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Old 01-05-2018, 12:33 PM   #3
GPI Sales Consultant
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Drives: 2011 Camaro 2SS SGM
Join Date: Jul 2016
Location: Weedsport, NY
Posts: 2,205
Agree - sounds like air.

It's real easy to change the thermostat yourself - drain the coolant, pop the thermostat housing, and replace. Very minimal if any coolant loss that way - you can catch it all with a rag. Then fill it up till full, run the engine, let it push out the air, keep filling, once the temp comes up cap it off and you're set.
2011 2SS SGM - CAI, PTB, Rod-Mod and ported intake, GPI SS3 cam, AR LTs 1.875", X-pipe, high flow cats, cutouts. 25% UPD, 169*F stat, Ideal Garage clutch master and reservoir, Tilton 6100 HRB, Mcleod RXT, Yukon 4.11 gears, TruTrac Differential, LPW Diff Cover, BMR Pro diff bushings, Pegasus Solid rear sub-frame bushings. 497rwhp. 11.67@119 2+ton raceweight.
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