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What do you check if your 96 Ford Explorer XLT has severe detonation with 87 octane fuel?

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βˆ™ 2006-09-02 15:35:56

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Start higher octane fuel and check the timing. If it is severe detonation, serious engine damage has occured.

2006-09-02 15:35:56
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Q: What do you check if your 96 Ford Explorer XLT has severe detonation with 87 octane fuel?
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