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Sloooooooow Down!!!!
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899 Posts
Discussion Starter · #1 ·
In my 2003 chipped 1.8t, auto trans, nb--i get this thumping or fluttering noise under the hood when the ignition is turned off.

Put in new bkr7e plugs-also a forge dv was put in when nb was chipped by apr in july.
 

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180 Degrees out of faze
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841 Posts
Quick guess is the secondary coolant pump is what you are hearing.
 
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