Q: idle high while moving and when stopped it will idle normal its a manual

asked by on October 31, 2017

My truck will not run right when i drive it. I will put it in gear, let out the clutch then it will automatically will keep climbing through rpms even though my foot is taken off the gas pedal I take it out of gear while moving and it starts revving extremely high it doesn't have a rev limiter so i put it in 3rd to try and idle it down to come to a stop and feather the clutch just enough so it doesn't rev so high and bog the engine a little so i don't blow the motor or over heat it. I pull it out of gear at a stop and it idles normal and then I take off again i went through every gear and in between gears it revs extremely high and i don't touch the gas in between gears and in reverse it doesnt rev, just while moving forward. i was on the freeway today and i didnt touch the gas at all it like drove by its self. then when i take it out of gear it revs really high. i dont have cruise control on at all

My car has 130000 miles.
My car has a manual transmission.

You need to check the throttle body and pedal when engine is not running to make sure it opens and closes all the way and does not bind at all. If it binds then disconnect throttle cable and see if moving the throttle body by hand it still binds? if it does then replace throttle body. If all this works normal then replace the idle air control valve.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Back lift gate latch stuck in locked position

Hello, the lift gate latch is released electrically, so there is no way to unlock it with the panel in place. The lift gate interior panel must be remove for access to get the lift gate open. Once the lift...

What could be the reason the front shakes when I go over 60mph.? Thank you for your help.

Hi...unbalanced wheels and tires, tire defects and bent wheels, and loose, worn out suspension parts are the typical causes of vehicle front end vibration at speed. It is also possible that loose, or defective, motor mounts can be a cause...

65 Thunderbird all wheels locked.

The method to release a stuck parking brake on your model depends on where the fault is. If the cable is seized to the sheath, then the cable will have to be released (cut) within the drum brake assembly. If...

Related articles

The Best Used Cars to Buy for Highway Driving
Do Do you spend hours each week on the highway for work? Maybe you just live in a very rural area and have to drive for 30 or 45 minutes to get to the grocery store. Whatever the case, your...
How Car Keypad Locks Work
Pioneered Pioneered by Ford, keypads let you lock, unlock without keys Pioneered by Ford, keypad door systems began appearing on high-end car and SUV products in the early 1980s. Ford took advantage of the then-new digital computer revolution – the...
The Best Used Cars to Buy If You're an Uber or Lyft Driver
Are Are you thinking of becoming a driver for Uber or Lyft? That could be an exciting career change – you’ll get to meet a lot of interesting people, and if you love to drive, what better way to spend...