Vauxhall Astra spark plug coking up
Variant: 8 valve hatchback
Model Year: 2003
Categories:
Engine & Drivetrain
mileage 43000 spark plug on cylinder 4 keeps coking up with black carbon deposits every 2500 miles then misfires,(ok when i clean up again)uses aprox over 3/4 litre of oil a week, i have had a compresion test done but everything was normal ,anybody any ideas what could cause this ?
Posted: May 18, 2010 (14 years ago)
Could be valve stems/ guides / oil seals worn .
Posted May 18, 2010 (14 years ago)
replace the plugs with new ones as a old plug if not firing correct will just sut up just as quick and will not burn right give this a try hope it helps
Posted May 20, 2010 (14 years ago)
You may have a dribbling injector or even a coil/extension fault
Posted May 24, 2010 (14 years ago)
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