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  #1  
Old May 15th, 2019, 15:58
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TRCM TRCM is offline
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Weird noise - can't decide

Developed a noise today that sounds like a fan blade hitting something, but it is coming from the engine - trans mating area......didn't hear a knock with the stethoscope, and it seems to only show up when the trans is in gear.

Any ideas ?? This is my daily driver.

Maybe a loose flexplate bolt ??

It is a card in the spokes kind of noise (for those old enough to know about playing cards in your bike spokes)



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Last edited by TRCM; May 15th, 2019 at 17:07.
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Old May 15th, 2019, 19:19
Heavyopp Heavyopp is offline
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Re: Weird noise - can't decide

From what you describe it sure sounds like a flexplate to torque converter bolt backing out — better have a look before it causes real problems
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Old May 16th, 2019, 12:36
JRWinnett JRWinnett is offline
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Re: Weird noise - can't decide

Pop the flexplate cover off, and take a look. Check for any loose flexplate bolts, or pry on the flexplate to see if it is cracked.
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Old May 16th, 2019, 12:54
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Re: Weird noise - can't decide

Also noted today when I drove it to the shop, that it only does it when the engine/trans are hot (up to normal temps)

Driving it cold today the 3 miles to the shop it didn't do it, but if I torqued the engine against the brake, it would just start.

Took it to the shop as I have a recovering knee injury that was severely aggravated when I replaced my steering with the 1 ton SFR system 2 weekends ago, so I am not risking doing that again by getting in & out from under the jeep. I'll just pay this shop, whom I trust, to do it for me this time.
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Old May 16th, 2019, 14:53
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Re: Weird noise - can't decide

Keep us in the loop. My sister in laws wrangler does the same thing and I haven't been able to pin it down.
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Old May 17th, 2019, 14:28
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Re: Weird noise - can't decide

Just picked it up...it was exactly as I suspected...the torque converter bolts were loose and starting to hit the dust cover.


They tightened them up and now no more noise.......


.

Last edited by TRCM; May 18th, 2019 at 10:28.
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