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What if, the thermostat is stuck open? The engine runs super rich in cold weather, causing the emissions warning. It would explain why it doesn't show in warmer weather


Coming back to my post, after going to Toyota they told me it is most likely the solenoid. They recommended replacing the entire tranny for $5600 as they said the cost of replacing the solenoid is VERY expensive, their reasoning was: There are a lot of internal transmission parts that need to be inspected and possibly replaced along with the solenoid if ...

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