Sounds like spark is jumping
#1
Sounds like spark is jumping
2009 Cooper S. The sound is intermittent, and I can hear it inside the car sometimes, but the engine is running smooth and making great power with no trouble codes. It sounds exactly like if you were checking spark on a spark plug, but louder. If spark was arcing from the coil to the head, wouldn't it misfire and run rough?
Last edited by csq33r; 12-26-2017 at 12:21 PM.
#3
It really sounds like the 'snapping' of a spark to me. I pull the cam cover every month or so to check the cam chain guides. The engine is very clean, there's no sludge at all and the oil is always clear. The engine has around 175,000kms. I'll check it tonight in the dark and see if I can see a spark.
#4
It really sounds like the 'snapping' of a spark to me. I pull the cam cover every month or so to check the cam chain guides. The engine is very clean, there's no sludge at all and the oil is always clear. The engine has around 175,000kms. I'll check it tonight in the dark and see if I can see a spark.
#5
#6
I wiggled the coil packs and found that the sound was coming and going on cylinder #2. I pulled the coil out and there was brown tracking marks on the side of the coil pack plastic tube. I brought it in the house and cleaned it off, then smeared some thick Dow Silicone grease all over it and re-installed it and the sound is gone. The plastic didn't appear to be cracked, but looks like there must be a tiny path allowing spark to get through.
#7
Trending Topics
#8
Yes , they can dry out from the heat then arc. Might buy it sometime before the heat cycles dry it out more.
Di electrical grease helps when you first install new ones.
Di electrical grease helps when you first install new ones.
__________________
MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
Thread
Thread Starter
Forum
Replies
Last Post
ZAMIRZ
Drivetrain (Cooper S)
4
05-20-2004 04:13 AM
Drivetrain An exhaust system that sounds like stock?
atn57
Drivetrain (Cooper S)
7
03-10-2004 08:05 PM
Drivetrain sooo.. this what the twin screw sounds like
myminis2
Drivetrain (Cooper S)
3
09-24-2003 01:41 AM