Erratic engine RPMs

2005 NISSAN X-TRAIL
238,489 MILES • 2.1L • 4 CYL • 4WD • AUTOMATIC
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MANYPEOPLE11
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I started my vehicle and my RPMs skyrocketed and then bounced up and down. I put it in reverse and it slammed full speed in reverse and my brakes are barely working. I put it back into park and the RPMs stayed max.
Jun 5, 2021 at 11:06 PM
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KASEKENNY
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This could be a couple things, but what I would suggest we start with removing the intake tube to the throttle body and restart the engine and make sure the throttle is not sticking.

https://www.2carpros.com/articles/how-a-throttle-body-works

Basically you will see the throttle plate is remaining open and not moving. So if it is stuck open then that is the issue.

I attached the info below on the throttle body but I suspect the cable is the issues and we need to start with making sure it is not stuck open.

Let us know if you have questions on this. Thanks
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Jun 6, 2021 at 4:54 PM