Skip the auto shop - Our mechanics make house calls

Q: Idling while driving

asked by on

I recently got some service did. The issue was that my car would idle up when I'm drive it would hesitate going up a hill. So I got it checked and they said I should replace my catalytic converter, map sensor, and thermostat and also advised on a throttle body cleaning to stop it from idling when I drive after all the service it still idles up while driving what can I do

My car has 344125 miles.
My car has an automatic transmission.

The main issue you have here is the number of miles on your car. With this many miles, most cars would have been completely worn out. Unless you have taken meticulous car of your car, it is often necessary to start with the obvious problems. I suspect this is what has happened here. The MAP sensor, thermostat, and a throttle body cleaning are a good beginning to fix your car, but there are bound to numerous other issues. The catalytic converter is an emissions component that in most cases won’t cause drivabilty issues.

Keep in mind, doing what they have suggested is a good beginning. Your car has a lot of miles and is likely to have several more issues. You are always entitled to a second or third opinion, but keep in mind, the shop is entitled to the time already spent on your car. If you want another opinion, I recommend having your cars driving symptoms diagnosed by a qualified technician, such as one from YourMechanic.

Good luck!

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Idling while driving

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: There is air escaping from the front radiator grille on my Chevy Cruze. It started when I shut off the engine and lasted about ten minutes.

Hi there. The hissing sound that you are hearing at the front grill of your vehicle is the radiator having a split core. I recommend replacing the radiator and not driving the vehicle with the conditions that the radiator is...

Q: Hear cracking sound

Hi there. If you are getting a noise like you are describing it is typically caused by a failing hub bearing assembly. I would typically get the vehicle in the air and run it to isolate the location of the...

Q: My temperature gauge keeps making it look like my car is overheating the temperature gauge moves up to the red. I already changed the thermometer

Hey there. Your cooling system consists of several components. Thermostat, radiator, heater core, and water pump are just a few. Since the thermostat has been replaced, it is more than likely not the cause of the engine running hot. If...

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...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...