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Cranks but no start suspected neutral safety switch

Tiny
RAYMOND STARKS
  • MEMBER
  • 2005 KIA OPTIMA
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 122,000 MILES
Car shut off on way home one day and wouldn't start back. Have tested crank sensors, cam sensors wiring for power and grounds module. Cannot figure it out. Fuel pump is working, replace fuel pump relay, ignition relay and just noticed that when key is on and if you move shifter to reverse or drive gears transmission makes a crazy buzzing sound like neutral safety switch is shorted. Could this be be my problem?
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Saturday, May 4th, 2019 AT 9:53 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Hello,

Can I ask if the engine is cranking over (starter working) or not cranking over (starter not working). Can you please shoot a quick video with your phone so we can hear the noise, that would be great. You can upload it here with your response. Here are two guides to help address both

https://www.2carpros.com/articles/car-cranks-but-wont-start

and

https://www.2carpros.com/articles/starter-not-working-repair

Please run down these guides and report back.
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Monday, May 6th, 2019 AT 3:11 PM

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