Clogged Cats: Symptoms, Diagnosis & Pics
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Just 67,000 miles on the cats. I have just a N/A 4.8 with some bolt ons and a cam. An Ultra Flow muffler, and factory manifolds. It gets really hot here and when the ambient temp. started to go up (around May), things started to get shakey.
I think it was mainly the un-burnt fuel hitting them from the overlap of the cam. I've heard hot starting on is really hard on cats too. I doubt that was it, but it probably didn't help.
I think it was mainly the un-burnt fuel hitting them from the overlap of the cam. I've heard hot starting on is really hard on cats too. I doubt that was it, but it probably didn't help.
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