Question about Hyundai Motor 2002 Sonata

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I have a 2002 Hyundai Sonata with an intermittant starting problem. No garage has been able to fix it because they can't demonstrate it (it always starts when I leave it at the garage) It always sounds like it is going to turn over but it doesn't. I just wait and then turn the key again and eventually it will start. Sometimes it takes 20 tries, sometimes it starts on the second or third. Sometimes it helps to turn it just to the right and listen for the whirring noise to stop-then turn the key all the way. The battery is new. Any ideas? My mechanic thinks it might be worth replacing the ecc relay switch, even though he is not sure that is the problem.

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6ya staff

  • 2 Answers


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Posted on Jan 02, 2017



  • 1 Answer

SOURCE: 2003 Hyundai Elantra won't start.

Has similar problem, just got back from the shop and they said it's the neutral safety switch.

Tip on starting even with a broken switch:
1.) Turn the key all the way to start position (you will hear the gas pump humming and all the lights should be on)
2.) press the clutch pedal all the way down (if it starts, then it's fine, if not, proceed to step 3)
3.) release the pedal slowly and just slightly (an inch or so).
-->on the first try, you should hear a slight click and feel the car moving slightly. That's the point where the car tried to start.
4.) Repeat step 3 for several times if the car doesn't start until you are able to grasp that exact point and once you hear that click, hold the clutch at that point and the engine should fire away.

Of course this is just for temporary counter measure, I have to do this because this is my commuter car and I got to find a way to have a reliable and predictable start. Hope this helps.

Posted on Mar 29, 2009



  • 1 Answer

SOURCE: hyundai sonata cutting out while driving

I had the same problem with my 2000 Sonata a couple of years ago. It was the crank sensor and once replaced, it solved the problem.

Posted on Aug 17, 2009



  • 1280 Answers

SOURCE: 1999 Hyundai Grandeur suddenly stop and couldn't start again

Coolant Temperature Sensor

Posted on Oct 19, 2009


Duane Wong

  • 6826 Answers

SOURCE: wondering how to change the

High Mounted Stop Lamp Removal & Installation To Remove:
High Mounted Stop Lamp hyundai-06-00-5896.gif

  1. Disconnect battery negative cable.
  2. Disconnect high mounted stop lamp electrical connector from inside trunk.
  3. Remove package tray.
  4. Replace bulb from package tray.
To Install:
High Mounted Stop Lamp hyundai-06-00-5896.gif

  1. Install package tray.
  2. Connect high mounted stop lamp electrical connector from inside trunk.
  3. Connect battery negative cable.
prev.gif next.gif

Posted on Oct 12, 2010


  • 3 Answers

SOURCE: Why is it that I

The same thing happened in my 2001 Hyundai Sonata. I read many previous forums that stated transmission shops cannot find the problem and the ones that did spent alot of money to do it. I am more of a diy guy so i got a free diagnostic test done stating a shift speed sensor. i pulled off the air filter box to expose the top of the transmission and low and behold i found the plug in the center was corroded. I went to the parts store and they wanted about $50 for the new plug and being sceptical i just took some scrap wires and soldered new connectors inside the plug and hasnt had the problem now for a year.

Posted on Jan 22, 2011

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