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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Re: 2000 toyota tundra has no throttle response during...
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.
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Assuming the engine is in good shape and not in need of a major tune-up, check your carburetor choke. It's not closing when cold. Clean and adjust.
Get a service manual and follow the instructions. Far too complicated to cover here.
Also, make sure you know how to properly SET the choke on a cold start. Slowly push the gas pedal to the floor and let up. Start engine without touching gas. If it's REALLY cold, like 0 degrees, you can hold the pedal halfway down while starting, after setting the choke.
Hello rickyjkoch: My name is Roger and I will help with your question. With the engine off, press the brake pedal down several times. Hold the pedal down and start the engine. The brake pedal should drop 1 1/2 to 2 1/2 inches toward the floor. If the pedal stays up and does not drop the booster has a problem. However if you hear a hissing sound from the dash area of the brake pedal the booster should be replaced. Should you need further help please just ask. Please rate the answer. Thank You for using Fix Ya. Roger
Is it a long crank time before it will fire up or dow you have to touch the gas pedal? How many miles on the vehicle? Find a scan tool (borrow one or try local parts store) and check the computer, if this vehicle is OBDII equipped it should tell you if there is something wrong with any of the engine control systems by codes.
My 1993 Ford F150 has EEC IV computer system.........had a hard starting problem, long crank and had to floor the gas pedal...........I found the problem by watching the live data stream, seen that the ECT was stuck at 0 degrees C. I replaced the ECT and the problem went away. Good luck.
Have a mechanic take a look at your throttle position sensor and engine idle sensor. Make him manually adjust them as opposed to just putting in new ones. It may require that you have to have a higher idle than normal. Your underlying cause is going to be that I am sure you have a lot of miles on your engine.
Inlet air temperature sensor, also known as throttle body temperature sensor, will do that. Don't go changing TPS, or IAC, as suggested in other post. If they work good in warm weather, they should do the same in cold. Air inlet sensor tells system how much fuel to deliver according to temperature, as engine needs more fuel the colder it is when starting.