Changing the exhaust manifold on a Chevy trailblazer 4.2 I6 can be done without removing the engine or exhaust pipes. You need a 13 mm socket with a 2" extension for the 11 manifold bolts. 10 mm ...
I bought a replacement manifold for my 1990 Winnebago 454 at AutoZone fairly cheaply. I don't remember the exact amount I paid. But, it doesn't stick out as being expensive. Also, I replaced it myself. But, others have pointed out the risk with regard to exhaust manifold bolts. If they break, it will be a problem. Last, I would not run a gasket.
Nov 18, 2014 · Reinspect the exhaust system if the smell of exhaust gas comes through the cab. Make sure there are no leaks from the new catalytic converter and that all exhaust pipe connections are snugly fit together. Figure 5. Test drive the truck to ensure proper installation. Featured Video: How to Replace Catalytic Converter
The 2002 Ford escape exhaust manifold will cost approximately $550 to replace. The manifold will cost $300. The labor cost will consist of approximately 4 hours of labor.