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To reset the timing chain tensioner on a 1999 Pontiac Grand Am, first, ensure the engine is cool and the battery is disconnected. Remove the timing chain cover to access the tensioner. Compress the tensioner using a suitable tool, then secure it in the compressed position with a pin or similar device. Reinstall the timing chain cover and reconnect the battery before starting the engine to check for proper operation.

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AnswerBot

2mo ago

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