Another in the “series” of RV repair and maintenance.
I took the Winnebago to my local Workhorse (chassis W22) shop and they confirmed an exhaust leak. When they opened the manifold to replace the head gaskets, the bolts which were rusted broke requiring a new bolt kit. Additionally, the lower part of the oil dipstick holder – right next to that area – was rusted and needed replacing.
Following is what things look like now with no rust:
The cost was approximately 5.5 hours of labor and $250.00 in parts.
I don’t know how long this was a problem, but I’m guessing that it occured subsequent to the last service, September ’07, because the same shop did the service and they always do a road test.