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Old 10-16-2013, 06:48 PM   #1
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Camaro weird rattle

Have a 96 z28 and I got this weird rattle it sounds like loose exhaust but is more significant when the defrost is on and I also get a weird vibration when the defrost is on. Don't know where to start. I'm also throwing a check engine light and have a loss of power at higher rpm.
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Old 10-16-2013, 07:19 PM   #2
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Could be leaves in the blower fan.

You need to get the code for the SES light.
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Old 10-20-2013, 03:35 AM   #3
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So the codes I have are. P1415 air system bank 1 fault, P0430 catalyst system low efficiency bank2,p0135 Ho2s11 heater performance.
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Old 10-20-2013, 10:55 PM   #4
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So I found that the rattle is from my exhaust. It's coming from the cat on the drivers side sounds like something is bouncing around in there.

I'm thinking of just removing it and installing an o2 simulator. But not sure exactly what that will do. Any insight would be helpful.
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Old 10-27-2013, 10:09 PM   #5
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mine rattles too. I found it was just plain loose. it knocks with other things around, specially if you start reversing or accelerating
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