Engine revving after long trip

[Mtneer001]

I have a 2006 Toyota 4Runner with 88,000 miles.

I took a long trip (400 miles) last week. I had been running the air conditioner most of the trip, but it was set pretty low.

Towards the end of the trip while I was driving on the interstate, the engine started revving out of no where.

On a flat road, the RPMs would jump up to 4,000 and then back down. It did this a couple of times. I turned off the AC and it seemed to work fine.

This is the first time it has done this. I try to maintain the truck as much as possible and get it serviced regularly.

Thoughts on what may have caused this?

Thanks,.

 

[88mustanggt]

my first thought would be the transmission is falling out of gear or (clutches slipping)

 

[Mtneer001]

thanks. i guess i'll have to take it to the dealership so they can check it

 

[20034RunnerV84x2]

Start with the simple stuff: Disconnect the battery for 10 minutes. Could be a small computer glitch, and at worse a transmission problem.

 

[Mtneer001]

Thanks for the advice.