Has anyone heard of gapping sparkplugs to .035 instead of factory recommended 0.44 to eliminate misfire 0n Hyundai Accent?

80

Asked by Nov 17, 2015 at 08:04 PM about the 2011 Hyundai Accent GL 2-Door Hatchback FWD

Question type: Maintenance & Repair

I had all four coil packs and all 4 plugs changed at different times to cure engine misfire. The engine still misfires when idling after a stop. Also misfires and jerks inter-mittently, not very often. I have heard changing the gap on the plugs would eliminate the misfire. Has anyone tried this?

4 Answers

109,505

Gaping to 0.035 is for old style ignition systems. Your car has a high energy system and reducing the gap will likely result in poorer gas mileage and increased emissions.

1 people found this helpful.
109,505

If you have 4 different types of plugs I would change them all out and install a good set of NGK or other quality spark plugs so that they are all the same.

845

NGK's will work best in ur jap engine they should already be at the .44 gap and after all NGK is Japanese

65,445

The only time you should consider a smaller gap is when an engine is turbo charged or super charged and there are driveability concerns. Yours is none of the above, so replace all spark plugs with what is recommended by the manufacturer and make sure all the gaps are set to the recommended specification.

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