Took my car to the garage, the exhaust/catalytic converter was blown. They fixed it, but the next day the engine had no power, was juddering and the check engine light came on. Apparently this was an ignition coil failure.
Did they mess up with the repair, or is this just an unrelated failure?
P.S. the same garage replaced the ignition coil less than a year ago.
I don’t think the technician messed up the coil just to make a few more $$. To me ,this incident is unrelated.
Mileage is not listed, but if previously only ONE of coils was replaced, thn they all have a good chance to wear out around the same age, so depending if you have 4- or 6-cylinder, it is a good chance you have 2 or 4 more coils to go.
what model toyota do you have? which motor?
how involved was exhaust/cat repair?
did they replace 1 cat? or more?
a complicated Y pipe or pipe assy?
It’s an older car, 2001 Avensis with VVTi engine.
I think the coil pack that was replaced, so I thought that all the coils were new. Or is there more than one coil pack (sorry for my ignorance)?
Does this have a V6 engine?
If so . . . I believe Toyota was using waste spark coils at that time
This means that the 3 coils on the “front” bank also supplied spark to the “rear” bank
It’s basically a euro mid size ( U.S. compact) car, slightly larger than U.S. spec Corolla, but noticeably smaller than a Camry. No V6 is available, there are a couple gas I4’s and some diesel I4’s. The OP’s car either has a 1.6L, 1.8L, 2.0L or a 2.4L gas engine.
What about the spark plugs? Misfiring plugs can ruin the converter which in turn can cause the plugs to misfire more and once the converter is replaced the old plugs are still potentially killing the coil.
It’s a vicious circle.
It’s common for ignition coils to fail in pretty regular succession. My previous car had 4 of the 8 ignition coils (COP), fail within a 3 month span. Just one after the other every few weeks. I ended up trading it in before the rest failed.