need help
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need help
i drive a 2004 chevy silverado 2500hd 4x4. my truck has a unusual humming coming from under the front end, i checked the front differential fluids and it was dry. i put a bottle of gear oil in it but the humming is still there. do i need to put more in, or is it something else?
#2
Hard to say without hearing the humming (maybe it just wants to be a Hummer ), but my WAG would be you now have a bearing or something going out due to not being lubricated. Does it always hum or just at certain speeds/RPMs?
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no it dont hum at certain speeds it hums at any speed and it dont matter where the rpm gauge is, the faster i go the louder the humming gets. its possible that its a bearing but i still think that its the front differential, its still low on gear oil, im going to top that off and see what happens then
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