NO spark on third cylinder after replacing the coil and spark plug

Tiny
MATTSR
  • MEMBER
  • 2005 NISSAN ALTIMA
  • 2.5L
  • 4 CYL
  • 2WD
  • MANUAL
  • 180 MILES
Hi, recently I had to replace the coil and spark plug on the third cylinder but now I am not getting any spark its getting fuel and compression just no fire. I started the car and removed the connectors on one, two and four which reduced the rpm's right away. When I removed the plug on the third cylinder there was no change, but the plug was drenched with fuel. I do not know what to look for next except the connector itself maybe shorted out.
Tuesday, September 20th, 2016 AT 3:45 AM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
With misfires it is best to have a mechanic do these as you can end up dumping a lot of money and still have problem. He can scan for codes. If you like check for a vacuum leak and check compression on the offending cylinder.
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Friday, February 24th, 2017 AT 3:52 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,883 POSTS
Hello, if I may butt in here,

You could have an ignition coil driver inside the computer that has failed, check for coil pulse to confirm here is a guide that can help you.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Please let us know what you find so it will help others.

Best, Ken
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Friday, February 24th, 2017 AT 3:52 PM

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