Coil Pack Bracket is Loose and Won't Bolt Down
#1
Coil Pack Bracket is Loose and Won't Bolt Down
My D2 had a fault code for #6. Replaced the plugs. Tested each spark plug wire and found no spark in #6. Bought new wires and two new coil packs, should they be needed. Chose to initially not pull off the top of the engine (plenum) and see if I could do it via the removal of everything that is not bolted down. What I found was (as usual) irritating. It would seem that someone previously had either replaced or attempted to replace the wires and/or coils and did not quite put it all back together. I can see why. The mounting bracket that holds the coils cannot be made to line-up with the threades holes on the engine block.
So ... I'm looking for help. What's in the way that won't allow it to bolt down? They are Bosch coils, so I will assume they are the right size and type. And ... are their two more holes and bolts on the bottom that I cannot see? Or will it all now just slip out when I get back to work and pull off the wires in the morning? However, that cannot happen until I can get the bracket mounted up flush against the engine. Otherwise I do not have enough room to pull off the wires.
So ... I'm looking for help. What's in the way that won't allow it to bolt down? They are Bosch coils, so I will assume they are the right size and type. And ... are their two more holes and bolts on the bottom that I cannot see? Or will it all now just slip out when I get back to work and pull off the wires in the morning? However, that cannot happen until I can get the bracket mounted up flush against the engine. Otherwise I do not have enough room to pull off the wires.
#2
Yes, that bracket has four holes. Two at the top and two at the bottom. If the bottom bolts are loosened you might be able to move the bracket enough to get the top holes to line up.
A number of people have reported that their misfires go away when the coil bracket is grounded properly, so that might be your problem right there.
A number of people have reported that their misfires go away when the coil bracket is grounded properly, so that might be your problem right there.
#3
Bottom Holes are also empty
Got pictures of both the side/bottom holes on the coil pack mounting bracket. They are also not attached, but in their case I do not see anything they would attach to.
I did track down that the bolt size for the top of the coil pack mounting bracket is M6 x 12. I'll get a couple of those and use a bit of leverage to see if I can get the coil packs to mount, and hopefully to ground.
I did track down that the bolt size for the top of the coil pack mounting bracket is M6 x 12. I'll get a couple of those and use a bit of leverage to see if I can get the coil packs to mount, and hopefully to ground.
#6
Now ... how do I get to those four spark plug wires on the bottom? Do I pull the four top wires so I can get down to the bottom four? Or do I pull out the complete coil assembly, put on the bottom four wires, thread them around the engine, then attach the coil assembly and mount the last four wires once in place?
#7
Nuts ...
The long-shot hope that the coil wasn't grounded, or that the #6 wire was bad did not turn out. In fact things are now worse. Now I've got misfires in #6 and #1. Could be the spark plug wire isn't properly seated on #1. I'll let the D2 and myself cool down before I recheck all connections.
I did attempt to pull/replace the coils, but that appears to be physically impossible without removing the plenum/top of the engine.
So ... with new plugs and new wires my next stop is replacing the coil packs. That is an unpleasant thought.
I did attempt to pull/replace the coils, but that appears to be physically impossible without removing the plenum/top of the engine.
So ... with new plugs and new wires my next stop is replacing the coil packs. That is an unpleasant thought.
#8
Got pictures of both the side/bottom holes on the coil pack mounting bracket. They are also not attached, but in their case I do not see anything they would attach to.
I did track down that the bolt size for the top of the coil pack mounting bracket is M6 x 12. I'll get a couple of those and use a bit of leverage to see if I can get the coil packs to mount, and hopefully to ground.
I did track down that the bolt size for the top of the coil pack mounting bracket is M6 x 12. I'll get a couple of those and use a bit of leverage to see if I can get the coil packs to mount, and hopefully to ground.
#10