Late last winter, my '08 Frontier started making a loud whining noise when I started it. This only happened when it was cold (below freezing) outside AND the engine was cold. It wasn't a belt squealing sound, it's not quite as high pitched and grating. The noise faded away after 30 seconds to a minute of driving. It would vary with RPM, louder and higher pitched with higher RPM's.
I did some reading on Frontier forums, there can be a belt tensioner issue. I decided to replace the tensioner and belt, and figured I'd do the idler pulley while I was in there. I still had the issue, but warmer weather came and it's been quiet since. Well, until yesterday when it was 28 degrees when I walked out of work.
So, I'm trying to figure out next steps. I'm debating just taking it to my mechanic, but wanted to see if there were any other thoughts first. Of there remaining likely causes (PS pump, AC compressor, alternator, and fan clutch), I think the only thing I'd want to tackle myself in my garage would be the fan clutch.
TLDR - '08 Frontier, V6, 196K miles. Loud whining noise at startup when engine and weather is cold, but does not sound like a slipping belt. Varies with RPM. Goes away in a minute or two. Have replaced belt and tensioner.
Thanks!
I did some reading on Frontier forums, there can be a belt tensioner issue. I decided to replace the tensioner and belt, and figured I'd do the idler pulley while I was in there. I still had the issue, but warmer weather came and it's been quiet since. Well, until yesterday when it was 28 degrees when I walked out of work.
So, I'm trying to figure out next steps. I'm debating just taking it to my mechanic, but wanted to see if there were any other thoughts first. Of there remaining likely causes (PS pump, AC compressor, alternator, and fan clutch), I think the only thing I'd want to tackle myself in my garage would be the fan clutch.
TLDR - '08 Frontier, V6, 196K miles. Loud whining noise at startup when engine and weather is cold, but does not sound like a slipping belt. Varies with RPM. Goes away in a minute or two. Have replaced belt and tensioner.
Thanks!