When reducing throttle, engine continues as it likes for about 3sec. Way too long. It's done this since we bought it, but seems to be taking longer to slow down today. P0463 is the only fault; it developed in the last 3mos. My wife says the gas gauge twitches occasionally. The issues don't seem related. No ck-eng light. Two years ago, my neighbor suggested I change an air sensor, I don't recall what it was, but it didn't resolve the problem or cause another. Otherwise, engine is strong and smooth. Your observations and suggestions will be appreciated.
99 Tahoe 2dr Basic 4x4 5.7L 180k/mi, slow response when reducing or lifting throttle.
- Thread starter K7KY
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