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Erratic engine RPMs

Tiny
MANYPEOPLE11
  • MEMBER
  • 2005 NISSAN X-TRAIL
  • 2.1L
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 238,489 MILES
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.
Saturday, June 5th, 2021 AT 11:06 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
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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Sunday, June 6th, 2021 AT 4:54 PM

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