Noisy
The Tradewinds has developed a very loud noise, hard to describe. Sounds like an exhaust noise. All pressures, temps are ok. No loss of power, sound driving me crazy, there is a smell and when we arri...
Forum Discussion
I regress. I see you have a 2003 coach so no DEF injection but you do have EGR and you do have a particulate reduction system that needs cleaned out or the cannister exchanged when the exhaust backpressure warrants it (you get a 'check light on your instrument cluster.
With a tier 4 non DEF engine as with a compliant engine, underhood (or under the bedroom in the case of a pusher) engine temps are higher due to the EGR and you must be doubly sure all the cable routing as well as plastic parts and hoses are well clear of the EGR plumbing because the plumbing is at exhaust gas temperatures when the engine is operating.
With a Tier 4 final engine, the underhood temps are even higher because the selective catalytic reduction components operate in the excess of 1100 degrees.
Why engine manufacturers have gone to ceramic engine components and changed the airflow patterns. Heat kills any engine so it must be properly managed.
I'd still take it in and have it plugged in and the ECM read. Just looking underneath tells you very little (other than if a physical component got to close to the heat producing exhaust system.
My 2 cents and what I'd do if I were you.
With a tier 4 non DEF engine as with a compliant engine, underhood (or under the bedroom in the case of a pusher) engine temps are higher due to the EGR and you must be doubly sure all the cable routing as well as plastic parts and hoses are well clear of the EGR plumbing because the plumbing is at exhaust gas temperatures when the engine is operating.
With a Tier 4 final engine, the underhood temps are even higher because the selective catalytic reduction components operate in the excess of 1100 degrees.
Why engine manufacturers have gone to ceramic engine components and changed the airflow patterns. Heat kills any engine so it must be properly managed.
I'd still take it in and have it plugged in and the ECM read. Just looking underneath tells you very little (other than if a physical component got to close to the heat producing exhaust system.
My 2 cents and what I'd do if I were you.
