overcooling, 2001 ram
Legend
Joined: Nov 2014
Posts: 8,098
Likes: 318
well, ive bleed the coolant system 4 times, and drove over 1000 miles, I get heat, but the heat temp reflects what the gauge reads, hot air around 181, warm air when gauge drops to around 177, then when gauge goes up, heater temp goes up. temp gauge never hits 195. no water seems to be rushing past thermos when closed, engine just never gets to operating temp when in the winter, blocked rad for now and it helps, but still has never been the way it was before replacing plenum seal, runs great, ill have to deal with it until I can think of a logical reason why 7 new thermos all open to early.
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Registered User
Joined: Dec 2018
Posts: 16
Likes: 0
at 181-185 I have great heat, around 175-178 luke warm, I have to pick up a new thermos gun and just got in a new temp sensor. im very confused, its like the thermos is stuck open, but when I hold the hose, I feel nothing moving, when the thermos opens, I feel it flowing. very confusing, I will try a few more things and let all know.
Legend
Joined: Nov 2014
Posts: 8,098
Likes: 318
at 181-185 I have great heat, around 175-178 luke warm, I have to pick up a new thermos gun and just got in a new temp sensor. im very confused, its like the thermos is stuck open, but when I hold the hose, I feel nothing moving, when the thermos opens, I feel it flowing. very confusing, I will try a few more things and let all know.
Administrator
Joined: Apr 2010
Posts: 87,366
Likes: 4,209
From: Clayton MI
Crappy heat is an air pocket in the heater core. Poor design from dodge. The way it's set up, it is almost impossible to get all the air out of it..... without removing the hoses, and filling it manually. But, that won't affect engine temp at all. If the engine is not getting up to the thermostat temp, coolant is bypassing the thermostat somehow.
