Machine-translated by Google. Questions are authored in English.
Top

Discussion

Which practical technique identifies a failing coil quickly?

  • A.Disconnecting each coil in turn while the engine runs, which identifies the cylinder that is already not contributing
  • B.Swapping the coil with an adjacent cylinder and rechecking
  • C.Measuring the resistance of each coil in turn, which identifies the faulty unit without disturbing the installation
  • D.A visual inspection

Answer: B

If the misfire follows the coil to the new cylinder, the coil is at fault. Disconnecting cylinders in turn genuinely is a recognised technique, which makes the last option a real if cruder method that risks the catalyst. Working the distinction through on a single concrete case fixes it more firmly than any rule of thumb. Naming what changes and what stays the same is the reliable route through questions of this shape.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.