well she is running real rough and now the service engine soon light is comming on but it goes off then comes back on.
any ideas in general of where I should start to diagnose this p[roblem?
Maybe O2 sensor or egr valve?
Just kinda happened all of a sudden.....
any ideas in general of where I should start to diagnose this p[roblem?
Maybe O2 sensor or egr valve?
Just kinda happened all of a sudden.....