engine knocking- 87 420sel

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engine knocking- 87 420sel

05-16-2001, 11:07 AM

Al M.

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when trying to accelerate hard, the car seems to knock (kicking?) but when I pull off the accelerator it drives normal. Is this bad gas- low octane. I filled with 92 octane from racetrack. wondering if they are selling poor quality gas or is this something more serious.

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