Question about 2003 Toyota Tundra

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2000 toyota tundra has no throttle response during extreme cold

No throttle response during cold weather 10 degrees or colder only. It is hard to start and I have to push pedal all the way to floor to get vehicle to move and it will shift extremely hard when I put it into gear. This happens only during first startup. After I warm the engine up I have to shut engine off then restart and throttle works again. What is problem? sounds like a cold weather sensor but what part would I need to replace?

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  • donald_sherm Dec 05, 2008

    If the problem was the TP sensor or ECT sensor why would it start working again right away after shutting off engine and restarting?

  • donald_sherm Dec 05, 2008

    If the problem was the ECT or TP sensor or carbon buildup on throttle plate, why would it start working again immediatley after I shut engine off and restart? I may have to repeat this until throttle works. This ONLY occurs during extreme cold weather. During warm weather I have no problem.

  • Toyota Ed May 11, 2010

    Most likely because you have an electronically controlled throttle.

  • Toyota Ed May 11, 2010

    Please look at your gas pedal. Is there a large wiring connector on it? If so, this is the TP sensor, and it may have an internal issue. Please advise.

  • Toyota Ed May 11, 2010

    Sounds to me like you have some carbon buildup around the trrottle plate. Please respond back if you would desire additional assistance.

  • yadayada
    yadayada May 11, 2010

    Check the signal from the ECT sensor aginst the valve chart in the service manual


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This throttle body has a TPS ( throttle position sensor) and a Accelerator pedal sensor on it. The TPS is on the drivers side and the APS is on the pass side of the throttle body. When this happened your check engine lite came on then went off when it warmed up and acted normally. The code is still in History codes. Check it with a scan tool. I foget the code number but if it come up with the APS code in History, replace that sensor....not the TPS. It is a sealed sensor that gets moisture in it when the seal deteriates and it freezes in very cold weather.

Posted on Apr 11, 2009

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