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simple Po753 if I drop to L and back to D it drives fine, check engine light comes on at high way speeds randomly not all the time, I can still do highway speeds but it will shutter at 65+ I let off gas and back on it drives fine, but then the check engine light will sometimes come on,
transmission line that goes through the radiator gave way so both fluids cross contaminated, I flush coolant and did transmission flush and filter, it actually seems to drive better the more I drive it, but it needs to be addressed asap.
what all do I need to do?? drop pan, remove filter, and I am assuming once I have part in hand, it will be obvious which to replace.

I hate automatic transmission with a passion but its a Toyota and way worth fixing, I want to do it properly. my cell is 423-457-6866 please call and school me on transmissions, and this situation please, Art 423-457-6866

Vehicle: 2002 sport edition Toyota 4runner 4x4 3.4L 6cyl i

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P0753 Open or short in shift solenoid valve No, 1 / No, 2

There is either a short with the shift solenoid or a open with the shift solenoid. When P0753 is outputed you would need a shift solenoid valve No.1. What happens when the vehicle is running and it develops a open or a short the ECM turns off. The shift solenoid can be replaced without removing the valve body.  Replace both solenoid no. 1 and no. 2

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