Question about 1987 Buick LeSabre
If gais getting in the oil there is only one reason, it is getting by the rings, causes are always rich cylinder conditions such as cold start mode remains on due to a defective ECT sensor, also defective fuel injector(s) will cause this issue, cold running engine from a stuck open thermostat can also be a contributing factor.
Posted on Dec 02, 2008
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