Spark plug lead pop out on ed6 90 civic

[ThEbLaCk]

pHi, would any know why sometimes one of the spark plug lead loosen out or pop out ?

I never see it pop because the only time I check out the engine bay is when the car signals to me something has gone wrong

Thx guys

[trism]

so youll have it all good and tight, and itll come loose and come off after a few weeks? days?

Is it the same one every time?

[Snoop_gee]

Obvious is ..Check your spark plugs
Slightly tightening the spark plugs stops the wires from popping out.
If your spark plug is lose, compression from the piston will leak through pushing the spark plug wire up.

Q. What spark plugs are you runnning?

[DC2-PWR]

Happend to me,

fault was my spark plug wires were worn. The rubber was worn and it didn't stick very well only the distributor.

Bought new wires and havnt had an issue since

[ECU-MAN]

as above, its the lead itself that causes the problem

[ThEbLaCk]

Thx guys. I replaced spark plug denso recently. Not sure if they r tight enough, so I retigtened spark plug and c if jumps out again. If I have to buy leads wat leads should I get?

Also, does anyone know why my newly replaced plug turned so burn in color after short time of use?

[dougie_504]

It's the leads mate, the rubber is old and doesn't seal properly as said above. It also won't prevent water/moisture from getting in very well, so be careful if you ever de-grease your bay.