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Re: 97 gmc sonoma 4.3 problem
hey kieth, iv been having annoying power problems with my 94 4.3 sonoma like it was real week at high rpm and idled very rough,i took the CAT off,looked in there and there was a big melted mess.so i gutted the cat out and WOW,all fixed.
i dont know if ur having that same problem,but u might look at it, does the check engine light come on?
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