Q: Recurring dropped coils in a 2006 Avalon w 66000 miles !!??

asked by on

Coils are going bad... started while the car had 50 K miles... I have replaced them all & the new ones also go " BAD"''' I w as told nOT to let the car "sit"... that did not matter recently. Do the 2006 Avalon -s have a problem ?

My car has 66000 miles.
My car has an automatic transmission.

There is no history of premature failure of Toyota OEM coils in this application. Aftermarket coils might be a different story, though. A typical cause of coil failure is faulty spark plugs that create a high resistance (or faulty wires but you have a coil on plug system). Lean operation can be a contributing factor as well. The latter can be ruled in or out using an automotive scope. Are you using Toyota OEM replacements? If not, that can be an issue in terms of the quality of the aftermarket unit you might be using. If you would like the required diagnostic steps performed to get this resolved, please request service and a certified mechanic will perform the required work right at your location. If you have further questions or concerns, do not hesitate to re-contact YourMechanic because we want you to make the most of your repair dollars and help you to get the best possible results.

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. Recurring dropped coils in a 2006 Avalon w 66000 miles !!??

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: Coolant level dropping quickly 2006 Saab 9-3

Hi there - yes, I would say this is a problem. Coolant loss can be deceptive - failing water pumps will sometimes only leak while running, blown head gaskets can leak into the engine crankcase, turning the engine oil to...

Q: Getting codes for misfires and a failed heat sensor

The codes listed indicate that your vehicle is running lean, and that there is a problem with the air fuel ratio sensor's signal and heater circuit. These are probably related to the misfire that you are experiencing. I would recommend...

Q: Heater system blows hot air when moving, but gets cold when car is stopped. Lower radiator hose is cold

The lower radiator hose should be much cooler than the top hose. As engine speed increases, so too does the flow of coolant through the heater core in the passenger compartment. If the heater control valve (operated by the temperature...

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...