[Javier Leon]

What's the worst thing that happen should I get it checked by Ford
2015 Ford fiesta st
Was going about 70 to 80 and meant to put it into fourth and put it into second and fast as possible drop it back to nuetural ?
Reved super high didn't get to look how high that's how scared I got ?

 

[Chuckable]

If you're not hearing any strange noises and not seeing any fluid leaks then you may have not caused any damage. The only way to know is to drive it. If it drives ok then you may have gotten away without a problem. From your description you didn't let the clutch fully engage in 2nd gear. So maybe the RPM didn't spike as high as you think.

Or, you engine is about to blow up in a blaze of glory any minute ... just kidding!

 

[OrangeFist]

rev limiter would have taken care of that, yes?

 

[RodMoe]

Rev limiter would cut fuel but not stop a mechanical overrev by the wheels driving the motor through the transmission.. These engines can take a bit of over rev I have mine set to redline at 7350 or so now so if you have no od noises or rattles you should be fine..

 

[reddog99]

rev limiter would have taken care of that, yes?

No. What happened here is that the engine was mechanically forced to rev up. The rev limiter just retards the timing and/or shuts off the fuel.

Edit: Damn! Rodmoe beat me by three minutes. :cyclops: