Hyundai Motor 2004 Sonata Logo
j
jesse Posted on Apr 26, 2014
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Why car my car start?

I have a 2004 hyundai sonata 4cyl manual trans. my car cranks but it wont start i replaced the fuel pump but its not that. I there are no broken belts and i replaced the crank shaft sensor and the timing is good. i did notice that it had no spark so i replaced the coils, spark plugs, and the spark plug wires and yet still no spark. at this point i have no idea what could be wrong. I appreciate any help.

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Roberto Burgos S.

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  • Posted on Jun 04, 2014
Roberto Burgos S.
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No spark? Then there is probably no signal to trigger the spark. Possible causes:
1) Cam position sensor.
2) Crank position sensor (you replaced it)
3) Coils (already replaced)
3) Wiring and connections to and from coils (bad grounding points or bad live feeds)

Suggestion: Stop the guessing and spending with "probable" causes. Have the car scannned for error codes and start from scratch according to error codes.

danoyachtcap

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  • Hyundai Master 2,907 Answers
  • Posted on Apr 06, 2015
danoyachtcap
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Check the Main Relay and it's fuse. That will cause a no start problem.
Hope this helps.

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5 Related Answers

Graham Core

  • 114 Answers
  • Posted on Sep 24, 2008

SOURCE: 1998 hyundai accent

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

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Anonymous

  • 2 Answers
  • Posted on Feb 01, 2009

SOURCE: 03 tiburon cranks,but wont idle or run

does your alarm system go off, and result in it not starting???

Anonymous

  • 53 Answers
  • Posted on May 21, 2009

SOURCE: NO FIRE

hi there, you need to make sure all wires to spark plugs are tight and very snug, you will also need to check the distributer cap to make sure no burns are on it, and make sure the plugs are in proper firing positions, the spark rotation might be out of sequence.....also make sure spark plugs are clean of all oil, and dirt, firing pin in distributer cap might be bad.....hope this helps....shia

jatncbeach

  • 225 Answers
  • Posted on Aug 07, 2009

SOURCE: 1999 hyundai sonata misfires after replacing crank

if you changed the timing belt and balancer belt. you may be 1 tooth off. will miss like a champ if the belt was changed

Anonymous

  • 23 Answers
  • Posted on Nov 04, 2009

SOURCE: I have a 2002 hyundai

if jump time that should be it timing marks and the tensioner are to lined up an also install new tensioner and recommend water pump if driven by the timing belt. if it has bent valves cause you jump time usually the car won't trun over at all.

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http://www.reliable-store.com/products/2004-hyundai-sonata-workshop-repair-service-manual-pdf-download
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Why car my car start?

there are 2 pieces to the crankshaft sensor...one is a little round thing that is mounted under the valve cover on the driver side. The other part plugs into this and the cable runs down under the other side of the engine. The sensor is inside the timing belt cover.

i had your problem a month ago and had the little round part replaced and that worked for me.

2004 Sonata 4 cyl auto

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check to see if getting spark or fuel if no spark could be crank sensor or cam sensor have to check voltage out of wiring harness if low voltage ecm bad. Pull both coil wires off coil and have someone turn ignition no spark probably ecm. For fuel check number one plug see if wet and also listen when you turn key for fuel pump. If driving it just died on ya and battery went dead like know and you tried jumping or replacing battery.Still would not start ecm bad.
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May have dirt on crank angle sensor ,loose/damaged. Located usually close to bottomf pulley on engine.. Remember to keep it simple and check for the obvious first (fuel/pump? is emergency shut off tripped accidentally from towing ? Turn ignition on and have someone listen at fuel neck for pump operation. Check all fuses.
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