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Scion with Pedal issues?

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Old Feb 23, 2021 | 04:52 PM
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Default Scion with Pedal issues?

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I did a drive in a Scion where the gas pedal wouldn’t do anything until you pushed it around 20% down.
When it did give gas, it thought it was supposed to be giving however much it normally should do at 20%.
I told my instructor about this but he just had me do an exercise.

Any ideas?


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Old Feb 23, 2021 | 11:53 PM
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Originally Posted by Yoickson

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I did a drive in a Scion where the gas pedal wouldn’t do anything until you pushed it around 20% down.
When it did give gas, it thought it was supposed to be giving however much it normally should do at 20%.
I told my instructor about this but he just had me do an exercise.

Any ideas?
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So it has lost some power. Is there a check engine light on? Does it idle smooth?
Old Feb 24, 2021 | 12:42 AM
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How about tightening up the throttle cable adjuster by the throttle body......cables stretch. Mine had slack and all it was was adjusting the slack with the adjuster. Follow cable towards tb and right where the bare cable comes out there is a threaded part bolted to a bracket.
Loosen the nuts and move the cable cover threaded part away from the tb and magically the slack goes away. 2- 10mm wrenches is all it takes and it is right up top in front to left of battery when looking under hood. Do it, you'll get your 20% back.


Last edited by MR_LUV; Feb 24, 2021 at 02:10 AM.
Old Feb 24, 2021 | 09:17 PM
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Yeah the check engine light is off and it idles fine.
Old Feb 24, 2021 | 09:19 PM
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The car is owned by the drive school not me, so I doubt I could do that.
Old Feb 24, 2021 | 10:45 PM
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Originally Posted by Yoickson
The car is owned by the drive school not me, so I doubt I could do that.
Oh haha. Well I guess you're just going to have to deal with it. But now that I know its a driving school car I could imagine the driving school would slacken the throttle to limit overall speed and have a bit of a dead zone so you can't just take off abruptly.
Old Feb 24, 2021 | 10:48 PM
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Suggest it to the instructor, point out the floppy pedal. Then open hood and point to the part like in the pic and tell him it needs to be adjusted and impress them with your mechanical prowess...............bonus points!
Old Feb 24, 2021 | 10:49 PM
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Originally Posted by mrrcom
Oh haha. Well I guess you're just going to have to deal with it. But now that I know its a driving school car I could imagine the driving school would slacken the throttle to limit overall speed and have a bit of a dead zone so you can't just take off abruptly.
Didn't think about the governor effect, lol......
Old Feb 25, 2021 | 12:01 AM
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Originally Posted by 04_Toaster
Didn't think about the governor effect, lol......
I was thinking if the gas pedal was floppy too. I'd imagine if the cable was messed with intentionally maybe they would correct it with extra spring but i dunno. I was looking at your picture and just thinking if it was that loose could the cable come off the pulley? The adjustment must be all the way out.

thinking about it you'd probably need the weight of the pedal flopping down to keep the cable taught so it wont come off
Old Feb 25, 2021 | 02:03 AM
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Hoping my cable doesn't stretch any more because I'm about maxxed out on adjustment. would have to use washers on bracket to move it further back to get any more slack out........or buy new throttle cable.
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