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can someone tell my why?

 
Old 02-03-2019, 09:02 PM
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Default can someone tell my why?

I have an 05 5.3 with 60143 box, MSD Atomic EFI and Dakota Digital gauges. with this setup I need three temp sensors.
yesterday I put the car on my lift and drained the radiator overnight. this morning I pulled the sensor from the driver side head and installed new sensor.(no problem). went to the pass head to remove the factory plug from the sensor hole. when I broke it loose water shot out like it was under pressure. I plugged it back up, got my bucket and then backed the plug out so the water could drain. after that I put the bucket back under the radiator and another half gallon of water drained out of it.
anyone know why the radiator didn't completely drain (new radiator?. why would there be water under pressure in the other head after changing the first sensor?
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Old 02-04-2019, 08:05 PM
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Thermostat ?
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Old 02-04-2019, 08:41 PM
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maybe...I was thinking with the steam tubes they would vent the heads around the T-stat.
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Old 02-05-2019, 01:00 PM
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Originally Posted by M7A1V View Post
maybe...I was thinking with the steam tubes they would vent the heads around the T-stat.
Depends on how the steam tube is routed.
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