My 93 Chevy truck backfires and acts like its not getting air but when its in park it idles fine. Is that the muffler or exghaust? Perhaps cattilic converter and if it is can we just cut it off and dr
A back fire would be in the timing or a fuel issue. If it was a plugged catalytic converter, it would be holding back, exhaust hiss under load, a glowing orange converter.
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