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Thanks carnuck. been away for awhile. Gonna check out your info. Be nice to get away from all that junk under the hood.

To MudderChuck, thanks for the imput. It was the smog diverter diaphrams that were toast because the check valves in the air injection manifold had burnt through cause of age. let hot gasses from exhaust manifold back through the air injetion to the diverter. I know I,ll find more things I,ll...

Thanks j.b. Finally got the time to snoop around some more and the bolts for the #4 and #6 exhaust were actually loose. Tightened em up and sound has diminished. Saturday I'll replace gaskets. Should have checked that earlier but after a full day playing with the air injection stuff, I was...

Hello, new to here and have a problem. I bought a Grand Wagoneer 10 years ago and been slowly restoring it. Just replaced the smog diverter valve, drivers side injection manifold and all three check valves. The two exhaust valves were destroyed which burnt out the diverter and drivers side air...