any one has Transmission Rattle like me ?

[topazsparrow]

Originally Posted by mav1178

In case you don't know what a dual mass flywheel is:

http://www.zf.com/brands/content/en/...dmf_SACHS.html

The root cause (if this is happening when shifting into neutral) is either a ECU tune (most likely), or a bad transmission/clutch design that is prone to noise when load input is changed suddenly (least likely).

-alex

Is the FRS flywheel a dual mass as well? That certainly might explain the shakes the motor gets at 1650 - 1850 rpm in neutral... and the noise.

EDIT: More info about dualmass flywheels: [ame="http://www.youtube.com/watch?v=DbvP5EvpUbA"]ZF zms dual mass flywheel for passanger cars - YouTube[/ame]

[mav1178]

It's more of a "what manual car doesn't have dual mass flywheels" these days...

Ever since Aisin came out with the compact 6-speed RWD transmission, virtually all the cars running the Aisin 6-speed is running a dual mass flywheel.

-alex

[Rampage]

Originally Posted by Rayme

Yea but the MR2 is just a FWD drivetrain in the wrong side.

Nah, it is a FWD drivetrain on the RIGHT side!

[Turk]

Originally Posted by kALMIGHTY

This happens to me. Climbing into somewhat steep driveways, I slow down but I don't want to downshift into 1st while the car is moving so I keep it in 2nd and go really slow and when I try to give it a bit of gas, I hear that rattle. Is this the issue you're talking about? If so, I'm concerned. I only got my car a 10 days ago.

Do your engine a favor and downshift into first.

[Rayme]

Originally Posted by mav1178

It's more of a "what manual car doesn't have dual mass flywheels" these days...

Ever since Aisin came out with the compact 6-speed RWD transmission, virtually all the cars running the Aisin 6-speed is running a dual mass flywheel.

-alex

But the FR-S doesn't have one uh

[kALMIGHTY]

Originally Posted by Turk

Do your engine a favor and downshift into first.

It's really hard to shift into first unless I'm completely stopped or crawling speeds of less than 5 kph. I mean, I can downshift into first at higher speeds but it requires a lot of force to get into to the gate, and it just feels like I shouldn't be doing that.

[Turk]

Originally Posted by kALMIGHTY

It's really hard to shift into first unless I'm completely stopped or crawling speeds of less than 5 kph. I mean, I can downshift into first at higher speeds but it requires a lot of force to get into to the gate, and it just feels like I shouldn't be doing that.

I don't own an FRS or BRZ, but I understand the feeling you're getting, but I also think the engine is probably "lugging" in 2nd gear up the hill at low speeds.

[ShowTime_DW]

Originally Posted by Sigh-on-Rice

If you're talking about the noise that happens when you're in neutral, it might be the direct injection noise.

Thats what I am talking about!!!

[Sigh-on-Rice]

Originally Posted by ShowTime_DW

Thats what I am talking about!!!

Then it's not your transmission. It's direct injection. And it's normal. When I bought the car, the sales person explained about this noise to me before I left. I'm glad he did. I would've been worried too.