2002 Toyota Prius

Transmission problem
2002 Toyota Prius 4 cyl Two Wheel Drive Automatic 85000 miles

a Prius certified tech at Firestone changed oil. A week later, transmission blew. Is it related? Intakes on engine were clean. One extra quart of oil. When all lights came on, I was 2 blocks from Firestone. Mangager checked oil and discovered extra quart. They did it again. Next morning, went to Toyota and STILL extra quart of oil. Questions: Dealer wants 8k to fix. Should I try AAMco or Cottman transmission or should I sue Firestone? Thank you, Peggy
August 9, 2009.

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