I have a stock svt with intake off road pipe. Im leaving work and its running normal then i go to forth gear and try to accerate and it barley goes. Now all of the gears doit. What could this be? And i have no check engin light.

I popped the hood and it looks like the valve cover gasket is leaking oil but would that cause a power loss?

Make sure your intake piping hasn't come loose at a coupling. Just a guess. I had that happen to me.

Does anybody know what it could be? And thanx i checked that thie but good call