Third From Texas
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It doesn't happen all the time and it only happens just as the temp hits 200 (but several seconds before the fan actually engages). It stops after a couple seconds.
I know the clutch and fan were replaced in this truck back around 2017 and under 4000 miles ago (likely *well* under).
My assumption is that it's a bearing (it's the tell-tale squeal of a dying bearing) but I'm uncertain as to the things I can check when I tear it down. I've read a number of threads and am familiar with the temp switch, solenoid (I just had it apart to clean), and scrolled thru the TM looking for clues.
I assume it's not a bearing on a belt tensioner or anything that would be noticeable at all running times.
The belts *look* to be in order (AC, charging systems, etc all functioning normally).
So I figure either water pump or a bearing in the fan clutch (more suspect of the later do to the timing of the squeal).
Thoughts?
I know the clutch and fan were replaced in this truck back around 2017 and under 4000 miles ago (likely *well* under).
My assumption is that it's a bearing (it's the tell-tale squeal of a dying bearing) but I'm uncertain as to the things I can check when I tear it down. I've read a number of threads and am familiar with the temp switch, solenoid (I just had it apart to clean), and scrolled thru the TM looking for clues.
I assume it's not a bearing on a belt tensioner or anything that would be noticeable at all running times.
The belts *look* to be in order (AC, charging systems, etc all functioning normally).
So I figure either water pump or a bearing in the fan clutch (more suspect of the later do to the timing of the squeal).
Thoughts?