Question about 1999 GMC Suburban

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Will my 99 chevy suburban run without catalytic converter. I have it in the shop right now and the guys are telling me thats whats wrong with it. However the guy i got the truck from told me he had them cut off to make the pipes louder.see the problem is with this i have had it at a shop where i live and they fixed my truck and told me that my check engine light was gonna keep coming on cause someone removed the catalytic converter. The message read Catalytic defiency in engines bank one and two.that was fine cause my truck ran. Then i broke down this weekend out of town and these guys are trying to tell me that my truck wont run without the converter. I just wanna know if these guys are trying to get me for my money. Thank you

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Cut mine out a year ago, truck runs fine, check engine lights stay on. you can get dummy plugs to eliminate that problem

Posted on Jul 21, 2010


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Trouble code

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You will find a bad O2 Sensor behind the converter or a bad catalytic converter on the bank 1 side of the exhaust manifold. This is the one on the drivers side.

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