[Mgs] Overdrive does not work when it is hot.

[Paul Hunt]

First thing is to tackle the easy stuff first and determine whether it is 
electrical or not, and the way to do that is connect an ammeter, positioned 
where you can see it, in series with the circuit.  You don't say the year, 
but if you have the dash manual switch then it is easiest applied there by 
removing one of the spades.  Remember that this circuit is unfused so you 
don't either of your ammeter connections coming into contact with anything 
else.  If you have the column switch then interrupt the 2-way connector 
where the yellow wire from the main harness joins the gearbox harness.  If 
you have a gear-lever switch then it will be a white/brown wire.  You should 
get between 800mA at 12v, and just under an amp when running.  If this 
suddenly drops when the OD drops out you know it is electrical, you then 
need a voltmeter or test-lamp applied to various places along the circuit to 
see where the break is.

PaulH,.

----- Original Message ----- 
>  When my OD gets hot it won't engage, it will actually disengage once it 
> gets too hot.