flicker, buzzes, even when trying to jump start.

1 Answer

Bill Boyd

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  • Jeep Master 53,816 Answers
  • Posted on Oct 01, 2014
Bill Boyd
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Joined: Jan 04, 2013
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Have a load test done on the battery to check for bad cell. Make sure that the battery term9nals and terminals are shiny clean and tight.

Testimonial: "It turned out to be the battery, dead cell."

5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Nov 30, 2008

SOURCE: 3rd brake light won't work. Replace bulb...nothing

The contacts for the third brake light are two silver discs, about the size of a dime. They are located on the inside of the tailgate, hinge side. Make sure your carpet or any other loose item has not covered one or both contacts. Make sure they are fairly clean and make good contact.

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Anonymous

  • 1 Answer
  • Posted on May 01, 2009

SOURCE: 95 Jeep Wrangler wont start

Well two things are happening here... the people saying fuel regulator, you guys are not having the same problem. the relay buzzing is the indicator that the computer is bad. The relays that are buzzing get engergized by the computer. Notice the Check Engine Light won;t come on until after the buzzing is over. Now the fuel problem is different from that becuse the computer is working fine but the pump can't build enough pressure in the first second (like it is suppose to do) during the priming before you turn the key to start. Sorry for all you with the computer problem ain't cheap...

chitownbob45

chitownbob45

  • 316 Answers
  • Posted on Oct 15, 2009

SOURCE: Check Gauges Light 1997 Jeep Wrangler

bad battery or bad,corroded terminals

Anonymous

  • 1 Answer
  • Posted on Dec 13, 2009

SOURCE: jeep alarm will not turn off

The ignition security on/off is located at the trunk lock. unlock and lock rear gate and the alarm will turn off. My jeep sat in my drive for a month before a jeep tech told me this. It still triggers the security sometimes when I unlock the passenger door with the key and I go straight to the rear gate lock and it shuts off instantly.

Anonymous

  • 2926 Answers
  • Posted on Jan 17, 2010

SOURCE: 1989 jeep wrangler starts jumping and backfiring

Start with the basics...meaning check the spark plug wires and spark plugs. While under the hood, inspect all hoses for a vacuum leak(s). Then turn the ignition key on-off-on-off- on...leave in the on position and write down the number of flashes the check engine light indicates....2 flashes = #2....pause.....3 flashes = #3.
Let start from here. Are you able to perform engine repairs or diagnostics???

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Problem starting

If the check engine light does NOT come on when cranking, at the times when it won't start, and the relays are clicking and buzzing, then your ECU is in need of repair. The engine will only start after the check engine light comes on and the ecu is what controls that. ECU is likely going bad, causing the delayed start problem typical of early 90's jeeps. Reasonably priced repair or replacement services for your jeep ECU are available on ebay.
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If the check engine light does NOT come on when cranking, at the times when it won't start, and the relays are clicking and buzzing, then your ECU is in need of repair. The engine will only start after the check engine light comes on and the ecu is what controls that. ECU is likely going bad, causing the delayed start problem typical of early 90's jeeps. Reasonably priced repair or replacement services for your jeep ECU are available on ebay.
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Auto shut down relay chatters -no power to fuel pump. Replaced relay -still have same problem on 1993 Wrangler

If the check engine light does NOT come on when cranking, at the times when it won't start, and the relays are clicking and buzzing, then your ECU is in need of repair. The engine will only start after the check engine light comes on and the ecu is what controls that. ECU is likely going bad, causing the delayed start problem typical of early 90's jeeps. Reasonably priced repair or replacement services for your jeep ECU are available on ebay.
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Check Gauges Light 1997 Jeep Wrangler

bad battery or bad,corroded terminals
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WOnt run over - battery good - can turn it over but jumping the starter

if the battery is good and you jump the starter she should run otherwise you may have a sensor issue, try to get a hold of a code reader and see if any codes have popped up..
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