What makes plug wire "high suppression"?
OT because this also happens to be a Nissan.... 2001 Xterra...
It's running fine and not setting any codes... but I'm hearing a tick coming
through the FM reception. Sounds just like the tat tat tat (no whining) you
get when a manifold gasket starts to leak, but definitely coming through the
radio reception. My assumption is a bad plug wire?? I couldn't see any
arching... of course, can't really see much on it.
Is it high resistance that makes it high suppression? Maybe one wire's
resistance is too low (if it's not arching anywhere)? I'm going to at least
check that all are fully seated on the cap and plugs. I'm wondering if
there could be a break inside one of the wires so it's arching inside the
I had it in for a brake job... wondering if I should be pushing for a
tune-up based on this, or if something else can be causing the signal. It's
definitely 1 tick per rev / changes with engine speed.