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Username Post: 71 sbc air in cooling sys        (Topic#374300)
J C 
Senior Member
Posts: 605

Loc: Orange Co. Calif
Reg: 04-17-04
01-07-24 09:20 PM - Post#2865701    

Installed a new temp sensor and thermostat. Temp went up to 250 degrees. I assume I have a air lock probably at the thermostat. No flow through radiator. How do I remove the air. I was thinking of loosing the thermostat housing and getting coolant to flow out. Never had this problem before.

69RSZ28 71 Chevelle 79 Silverado 24K mi.


Super Senior Member
Posts: 6542

Loc: paradise
Reg: 09-05-03
01-17-24 07:06 AM - Post#2866013    
    In response to J C

did you drill a hole in the stat?

70 L camino, grampa engine, g-force 5 spd, road rage suspension. Pray first before all else fails.

Dedicated Member
Posts: 5629
Loc: Lake Superior-Michigan US...
Reg: 03-30-00
02-24-24 12:16 PM - Post#2867199    
    In response to J C

Have you tried parking the vehicle so the radiator cap is the highest part of the system and removing the cap and letting it idle? Heater on as well.

2021 GMC 4WD Sierra Denali Ultimate 6.2L/10-sp
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