Q: Car misfires when the weather is cold and while idling

asked by on

My car has around 90,000 miles. I don't drive it that much. Also, it sat for about half a year. Now that I drive it, it's been misfiring. It occurs when the car is idling and when the weather is bad. The dashboard shows the check engine light on. I had the ignition coil replaced. Last year, I had the spark plugs changed too. There are no problems when the car reaches higher speeds though. What could be the problem?

Hello. Thanks for writing in about your 2000 Lexus SC400. It may be necessary to replace all of the ignition coils in addition to having the ignition coil wiring inspected for damage in order to determine why your engine is misfiring. It is also possible that you have a problem with the fuel injectors. I would suggest that you have a certified technician, like one from YourMechanic, inspect your vehicle to determine why your Check Engine Light is on in order to pinpoint that problem that you are experiencing and make the appropriate 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. Car misfires when the weather is cold and while idling

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: would a bad oxygen sensor keep my truck from starting?

The O2 sensor will not cause the no start. The no start can be caused by the fuel pump or the ignition system. You should check the engine for spark and fuel pressure, when it is not turning on to...

Q: Joshua how much will it cost to replace all coils and plugs

Hello, thank you for writing in. The technician's do not have the ability to create proper quotes due to the pricing of labor and parts being dependent on your location. With that being said, I can share some of the...

Q: Sputtering, misfiring, power loss and gain

Hey there: There are usually two different mechanical problems that cause the symptoms you're describing with your Pontiac Firebird. The first and most common is a problem with the ignition coil, (especially in mid-90's GM V-6 engines) or due to...

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...