4L60 makes noise.
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Teching In
Joined: Nov 2014
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4L60 makes noise. My work truck is Suburban 1500 1999 year with 5.7 and 4L60. When I drive it with speed more 25 but less then 65, transmission makes load noise. Do somebody knows, what is can be wrong? Thank You and sorry for my English.
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Joined: Aug 2010
Posts: 7,323
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From: Ann Arbor, MI
The first step is to be sure the trans is making noise.
Often noise from that area is caused by a bad U-joint or noise that propagates from the rear end. A worn out trans mount is another common source of noise.
If that doesn't help you, tell us what the noise sounds like.
A metal-on-metal whining sound could be worn out bushing in the trans, but there are few reports of that on this forum. Usually it is bad trans mount or U-joint.
Often noise from that area is caused by a bad U-joint or noise that propagates from the rear end. A worn out trans mount is another common source of noise.
If that doesn't help you, tell us what the noise sounds like.
A metal-on-metal whining sound could be worn out bushing in the trans, but there are few reports of that on this forum. Usually it is bad trans mount or U-joint.
