Hello. Looking to see if someone can provide some insight into this problem before I start throwing darts(money) at it.
I recently did the head gaskets on my 2004 Disco along with all the associated gaskets in the tear down. The plugs(NGK BKR6E-11 stock no. 2756) and wires(magnecor 8mm) only had about 20,000 miles on them so other than re-gapping the plugs to 1mm I left them alone. The front passenger side O2 sensor had about 4,300 miles on it so I left that alone as well. During the job I noticed that the RH(passenger side) exhaust manifold gasket to the head didnt quite line up with the front hole. I also broke off one of the 3 bolts on that same manifold going to the exhaust pipe. Not sure if either of those are related to the codes.
Once I got everything back together I drove it and immediately had leaking coolant burning, I could smell it. I looked under the hood and my two heater pipe clamps and my throttle body heater clamp were leaking. Coolant was all over the engine. Apparently I didnt tighten them enough and they havent leaked since. Again, not sure if any of this is related. Sometime either during or right after the leaking(cant remember) it started idling rough and felt a little weak and I got 12 DTCs. If I remember correctly(I have since cleared them) they were...
P0155
P1300
P0302
P0304
P0306
P0308
and 6 others I cant recall that are associated with the 4 even numbered cylinders.
To summarize the potential problem(s) is(are)...
1. A leaking exhaust manifold to exhaust pipe connection caused by 1 out of 3 missing bolts.
2. A leaking head to exhaust manifold gasket caused by a new but misaligned gasket(manufacturing error or wrong part).
3. Coolant got inside the O2 sensor plug.
4. Bad 20,000-mile-old O2 sensor.
I have the RAVE manual and couldnt find a troubleshooting walk through for these DTCs. My mechanics manual for my 2002 Civic gives walkthroughs for all the DTCs, things like checking voltages on the harnesses and such. Does RAVE not have a troubleshooting index?
Hoping someone with experience or Disco savvy can help me eliminate some of these potentials.
Thanks.
I recently did the head gaskets on my 2004 Disco along with all the associated gaskets in the tear down. The plugs(NGK BKR6E-11 stock no. 2756) and wires(magnecor 8mm) only had about 20,000 miles on them so other than re-gapping the plugs to 1mm I left them alone. The front passenger side O2 sensor had about 4,300 miles on it so I left that alone as well. During the job I noticed that the RH(passenger side) exhaust manifold gasket to the head didnt quite line up with the front hole. I also broke off one of the 3 bolts on that same manifold going to the exhaust pipe. Not sure if either of those are related to the codes.
Once I got everything back together I drove it and immediately had leaking coolant burning, I could smell it. I looked under the hood and my two heater pipe clamps and my throttle body heater clamp were leaking. Coolant was all over the engine. Apparently I didnt tighten them enough and they havent leaked since. Again, not sure if any of this is related. Sometime either during or right after the leaking(cant remember) it started idling rough and felt a little weak and I got 12 DTCs. If I remember correctly(I have since cleared them) they were...
P0155
P1300
P0302
P0304
P0306
P0308
and 6 others I cant recall that are associated with the 4 even numbered cylinders.
To summarize the potential problem(s) is(are)...
1. A leaking exhaust manifold to exhaust pipe connection caused by 1 out of 3 missing bolts.
2. A leaking head to exhaust manifold gasket caused by a new but misaligned gasket(manufacturing error or wrong part).
3. Coolant got inside the O2 sensor plug.
4. Bad 20,000-mile-old O2 sensor.
I have the RAVE manual and couldnt find a troubleshooting walk through for these DTCs. My mechanics manual for my 2002 Civic gives walkthroughs for all the DTCs, things like checking voltages on the harnesses and such. Does RAVE not have a troubleshooting index?
Hoping someone with experience or Disco savvy can help me eliminate some of these potentials.
Thanks.
