Q: Rough idling

asked by on October 11, 2016

Firstly the radiator had a leak n then overheated, the headgasket had blown n the cylinder head had fo b smoothed out, it isnt overheating or anythin now those issues have been resolved but once i put it in drive it starts to have a rough idle
My car has an automatic transmission.

It sounds like your throttle body is dirty. You may want to check it and make sure it is not sticking. Check for loose connections within the system also. Your car may also be idling rough due to your blown head gasket. If the issue was not fixed properly then it will continue with rough idling. Lastly, when you have your head gasket replaced your timing belt/chain had to be taken off. If the timing isn’t set properly your car may run, (roughly) but you won’t be able to drive it. If you’d like, a professional from YourMechanic can come to your home or office to inspect your throttle body, and address the rough idling issue, and make possible 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

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

Which Toyota engine I can use to replace a Hyundai Tucson engine

Hello. I would not recommend having this done as the cost to do this (absent a free motor and labor), will likely exceed the value of the car. You may want to consider selling the Hyundai and purchasing the Toyota...

No bus

Hello and thank you for contacting YourMechanic. First check all of the fuses on the fuse box in the cab for any of them that could be blown out. Sometimes fuses can pop when hooking up a fully charged battery...

Timing belt is tight and yet appears to be slipping several teeth when belt is rotated,

This is okay since there are more notches on the belt than the amount on the sprockets. Once you aligned the first time the belt marks will almost never line up perfectly again. The marks are used to put the...

Related articles

How a Car's Cooling System Works
Have Have you ever considered the thousands of times explosions occur in your engine? If you're like most people, that thought never enters your mind. Every time a spark plug fires, the fuel and air mixture in that cylinder blows...
The Best Used Cars to Buy If You're in a Wheelchair
Being Being in a wheelchair means you have a very specific list of demands, and requests for your vehicle. The main focus is of course how you will get in and out of the vehicle. There are some other aspects...
How to Replace a Lost or Stolen Car Title in Rhode Island
When When it comes to your vehicle, one of the most important documents you have is the car title. This is proof that you own your vehicle and makes it possible for you to transfer ownership, and sell your vehicle....