Question about 2004 Toyota RAV4
2 possible origins for your problem:
1 - the fuel/air mixture in your engine is not correctly done at higher temperatures - it's too lean - so the engine lacks torque so it stumbles when gearshifting occurs. This can be caused either by a bad temperature sensor or by a failing fuel pump (or pressure regulator). To identify the failing part you will have to connect the car to a diagnostic machine and retrieve the error codes.
But it's much more likely that it's this
2 - the transmission oil has aged and its characteristics have degraded so much that it's no longer doing its job when heated. You will have to replace it immediately - the transmission will be severely damaged if you continue to use it as is.
Posted on Mar 25, 2011
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Posted on Jan 02, 2017
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