Originally Posted by ol trunt
The bus should have a check engine light--is it on?
Yes. The light is on and I will look for the codes from the mechanic. Thanks!
Originally Posted by sdwarf36
Just a wild ass guess-when the muffler fell,it somehow folded the pipe-restricting the exhaust flow.
No. I checked for that when I was strapping the muffler to the frame and off the ground. It was a clean break right at the muffler. ----- break --- (assuming you can tell that is a picture of the pipe to the cadillac converter --- pipe to muffler and break. It appears to have been welded in the past at the same location.
The purpose of my questions was to try to fix the problem so I could get the bus to my shop in Madison, WI. I have all the tools and space to look over everything, top to bottom. Its currently sitting 2 hours up the road and only able to do 35-40 mph tops. My plan on Sunday was to get the muffler off the ground and just go ghetto muffler all the way home. But, that didn't work. The power issue remained. My plan was then to cut out the old muffler and replace it, then clamp properly. All things that can be done in a parking lot with few tools. I am learning that the issue is most likely not just a back pressure problem, but something else may have happened. I assumed it was the muffler because it drove fine for 45 min prior to the muffler falling and losing power. (engine power)
Instead of driving back and forth (4 hour round trips) I found a mechanic who can get it on their lift 10 miles from where its at. It will drive, just slow and loud. Ill see what he can find and let you guys know. I have only spent 45 min with this bus total.
Thanks again for the ideas. I am hoping that its a quick and inexpensive fix. But we all know that's not why we want to work on buses. ha ha