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I have a vehicle with a cylinder misfiring (according to my OBD-II code reader). I have decided to have a mechanic repair it, as I have never performed a similar motor vehicle repair.

Note that the only consistent symptom besides throwing the cylinder misfire OBD-II code is a little accelerator hesitation.

Not consistent was also some really bad (perhaps metal on metal - hard to tell) grinding sound for about 10-20 seconds when first driving after not using the vehicle for over 2 months. It sounded real bad, but resolved on its own before I could even turn around and park.

To help me evaluate different mechanics, I would like to know what is likely required to properly diagnose and repair this problem. With the knowledge you provide, I will hopefully be able to filter out the scammers and find a trustworthy mechanic for this job.

Amazon Dies In Darkness
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1 Answers1

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There are many reasons for a cylinder misfire, many of them you can check for yourself. Easy to check are:

  • Spark plugs: a worn plug, badly gapped plug or a fouled plug
  • Spark plug not fully in: check to make sure the plugs are inserted properly
  • Spark plug cables: worn, pinched or greasy cables may not transfer electricity properly. Also make sure the connections are clean
  • Coils: it's hard to check these without the right equipment, but easy to replace

Less easy:

  • Cylinder compression
  • Fuel Injectors
  • Fuel Pressure
  • Valve seating

It would make sense to check the easy things yourself and possibly save yourself some money.

GdD
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