errolmenendez
Member
2009 LR3 4.4 US of A. 132k miles.
updated video below.
OK, so this is my first post. On other forums i've been a bit more contributory, but i concede, this post is purely selfish.
I'm panicking because the noise sounds engine- not accessory related like my mechanic is telling me. BUT PLEASE READ ON! He told me it was my fan clutch. In the second portion of video i posted to youtube, you can see i've stopped the rotation of the fan (with AC off of course) and the noise does not change. in fact you can hear a slight ticking sound related to the fan clutch until it starts rotating up to speed.
here's the run down (history).
I had an alternator failure a few weeks ago. Alt started howling, voltage dropped down to 11-something. replaced the alternator. I previously replaced both accessory belts and the fan belt tensioner a few months prior to alternator issue so i didn't need to change them when i did the alternator.
3 weeks later, said rebuilt alternator failed (my fault for using a quick-fix parts store brand), so i swapped it out again, this time with a Bosch unit and all was well.
truck sat for 4 days or so, and when i started it, i heard a horrible clacking noise (0:32 seconds of youtube video). it was rotational and rpm based, and didn't sound tensioner related so i thought, welp, there goes the motor. i drove it to my mechanic- engine felt fine, no CEL just that horrible sound. I left it over night. he calls me at 8 am asking why i dropped it off. "Did you start it", i replied. He had it running while he was on the phone with me. perfectly quiet. i sent him the video i recorded the night before of the horrible sound, and he deduced it to be a fan clutch. i picked it up, went on my way. had not yet ordered the fan clutch.
Today, i start it with no trouble at all. truck was silent. ran and drove fine, then a lighter version of clacking started coming back (0:45 seconds of youtube video).
so.. does this noise sound familiar to anyone? i plan on removing both accessory belts and running it to rule out drive belts/tensioners. i'll do that when i have time. any suggestions are more than welcomed.
I appreciate anyone taking their time to help me out.
-Errol
updated video below.
OK, so this is my first post. On other forums i've been a bit more contributory, but i concede, this post is purely selfish.
I'm panicking because the noise sounds engine- not accessory related like my mechanic is telling me. BUT PLEASE READ ON! He told me it was my fan clutch. In the second portion of video i posted to youtube, you can see i've stopped the rotation of the fan (with AC off of course) and the noise does not change. in fact you can hear a slight ticking sound related to the fan clutch until it starts rotating up to speed.
here's the run down (history).
I had an alternator failure a few weeks ago. Alt started howling, voltage dropped down to 11-something. replaced the alternator. I previously replaced both accessory belts and the fan belt tensioner a few months prior to alternator issue so i didn't need to change them when i did the alternator.
3 weeks later, said rebuilt alternator failed (my fault for using a quick-fix parts store brand), so i swapped it out again, this time with a Bosch unit and all was well.
truck sat for 4 days or so, and when i started it, i heard a horrible clacking noise (0:32 seconds of youtube video). it was rotational and rpm based, and didn't sound tensioner related so i thought, welp, there goes the motor. i drove it to my mechanic- engine felt fine, no CEL just that horrible sound. I left it over night. he calls me at 8 am asking why i dropped it off. "Did you start it", i replied. He had it running while he was on the phone with me. perfectly quiet. i sent him the video i recorded the night before of the horrible sound, and he deduced it to be a fan clutch. i picked it up, went on my way. had not yet ordered the fan clutch.
Today, i start it with no trouble at all. truck was silent. ran and drove fine, then a lighter version of clacking started coming back (0:45 seconds of youtube video).
so.. does this noise sound familiar to anyone? i plan on removing both accessory belts and running it to rule out drive belts/tensioners. i'll do that when i have time. any suggestions are more than welcomed.
I appreciate anyone taking their time to help me out.
-Errol
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