Vibration when brake stepped on at standstill, 2009 GU

[Hodge]

ahh ok mate yeah i think mine is a little more serious than that but also alot more of an intermittent problem i notice it only really happens when the economy button is on rather than power and maybe its once a week im thinking its when its trying to get into first gear on slow down to a halt im hoping its something simple like a pulley seizing up a little and not a rooted gearbox/stall converter problem.
but cheers for the reply mate

No trouble at all mate. Hope it works out for you.
When I first noticed mine it drove me nuts for ages, as I couldn't replicate the problem to find out what it was. Took me ages to figure out it only happened after car was pushed a little bit...
I'm not mechanically minded enough to even begin answering what could your issue be, especially in autos. Have you checked the oil in the auto ???

[Maughany]

hey mate yeah i here ya i fitted the 3" exhaust on sunday morning last week and it was rattling on one spot doing my head in so fixed it the next night after work, now after alot of driving this weekend its slighlty rattling at the rear tail piece from sliding across on the rubbers gotta sort that out nothing worse that a rattling noise haha.
the oil in the auto is fine and i have new filters and fan belt on the way atm waiting for it to be delivered and ill give it a service next weekend and hope it sorts it out, if not i will start the enjoying process of trying to diagnose it lol

[Hodge]

hey mate yeah i here ya i fitted the 3" exhaust on sunday morning last week and it was rattling on one spot doing my head in so fixed it the next night after work, now after alot of driving this weekend its slighlty rattling at the rear tail piece from sliding across on the rubbers gotta sort that out nothing worse that a rattling noise hahal

Mine is somewhere around the gearbox area or after... When it does it, it resonates so loudly it's hard to pin point where exactly it's coming from. Putting something up against it stops it. But I cannot see it contacting anything metal at all. One day I'll get the culprit!

[Maughany]

Mine is somewhere around the gearbox area or after... When it does it, it resonates so loudly it's hard to pin point where exactly it's coming from. Putting something up against it stops it. But I cannot see it contacting anything metal at all. One day I'll get the culprit!

Wellllllll i believe i may be able to help you somewhat with this. my first drama with the exhaust rattling was because the is a bracket on the side of the gearbox which has a mount for the exhaust, now my bracket for the new exhaust was roughly 3mm off so i couldnt get the bolts in again but i seemed to have enoughed clearance so i didnt stress but what was happening was without that bracket being bolted to the gearbox mount the flexible join in the exhaust had shifted over about 10mm towards the gearbox tunnel and was rattling on there. now the bolts there are an absolute f**k to get to and i found it best using a ratchet spanner but because its so hard maybe have a look if they have bolted it back in or if there is eve a bracket on that system to bolt it into the factory position again.

so if you slide underneath the car level with the gearbox support bracket you should see the flexible mesh join, see if that has enough movement left and right to hit on the underbody??

[Hodge]

so if you slide underneath the car level with the gearbox support bracket you should see the flexible mesh join, see if that has enough movement left and right to hit on the underbody??

Just popped open another stubby, and will go get the creeper out and have a look at this !

[Maughany]

yeah let us know how you go, you will see the bracket for the exhaust on the passenger side of the gearbox tucked right up near the top of the tunnel towards the front of the car side of the gearbox support bracket which runs from one side to the other of the gearbox tunnel. confusing to read but ill take a pic and post it for you if you cant find it

[Hodge]

Is this it mate? If so mine is pretty solid. Although I need to check it when is hot and actually rattling. It's the bracket coming off the exhaust and goes up and tucked away next to gearbox. getting dark here hard to see 100%.

[Maughany]

yeah mate that's it my bracket was designed differently but basically yeah i found it was rattling from that area to the side of the tunnel.

[Hodge]

I'll take a closer look tomorrow and put a spanner to everything relating to exhaust.
My rattle is loudest if it's hot, and when I arrive home. My driveway has a bit of an incline. So once I park the car, it sit's pointing upwards somewhat. The moment I stop I can hear the rattle big time while holding the brake. Then, putting on the hand brake, and releasing the brake the car settles a bit backwards and the rattle goes completely away.
So something along the driveline becomes fully rested against the exhaust that dulls the rattle away.

[Hodge]

Also in regards to your issue mate, I recommend you create your on post/thread about it, as you'll get more views that way , surely somebody might have an idea.