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Rattling coming from area between motor and transmission


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sixx1983
New User

Mar 20, 2011, 2:58 AM

Post #1 of 5 (3273 views)
post icon Rattling coming from area between motor and transmission Sign In

91 GMC Seirra 1500 5.0 (305) over 100 thousand miles. There is a loud rattling noise coming from the flywheel area. I have had the flywheel and torq converter checked, both are in good condition. It makes the sound when you give it gas then it quiets when the engine levels out. You don't hear it when idleing.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Mar 20, 2011, 4:42 AM

Post #2 of 5 (3271 views)
Re: Rattling coming from area between motor and transmission Sign In

Exactly how did you check these things? Did you remove the transmission?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



sixx1983
New User

Mar 20, 2011, 11:14 PM

Post #3 of 5 (3263 views)
Re: Rattling coming from area between motor and transmission Sign In

Yes the transmission was removed, flywheel was taken completely off.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Mar 21, 2011, 5:52 AM

Post #4 of 5 (3257 views)
Re: Rattling coming from area between motor and transmission Sign In

I don't know what to tell you except try to get it up on a lift and try to pinpoint the location while duplicating the sound.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom Greenleaf
Ultimate Carjunky / Moderator
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Mar 21, 2011, 10:04 AM

Post #5 of 5 (3248 views)
Re: Rattling coming from area between motor and transmission Sign In

Just a thought: Does this model use a center support bearing for driveshaft? If so, those can make quite a racket when failed,

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