Still has a misfire - engine shakes?

Tiny
WILLIAMROSARIO
  • MEMBER
  • 1997 HYUNDAI ACCENT
  • 80,000 MILES
Replaced head gasket, timing belt, spark plugs, wires. Timing marks are perfect. Firing order are good too. Car still has a miss. Engine shakes.
Tuesday, December 18th, 2012 AT 5:21 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

The misfire can be due to a faulty coil pack.
Are you getting the check engine light for this misfire?
Usually is the module or coil pack is bad then you could get random cylinder misfire.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

The coil can be tested. You will need to measure the internal resistance of the coil. I have attached the testing procedure for the coil pack (see below). As well as resistance value for the coil.

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

Please let me know of any questions.
Thank you.
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Wednesday, September 8th, 2021 AT 11:58 PM

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