auto tranny-rattling at low rpms - Transmission Forum

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auto tranny-rattling at low rpms
Tuesday, August 30, 2005 11:41 AM
ok, im unsure if anyone cmae across this but here goes; i recently bought the cav-99 z24 auto. i noticed that around 2000-3000rpms goin around 20-30mph i hear a low to mid rattling noise depending on how much i step on the pedal. after adding the b&m shift+, thus increasing the tranny line, i hear the rattling alot louder because since the b&m controls the shift timing, im in the gear a bit longer (im only saying this from the feel from the car). i am scheduled to go for a tranny flush at 76000miles, but just curious if its something more.....to worry about. i undersdtand the isuzu tranny is known for the 'harmonic noise', but from what i read, only from the 5 speeds. thanks in advance.






Having a Z is close enough to having an import.....

Re: auto tranny-rattling at low rpms
Tuesday, August 30, 2005 2:26 PM
*bump






Having a Z is close enough to having an import.....
Re: auto tranny-rattling at low rpms
Tuesday, August 30, 2005 2:37 PM
I think it is technically called torque converter shutter. Mine does this, I do not think it is a good thing, mine does it after I bet the hell out of the car at the track. I have been told that I need to get a new torque converter, but when I changed my tranny fluid it definitely helped.

I have 117,500 miles on mine 99 auto, and I race it weekly. Mine has been doing this on and off for about 1 year, and still works fine for now.




PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
Re: auto tranny-rattling at low rpms
Tuesday, August 30, 2005 3:26 PM
ah ic, so getting a tranny flush should temporary stop the yelling..err i mean rattling thx






Having a Z is close enough to having an import.....
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