I have an '05 Suburban with 5.3 T engine.
It has 165k miles. In working to a baseline of maintenance, I put in new plugs (ngk platinum...same as were in it) and acdelco wires.
Since making that change, I'm getting P0300... With misses in 2 and 7....the ration is about 1:10 on 2 vs 7...
Where should I start to troubleshoot this?
It has 165k miles. In working to a baseline of maintenance, I put in new plugs (ngk platinum...same as were in it) and acdelco wires.
Since making that change, I'm getting P0300... With misses in 2 and 7....the ration is about 1:10 on 2 vs 7...
Where should I start to troubleshoot this?
Last edited: