Q: Idle is very high

asked by on October 05, 2016

Idle is very high when gas pressed goes higher and won't idle down. Or idles down very slowly to about 2600 rpm. Replaced idle control valve and cleaned infected areas, used gas additive to clean injectors, thinking about replacing TPS, any ideas?

My car has 168000 miles.
My car has an automatic transmission.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Shaking and revving upon startup.

It is normal for the engine to rev a bit higher than normal when a car first starts up. But, after a few seconds it should come back down to normal. In cold weather, it might stay high for a...

Car cuts off while driving

The are dozens of potential causes for your issue. Since the problem goes away after the vehicle sit and cools down, my guess is that the problem is electrical. This is because electrical resistance goes up when heat increases. When...

Battery keeps dying out

Hello. Typically when these symptoms occur with the security light on, it is always the ignition switch (https://www.yourmechanic.com/services/ignition-switch-replacement) that is causing this. It can also be a short in the electrical system, but most of the time, it is caused...

If the rear impact bar and energy bar are broken from a rear-end collision, is the car roadworthy and safe?

Hi there. The vehicle can be driven, but it will not provide any protection against another accident from the rear. If you want to be safe driving this vehicle, then the damage needs to be repaired as soon as possible....

Currently 165 65 R14 tires are mounted on my car. Can I get 165 70 R14 tires? What is the difference between the two?

The 165 on the tire size means how wide is the tread across the tire. The 65 is the side wall size to the tire and how much the tire is considered a low profile tire or a high profile...

Can a side engine mount leak? 2003 Acura MDX

Hi there - yes, the motor mounts (https://www.yourmechanic.com/article/how-long-do-engine-motor-mounts-last) in your Acura are hydraulic, containing a small amount of fluid, and can leak if damaged, or if they fail. I would recommend an engine mount replacement (https://www.yourmechanic.com/services/engine-mount-replacement) by a mobile, professional...

Clicking noise after car has been started while idling

Hello, thank you for writing in. The ticking noise may be coming from the alternator itself, or from the drive belt that powers it. When the vehicle is cold it can be loud and need a moment to warm up....

How much would it cost at a shop to get a steering column assembly for a 2005 dose Stratus automatic

Hi. The average cost for a Steering Rack Replacement at a typically privately owned repair shop is between $600 and $1,000. Labor costs are estimated between $280 and $450 while parts are priced between $400 and $800 depending on who...

Prius master warning light on

To resolve this most efficiently you have to start with a Toyota re-manufactured, dealer supplied, OEM battery pack. That is the only way to rule out the "possibility" of a fault, of some sort, in the battery pack. Once you...

Related articles

How to Buy a Good Quality Idler Pulley
The The idler pulley system drives a car’s alternator and is part of a belt and pulley system that also covers power steering, the air compressor, and other devices. The pulley is essential; with all of the important equipment that...
Symptoms of a Bad or Failing Air Cleaner Temperature Sensor
If your car is having trouble starting in the cold, the Check Engine Light comes on, or idle quality is poor, you may need to replace the ACT sensor.
Symptoms of a Bad or Failing Exhaust Gas Recirculation (EGR) Valve
Common signs include engine performance issues like decreased power and acceleration, rough idle, and the Check Engine Light coming on.