Should I preemptively replace my plug wires and ignition coils at 150,000 miles and / or how should I know when to replace them?
I'm about to do a 150,000 mile tune-up. I'm planning to do a Transmission Flush, oil & filter change, change spark plugs and replace valve cover seals (front is visibly leaking). At this point the engine runs great and has never blown a code.
I know that Spark plug wires eventually degrade and that coils will eventually fail. Should I just wait until the engine blows codes, or should I replace earlier?
I'm about to do a 150,000 mile tune-up. I'm planning to do a Transmission Flush, oil & filter change, change spark plugs and replace valve cover seals (front is visibly leaking). At this point the engine runs great and has never blown a code.
I know that Spark plug wires eventually degrade and that coils will eventually fail. Should I just wait until the engine blows codes, or should I replace earlier?