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I may be wrong, but IMHO, it sounds like valve noise. Like the old cars where the valves would float on the cam at certain RPMS. Since these are probably
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08-23-2018, 02:55 PM
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#11 (permalink) |
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A True Z Fanatic
 
Join Date: Aug 2011
Location: Cleveland, OH
Age: 71
Posts: 1,830
Drives: 2010 (40th) #706
Rep Power: 16887   |
I may be wrong, but IMHO, it sounds like valve noise. Like the old cars where the valves would float on the cam at certain RPMS. Since these are probably hydraulically driven, if the oil pressure is low, there is not enough pressure to keep the lifters on the cams.
I found this in my FSM for assistance in diagnosing where and what the noise may be caused by...
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40th Anniversary 'Z', 312.06HP/260.58TQ (Dynosty EcuTek Tune) Build Date/Number: 1/27/2010 #706 Berk HFC + CBE, R2C CAI, Clear Bra, Cleveland Z Club[/COLOR] |
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