Does anyone know what a R.E.A.D. unit failing or entering failure sounds like? I hate to ask this question, but this is where my mind is going.
I had the rear-motor mount replaced ~3 weeks ago, and when I got it back I noticed a strange sound from the engine.
It's somewhere between a faint metallic whine and gritty hum that only occurs off-throttle. Sound seems like it emanating from the rear right side of the engine.
It is not present during warm up or idle. I don't hear it during acceleration or steady throttle. Only when I lift and coast the engine.
I first wrote if off as my ears playing a trick on me or perhaps hearing old and natural sounds masked by the engine rattling with blown mounts, but I don't recall hearing this at all before and as the temperatures dropped into the freezing ranges the past 2 weeks it has become more pronounced during cold start driving.
My belts and idler pulley are only 16 months old.