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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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#5 |
Zilvia FREAK!
![]() Join Date: Jan 2012
Location: Port Charlotte, Florida
Age: 33
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If you have a blown HG, the air bubbles introduced into the cooling system at higher RPMs can cause your gauge to drop. I've had this happen to me. I've also had the reading on my gauge drop because the connection itself was loose.
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