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What causes oil to accumulate around the spark plugs on your 2000 mercury grand marquis?
Wiki User
∙ 9y ago
The detection of engine oil on the spark plugs of the 2000 Ford/Mercury Grand Marquis is indicative of a mechanical condition. This is a common symptom of worn valve seals or possibly the guides. This wear may be allowing for excess oil to flow back into the cylinder. This can result in emissions problems and or higher engine oil consumption.
Wiki User
∙ 9y ago
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system glitch or a short
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Check for a vacuum leak either under the hood or under the dash area
