Jim, on the 2.8 there's a machined pad on the side of the block, just forward of the knock sensor, where these wires bolt to.

On my 3.4 Donormaro motor, this area is occupied by the (now useless) crank position sensor. I just used one of the crank sensor's mounting bolts as a grounding post.

It's virtually impossible to even see where this is from the top of the eng. compt., but if you pull back the rubber inner fenderwell splash shield and peer in from the side, you can see the area underneath the pssgr's side exh. man.

Failing that, there's probably enough slack in the wires to find another, more accessible grounding point.

Can't remember fer sur what these wires are for, I recalll something about ECM grounds, but if so why would it run without these wires being grounded <img src="/forums/images/graemlins/confused.gif" alt="" />

HTH........ed