80 series mystery noise

Hi Mr Breeze - My '94 80 series developed a rattle which turned out to be in the main muffler (right hand side) where an inside baffle came loose. Bit different to yours, took a while to work out where the noise was coming from. Exhaust shop located the problem on the hoist............ good luck!

Gentlemen,
I can't help but as I also have a '94 #80 GXL auto may I ask how many klicks you have on the clock?

Mines got exactly the same noise from the same spot at low idle - but I know the cause it is the tap extension from the underbody water tank

MrB,

We had a 90 model 80 series, before we bought our current 97 model. On passenger side, a support for the dash had broken off, spot weld, in behind, or just above the kick panel. The dash moved about a bit on corrugations. Can't remember whether it made much noise, but a dodgy place to weld, with all wiring and other flammables about. I just put a tek screw in it. Good enough at the time, sold it before the tek let go.

I'd be checking things like rear transmission mount, or something caught between chassis/body/trannie. Get underneath, and bang around with a rubber/nylon hammer.

Hooroo...

Thanks all for your help.
Bob when you mentioned the dash it made me have a closer look this morning.
It was a plug to nowhere branching from the wiring harness behind the LHS kick plate.
The plug was rattling against the body ,making a hollow tinny noise.
Easily fixed!!

Hey
Check the wiring behind the kick panel...it might be rubbing....this is where the diff lock computer lives for cross axle diff locks...
Andrew

I had a similar noise and it was stones on the side step and lodged in the grooves under the side step.
Cheers