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Old 10-05-2015, 03:56 PM   #9
mlee
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Drives: ZLE & ZR2
Join Date: Oct 2008
Location: Conroe, TX
Posts: 38,001
Quote:
Originally Posted by 96ss1664 View Post
Check your coolant level for the heat exchanger, the dealer did not fill mine all the way up and it still had air in the system.
^^^^^^THIS is the answer to your question

Quote:
Originally Posted by Samson2029 View Post
for a manual zl1, you may get a flutter noise or buzz at 800-900 rpm.
install a 5 percent ati balancer while they do the job. will get you some HP. and a tune is not required if there is no CAI replacement.
What..
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