On higher mileage vehicles, an engine misfire may develop and/or the Check Engine Light may illuminate due to a failed ignition coil. It is not uncommon to replace all the coils when the first one fails in order to prevent return trips to the repair shop.
Car Problem Reports
Lexus ES300 Ignition Coil May Fail After 100,000 Miles
Lexus ES300 Problem
Average Mileage: 129,975 mi (101,500 mi - 154,400 mi)
Visitor, 2001 Lexus ES300, 154,400 mi
Ignition coil #5 failed
The check engine light was on. I took it to Jerry Deluca's Auto Repair on Williams St., Staten Island. They told me the two front fuel ratio sensors needed to be replace for $610 including labor. He also recommended I change the spark plugs and ignition wires for another $300. He said it took 1 1/2 hrs diagnosing my problem and charged me $155 for diagnosis labor. A total of $1,065. Just to verify, I took it to the Shell Station Garage on Forest Avenue, Staten Island. They diagnosed it no charge and told me three ignition coils needed to be replaced. He said he would replace them and tune-up the car for $550. I went with the Shell Station Garage on Forest Avenue. I had to pay Jerry Deluca for the diagnosis labor to retrieve my car though.
replaced 1 ignition coil
Visitor, 2000 Lexus ES300, 145,000 mi
I have the same problem on #2, bought the part and my mechanic can not locate where it belongs. Lexus told him the same place as his book states it will be but he can't find where the part goes, any help would be grealty appreciated