Mysterious Intermititant misfire. :?

[ScienceVR6]

Occationally, my VR6 gets a bad misfire, and losses power under load, and then clears up and runs fine and gets full power. I dont know the age of the plugs or leads. When is the scedualed change of plugs and leads?
mine has done 137,000km.

Could it be anything else?

[golf-kart]

Maybe need a new coil pack?

[rayray086]

Occationally, my VR6 gets a bad misfire, and losses power under load, and then clears up and runs fine and gets full power. I dont know the age of the plugs or leads. When is the scedualed change of plugs and leads?
mine has done 137,000km.

Could it be anything else?

Having the exact same thing, except in a 2.0L. Doesn't happen regularly, but once in a while either during second gear or fifth gear (coincidence perhaps). I have no leads to what may be causing this either

[Golf Loon]

Coil pack on Vr6 and coil on your car Ray.

[rayray086]

Thanks. Is this a common problem?

[golf-kart]

This is common from what I hear.

Replaced the coil at 90,000km in my old Mk3 GL after suffering similar symptoms. Easy, quick and cheap part to swap over yourself.

[william]

do you apply acceleration and it doesnt move next sign of the fact its a coil is that it will turn off itself while driving or not start at all no matter how manytimes you try its common mate i suffered with it for ages

[dannylaroo]

Coil Pack and Oil Pump

My VR6 had a bad miss few years back, Seb at Euroauto replaced my coil pack and it ran like a dream.

Only recently however, it developed another slight miss, this time Oil-Pump, Seb replaced this for me and once again running like a dream


http://euroauto.com.au/

[Bora Sport]

My Seat has been doing the same thing and it was diagnosed as the coil this morning. I have purchased a new one from VW - $263.00! I haven't fitted it yet so I don't know if it has fixed the problem.

[ScienceVR6]

it went from being an intermittant missfire, to a full missfire on cylinder 1. Discovered big blue spark eminating from the lead around the plug cap. i've ordered some leads from Repco, and hopefully it fixes it. Removing number 1 lead makes no differance to the running of the motor so im assuming that this is the cause of the missfire.

[ScienceVR6]

Update.

the new leads fixed the problem. $180 from repco.

[rayray086]

I recently bought a new ignition coil and #30 relay from Tooley's. They claim that one of the most common problem points from intermittent misfire is from those 2 items (Their Transporter had the same problem). Coil was $170 (bugger) and the relay was ~$20; told me I can try the relay out first and if that fixes it, I can return the coil. At the moment, it's running awesome, but I'm still gonna hang on to the coil for another week or two.