Question about 2004 Hyundai Elantra GLS

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No start have spark 1&4 cyl no spark 2&3 possible problem replaced coils no change can fire coils with modis

Changed crank sensor and cam sensor still no start

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 74 Answers

SOURCE: 1998 hyundai accent

make sure crank sensor is all the way seated care taken 10mmnut dont over tighten or you will break sensor

Posted on Sep 24, 2008

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  • 366 Answers

SOURCE: car has no spark

is check engine light on,if yes,scan it,it will point you at problem area,you can inspect coil pack for cracks and corrosion,voltage supply

Posted on Feb 28, 2009

ghost4548
  • 776 Answers

SOURCE: 2001 tiburon: cranking but will not start ? No Spark

Based on what you've described so far, you are not familiar with the system you are trying to repair (not intended to insult you). Take/tow the vehicle into a Hyundai Service Center (dealership), pay the diagnostic fee. They will tell you EXACTLY what the problem is and what's needed to fix it (parts, labor, tax, time-frame, etc.).

Posted on Jun 14, 2009

  • 117 Answers

SOURCE: 1999 hyundhi no start

camshaft position sensor could do this

Posted on Sep 28, 2009

  • 608 Answers

SOURCE: hyundai 2001 accent wont start intermittently.

I'd check the key at the dealership. The battery may be flat in it. Also have the key code match to the CPU checked. The security may be the problem or it may be an electical fault such as sticky starter motor brushes or a dead segment in the starter motor amature.

Posted on Mar 18, 2010

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see if u are getting spark from the coil itself (fm 2& 3) It may be the coilpack itself, cam or crank sensor. Start w the coil.

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If there is injector pulse than the crank sensor has to be good. Injector pulse and spark are both calculated off from the signal from the crank sensor.

Checking for power and ground to the coils is a good place to start. If that checks out than either there is a wiring issue in between the PCM and the coils or possible the PCM has failed.

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If all the coils are giving spark now,then you moat likely have gas fouled plugs now,so change them out with new ones,all 8 of them.If you do not have spark on all plug wires,pull the timing belt cover,and align the cam shaft and the cam,to see if the belt has jumped.If It hasn`t,replace the crankshaft sensor.

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it sounds like you may have the wires on the wrong coil. It should be #1 on the #4 coil, and the #3 wire on the #2 coil. you probably have them backwards so 1 and 3 are firing on the exhaust stroke.
the firing order is 1-3-4-2.
they should be hooked like this.
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2 Answers

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have you changed the ignition wires? perhaps firing order crossed? if not coil pack or ignition wires faulty how do you know it is not "FIREING" on 1 & 4 have you tested it with a spark tester tool???

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