a rattling sound to some may sound different to others but sounds like timing ping to me
try a higher grade of gasoline and if it stops have the timing on the engine checked
Transmission "slips" when downshifting, especially going up slight incline and...
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Transmission "slips" when downshifting, especially going up slight incline and accelerating. Also, engine "misfire" idiot light came on once. Turned off engine, restarted, problem gone. What should I do?