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post #1 of 3 Old 10-02-2008, 06:56 PM Thread Starter
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weird noise?

when i start my truck if i stand next to the stacks 5-15sec after i hear a sound like air is being sucked in the kinda a pop its not very loud but it goes away pretty much immediately after and i never hear it again. Any ideas of what to check?

Thanks, Kevin

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post #2 of 3 Old 10-03-2008, 07:01 AM
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Kinda hard without being there. Could have always been there and you just hear it now because of the stacks. It may be your GPR kicking off, it makes a pretty loud pop!!


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post #3 of 3 Old 10-03-2008, 06:40 PM
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it is the EBPV(exhaust back pressure valve). garauntee it. all it is, is a baffle up by the engine that closes temperarely to keep more heat to the engine so it warms up faster.


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