I was getting a squeal on start until warm. It wasn't my serpentine belt, so I assumed it was the timing chain issue mentioned here. I had a death in my family and traveled 2700+ miles round trip and now the sound is gone. It doesn't happen on start, when cold or hot, it's simply gone.
QUESTIONS:
Are the shoes/guides functioning properly, but because they are making noise people replace them?
Is it possible to diagnose bad shoes/guides without the noise?
What's the worst that could happen here?
In the interim, I've not noticed any timing related issues or fuel consumption changes. I'd hate to have the dealer tear open my engine for a diagnosis to solve a nuisance issue that may have self resolved. But, at the same time, I don't want to have to replace the engine due to ignoring it either. I'm due in for my scheduled oil change this week... Maybe I'll mention it to the tech...
All comments welcomed!
Timing Chain Shoes or Guides???
Moderator: volvite
Timing Chain Shoes or Guides???
Last edited by aadadams on Tue Dec 13, 2011 10:10 am, edited 1 time in total.
Re: Timing Chain Shoes or Guides
It's probably not the chain, tensioner guide problem you think you have. If it were, the whining would never go away, you'll hear it @ some point during the drive.
I don't think much damage would be done as the oil filter will trap the shavings, if it is the problem.
I don't think much damage would be done as the oil filter will trap the shavings, if it is the problem.
I must admit, hearing that is comforting. Though my serpentine belt and tensioner were eliminated as a possible causes when they were replaced.
I got the noise at cold start until warm for about a two months or so as I prepared to swallow the repair bill. When the death in family occurred, I had no choice but to drive it down to Louisiana. By the time I got there the engine made the noise incessantly while the engine was running warm or cold. About 700 miles into the return trip the noise stopped... and I've not heard it make the noise again. Not even a whimper...
I said all of that to say that I was reasonably sure that it was the timing chain issue, but hey I'm content to leave well enough alone...
Thanks for replying!
I got the noise at cold start until warm for about a two months or so as I prepared to swallow the repair bill. When the death in family occurred, I had no choice but to drive it down to Louisiana. By the time I got there the engine made the noise incessantly while the engine was running warm or cold. About 700 miles into the return trip the noise stopped... and I've not heard it make the noise again. Not even a whimper...
I said all of that to say that I was reasonably sure that it was the timing chain issue, but hey I'm content to leave well enough alone...
Thanks for replying!
Just keep monitoring for any noises. I wouldn't worry about it too much if you don't hear anything abnormal. Since you described the noise as a squeal that seems to point to the serpentine belt, tensioner, or pulleys. When the timing chain shoes go bad, the noise is more of a whine. At least that's my experience. How many miles on your pathfinder?
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