Tranny OR Rear ?.all TX members plz help
07-24-2012, 03:47 AM
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Tranny OR Rear ?.all TX members plz help on my stock 99 z28 4l60e ivd been notecing some sort of huming but only when car goes into over drive 45+mph..i thought tranny od was going out ,but ivd been doing some test as the humming starts i keep going and about 55mph,put her in neutral and it keeps doing it therefore i belive its not the tranny..when humming is going on i can keep acelerating with no hesitation..car shifts smooth when daily driving and at wot ,i havent seen any problems..could it be the reat possibly? driveshaft ? any input is appriciated thank you
07-24-2012, 08:15 AM
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I would have to say it is your rear and not your tranny. When my rear went out, it would whine around 45 like a **** to the point where the car just wasnt driveable and then eventually the whole RPM/speed range withing about 10mins. When I left of the accelerator, the whinning would stop and when I got back on it, it would start again. This happened once you hit anything above 20mph. I had an M6 though. I've never heard of any tranny's whinning or humming so if your car still shifts smooth, I would lean towards the rear.
07-24-2012, 03:08 PM
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does it only do it while accelerating or mainting a speed?
what about when you get up to 55 and let off the gas and coast down?
if it stops as soon as you let off the gas, then its definitely the rear end.
what about when you get up to 55 and let off the gas and coast down?
if it stops as soon as you let off the gas, then its definitely the rear end.
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07-24-2012, 03:24 PM
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It does it when reaching 45+ mph.i keep going and humming stays the same,if I let off while still in od,as speeds decrease slowly it still does it just much less ,but if I throw it in neutral it keeps doing it even thou it's out of gear.
07-27-2012, 02:53 AM
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asking for help nothing wrong with that ,we all help each other with our experiences with our cars and things that have gone bad ,and we fixed..now go ahead and post one of ur useless threads to this forum
