Q: my car idles high and will not shift out of first gear

asked by on

the car idles high and will got shift and sometime will not start. when it does start it will not shift I have to do it by hand and it will only go 10 mph

My car has 90000 miles.
My car has an automatic transmission.

Hello - there are several problems which could cause the behavior you mention. A failed throttle position sensor can cause the high idle, and poor shift/no shift behavior you describe since the engine & transmission communicate with each other over how much the gas pedal is depressed. Any problem codes that are set (whether the Check Engine is illuminated or not) are valuable for diagnosis - most auto parts stores will read these for free for you. I would recommend having a car is hard to shift completed by a mobile, professional mechanic, such as one from YourMechanic, to diagnose this problem, get an accurate assessment of damage and cost estimate for repairs.

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
  1. Home
  2. Questions
  3. my car idles high and will not shift out of first gear

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

Q: Car temperature gauge is halfway. I just changed the thermostat. Why isn't it going down?

Hey there. There are a few other reasons aside from the thermostat that may cause the car to overheat such as a clogged radiator or potentially a faulty coolant fan switch. A clogged radiator may prevent the coolant from flowing...

Q: Problem with transmission and battery.

The brown junk is your radiator is the result of the dexcool coolant that General Motors uses in their vehicles. If the coolant is not routinely flushed out and replaced periodically it will break down. If air gets into the...

Q: Car idling low at stop

If you have a Check Engine Light, I would start there. Any codes that are found will aid in the diagnosis of your issue. It is possible that you could have an issue with your idle air control valve. I...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...