I have an '04. This is the only ground I seen at first look, which looks like its behind the valve cover on the driver side firewall. Is this what your looking for? PM me if you want more pics.

 

Thanks very much. I think all of my grounds are intact then. I was just reading another post that spoke of a valve cover ground but perhaps that only exists in certain markets.

 

Just thinking about this. How does coolant get behind a liner of the coolant passageways are only at either end of the block?

 

@Stefan1986 check that ground, if it gets loose you can get all kinds of odd behaviour. Do not be too quick to jump to the block, you know you have an issue that seems to be number 3. If you are burning coolant enough to have a wet spark plug and have no cats then you should get a bit of white smoke, like a cool winter morning, most of time.

Try this clean the #3 plug up so it looks new, gas and a soft brush works fine.
Re-install the plug
Drive to work then to home
Pull the plug - what does it look like after that drive

And the Rover V8 is not that bad of an engine, it was used in a large number of vehicles. It is the emissions controls and age the caught up to it,and in the case of Disco owners all the guys who owned it before you

 

Thanks Richard, I will give that a try and post my findings. It smokes a bit on cold start but smells more like unburnt fuel then sweet like coolant would smell. Smoke goes away completely after a few mins of idling. The misfire is present and constant regardless of engine temperature or ambient. Gets really bad under load. I can try adding an additional ground strap, I have already added an additional to the coil pack bracket.

 

Interesting. I have an 02' and I don't have that ground anywhere on my engine. Don't have the one from the valve cover as well. The only ground I can find is the one from the negative battery terminal. Does anybody NOT have a ground wire like me? Wonder if I add a ground if it will fix my gremlins.

 

My '99 had a single wire on the passenger side from the back corner of the block to the firewall. Hard to find unless you know it's there or you're doing the head gaskets. I remember in the Atlantic British video they said that some trucks have one on both sides, some have one side, and some have none -- without any apparent reason for the difference.
I don't think there are any that go from the actual valve covers. That wouldn't make much sense as they are insulated by the rubber gaskets and there are no ignition components grounded to the outsides of the covers.

 

yeah, the valve cover one didn't make any sense to me as well. I went to the junkyard last week an pulled the ribbon off a disco thinking I'd add one to mine to see what it does. Went out earlier and tried to add the ground ribbon to the back of the drivers side head, I can't get a bolt started in there , not enough room to get my fingers in there to even start the bolt. Need to try to secure it to the block to see if it actually fixes anything. It's odd that between all the Disco's that there is such a variation as to whether there is 1, 2 or no ground. Would make me think it doesn't actually do anything. There's probably a Land Rover engineer somewhere laughing at all of us.

 

that's strange. i just went out and looked at my '01 and it has the ground strap on the driver's side going from the block to the fire wall. both my '04's have it as well.