2004 Fleetwood Flair 8.1 engine fan noise
I thought I'd post my strategy for taming the fan noise on my 2004 Fleetwood Flair. My coach has a 'hatch' in the middle of the engine doghouse. Removing it and looking inside made it clear the doghou...
Forum Discussion
From what I can understand looking in the programming tables for an 8.1, it looks like 175 degrees seems to be considered 'full operating temperature' so I can't see where going to a 180 thermostat will make any difference in mixture control. I've seen quite a few posts where people have done that without any issues with smog checks which is the only other problem I could see. We all get such horrendous mileage I really don't think anyone would notice a change with that. Since a 180 shouldn't open until it reaches 180, the engine should not run any cooler than that even in the winter. I'll see what happens when it cools down but I can't think of any reason a code would be set just because of a 15 degree lower tstat.
