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HELP! Car wont run properly

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    Ok so my 2007 scion tc has been sitting for a month in the cold weather because the clutch went out and I didnt have the money to fix it. i went to start it and the battery was dead so i jumped it and it ran fine for like five min then it just shut off. I noticed when i hit the gas after it died the throttle plate didnt move in the throttle body i used to be able to hear it move, when i try to start it after it shut off on me it just turned over so i left the key on a min and came back and hit the gas and i heard the throttle moving so i tried to start it and it started right up. Idk what is wrong i think it is the TPS but i am not sure.
    wrathhaven wrote:
    Ok so my 2007 scion tc has been sitting for a month in the cold weather because the clutch went out and I didnt have the money to fix it. i went to start it and the battery was dead so i jumped it and it ran fine for like five min then it just shut off. I noticed when i hit the gas after it died the throttle plate didnt move in the throttle body i used to be able to hear it move, when i try to start it after it shut off on me it just turned over so i left the key on a min and came back and hit the gas and i heard the throttle moving so i tried to start it and it started right up. Idk what is wrong i think it is the TPS but i am not sure.


    This can happen if the throttle body throat is gummy/dirty. If it was dirty and then you stopped the car. That gum hardened and that car will stall because the ECU (computer) will adjust the throttle plate based on idling needs. If it can't move, it will stall. Take a look at the throttle body throat, and spray some throttle body cleaner on a rag (not down the throat!) and clean up the throat. If you don't want to use throttle body cleaner, MAF sensor cleaner is safer for the plastic intake manifold. And it should get rid of all that gum/varnish.

    I've had it happen before during an oil change where the car was stopped for awhile, cooled down. When I went to start the car, it immediately stalled. The throttle plate was nasty! Now I clean it every 6 months!

    I just tried cleaning the throttle body i completely removed it and cleaned it very well. i put it back on and the car started for about 3 min and just cut off again what else could it be
    wrathhaven wrote:
    I just tried cleaning the throttle body i completely removed it and cleaned it very well. i put it back on and the car started for about 3 min and just cut off again what else could it be



    try this.. take the intake air tube off, have someone sit in the car, turn the key to the on position, without starting the car. Have them push the gas pedal down and you watch the throttle plate. Does the throttle plate move smoothly? Check that, might still be binding causing the stalling.
    sciontc_mich wrote:
    wrathhaven wrote:
    I just tried cleaning the throttle body i completely removed it and cleaned it very well. i put it back on and the car started for about 3 min and just cut off again what else could it be



    try this.. take the intake air tube off, have someone sit in the car, turn the key to the on position, without starting the car. Have them push the gas pedal down and you watch the throttle plate. Does the throttle plate move smoothly? Check that, might still be binding causing the stalling.


    Every time after it dies the throttle will not work at all. even if you cycle the ignition a few times still nothing. IDK what else to try
    wrathhaven wrote:
    Every time after it dies the throttle will not work at all. even if you cycle the ignition a few times still nothing. IDK what else to try

    ahh.. okay then it definitely sounds like the throttle body itself is dead. There is no replacement part to allow you to replace just the electric motor inside the throttle body. Have to buy the entire thing. Not cheap either. Might want to check junk yards if you can. But make sure you get the later model throttle body, toyota did update the part. In other words get one from an 09 or 10, it was updated around then.

    Sorry to give ya that news, but it has happened with the older design. what I think happens is gum/varnish/dirt builds up and gets into the inner workings of the motor and causes it to bind/shut down. Then of course that friction builds up and begins to kill the throttle plate motor. that's my theory anyway. I came up with that theory when I saw mine get really dirty, ever since then cleaning it every 6 months (fall/spring) to make sure that doesn't happen to mine. That's if my theory is correct.

    I think you should look at junkyards for an 09 or later throttle body, unless you want to buy a new one from the dealer, it was somewhere near $700-800!

    yup found it at trdsparks $745! at toyotaparts.com (metro toyota in kalamazoo)
    http://www.toyotapart.com/22030-0H031.html they're showing $717 so that's a little lower than trdsparks. But still not cheap.


    I changed the throttle body and it still won't work could the pedal be out or something
    you need an obd2 scanner to check out all the sensors.. If you don't have that, then you'll have to get it to a knowledgeable shop. to go step by step in trying to repair all this isn't something we can do online. If you got a new throttle body and put it in and it won't work.. then you have issues with your wiring. If it's used and won't work, then it might just be another bad throttle body. To say it's the gas pedal sensor, then a check engine light should be on. I think it's time for you to get this to a shop.. Otherwise it's just guessing forever, which isn't productive.
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