Question about Cars & Trucks
Posted by Anonymous on
If no air in the system from internal heater or other places
new thermostat and radiator cap
good firm coolant hoses
old school air bleed
you fill coolant system with motor running
heater on in the car and thermostat open
burp the hoses until bubbles are no more
if still no better
what about these possibles
faulty coolant temp sender
head gasket failed
cooling fans not spinning fast enough
or not coming on soon enough
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Posted on Jan 02, 2017
I think you could be right about there being air trapped in the system.
Or the heater core(radiator) is plugged.
Either way you need a pressurized radiator coolant pump to put the coolant in without air being trapped.
Although,i have seen it done by jacking the vehicle up high enough that the radiator was now higher than the heater core level, and then the coolant was put in.
But this is dangerous to try.
Posted on Jan 29, 2009
radiator goes bad ,also when car over heats,there for change radiator,if still the same then ,you blew the head gaskets to the engine,need to replace also,bleeder valve to be done by a shop
Posted on Oct 31, 2009
your sure you installed thermostat correctly and no leaks around it ...are both top and bottom hoses hot going into and out of the heater-core and all fluid temps are at specified levels ...
you may also have an air bubble which when back-flushing may occur was the vehicle getting heat prior to reinstalling another thermostat / and while fluid was replaced into the radiator circulation /flow of exchange from the motorto the radiator are presenty working no vacuum lines are dry-rotted causing a vacuum leak ..hmmm you can hear the heater flaps open and change from the dash defrost to floor to vents etc ok that sounds like its working but check with the cap off to the radiator for proper fluid levels and that the fluid is exchanging and both the top and botto hose into and out the firewall are hot if the top is hot and the bottom one is coldyou may still have a lot of sediment /gunk in the core itself and reflushing the core is required and remember not to use full force when doing so or you risk rupture to the unit /core with the motor off remove the 2 hoses face the bottom or top on towards the catch pan because its illegal to disburse it onto the ground and whether your back flushing it or just running the water through you will also dislodge the air bubble as it fills with water after your sure the above is all looked into check to ensure the flow of fluid is present ...this is my starting point on your issue ...
Posted on Dec 16, 2009
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