tranny or rear??
07-24-2012, 03:45 AM
#1
10 Second Club
Thread Starter
iTrader: (4)
Join Date: May 2011
Posts: 466
Likes: 0
Received 0 Likes
on
0 Posts
tranny or rear?? on my 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
Trending Topics
07-25-2012, 11:35 AM
#10
TECH Enthusiast
iTrader: (5)
Join Date: Apr 2011
Location: The Great State of Texas
Posts: 561
Likes: 0
Received 0 Likes
on
0 Posts
Sometimes when Cats get old, they can rattle or hum. This happens at certain RPM's or at a certain speed/gear combination.
This is just a guess without hearing the car for myself. It could be something else. Just one thing to consider.
This is just a guess without hearing the car for myself. It could be something else. Just one thing to consider.
07-25-2012, 04:52 PM
#11
but it sounds like the noise is still there when the rpms drop and he is coasting at 55. I would lean towards checking u joints and rear. check the rear fluid level, put the car on stands, remove the driveshaft and check the u joints. while its out rotate the tires and listen close for any noise in the rear. if a bearing is failing you should hear something
