Originally Posted by JeffKeryk
Our beloved 2006 TSX with 195K miles recently broke down; it was the #1 coil. It was about 15 miles away and was towed to a great shop not far from home.
FYI this car has been garaged and well cared for...
I would have loved to do the diagnosis and repair but due to a recent surgery could not do do.
So the repair cost was over $200; I don't recall exactly.
A Delphi coil was installed. Later I bought 3 more from Amazon for about $40 each based on good BITOG advice.
The car is like new, and it ran pretty darn good before the 3 new coils.
Gas mileage has improved, but the real benefit, to me anyways, is the improved performance.
Rock solid idle, pulls strong thru upper RPM.
If you can afford a breakdown, wait until individual coils die. Your call.
For me, the piece of mind and restored performance is well worth replacement.
Coils are wear items.
I have 8 new OE coils for our Tundra with 197K miles, waiting for installation.
Going forward, I will replace coils on any of my cars with over 180K miles, or sooner.
Yeah the Delphi's are only $30 compared to $40-50 for the Denso or NGK's. If one died I would definitely replace them all anyways.
Originally Posted by Geoff
If you have short coil to plug wires, replace those. In my case with a Chevy LS3, the clip in the boot (clips onto top of plug) is extremely fragile. They break off in the boot and cause misfires.
As the other guy said, I have coil on plug's, not coil packs. I thought they were one in the same.