How I Solved A C7 Corvette Overheating Problem - Thermostat & Cap Fix

Is your C7 Corvette overheating? In this video, I walk you through how we tackled a persistent overheating issue on a 2014 Stingray by replacing the thermostat, flushing the cooling system (without chemicals), and upgrading the radiator cap.

I’ll show you the important steps, explain why we’re doing what we’re doing, and share some tips that can apply to other vehicles too—not just Corvettes. If your cooling system has pH imbalance, mystery overheating, or you're just trying to avoid corrosion, this might help.

We get into block drains, heater core blowout, thermostat comparisons, and why a 20lb rad cap can make a big difference.

Thanks for watching Prairie Wings! Let me know in the comments how you’ve solved overheating issues on your car.

🔧 Work done in this video:

Thermostat change

Full coolant system purge (no chemical flush)

Radiator cap upgrade

pH testing & cooling system insight

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⏱️ Timestamps:
0:00 – Intro: 2014 C7 Corvette overheating
0:11 – Overview of the issue
0:39 – Common causes of Corvette overheating
1:13 – Initial observations & planned fixes
1:35 – Testing coolant pH & strength
2:56 – Why pH matters: Corrosion & voltage explanation
3:42 – Draining coolant: Rad & block drain tips
4:47 – Radiator drain and block access
5:04 – Passenger side block drain access (removing starter)
6:21 – Thermostat removal & comparison
7:28 – Blowing out heater core & coolant system
8:01 – Faulty thermostat explanation
8:38 – Thermostat reinstallation
9:11 – Why radiator caps matter: Pressure & boiling points
10:12 – System reassembled & working well
10:50 – Coolant refill notes & final thoughts
11:17 – This method works for more than just Corvettes
11:29 – Thanks for watching & like & subscribe!

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