mean dad
Well-known member
2010 Toyota Matrix
Vehicle started running rough and would barely hold an idle. Sprayed starting fluid around the intake components with no joy.
Poked and prodded a bit, and noticed that one of the coils would emit a slight buzzing sound when the car was turned off (almost like it's releasing pressure, but electrical). Re-started the car and turned it off again several times with the same result. Just a short little bzzt sound.
Swapped in a new coil pack but the sound persisted. Traded the new coil for the one next to it in case my echo location skills were rusty, with no change. The #1 coil buzzes for a second when the car is turned off.
I'm about to replace all 4 coils to be sure but I hate wasting time and money.
Any guesses?
Vehicle started running rough and would barely hold an idle. Sprayed starting fluid around the intake components with no joy.
Poked and prodded a bit, and noticed that one of the coils would emit a slight buzzing sound when the car was turned off (almost like it's releasing pressure, but electrical). Re-started the car and turned it off again several times with the same result. Just a short little bzzt sound.
Swapped in a new coil pack but the sound persisted. Traded the new coil for the one next to it in case my echo location skills were rusty, with no change. The #1 coil buzzes for a second when the car is turned off.
I'm about to replace all 4 coils to be sure but I hate wasting time and money.
Any guesses?