Recently replaced the engine and radiator. I'm thinking (hoping) it's my thermostat. If it's not, where else can I look??
SOURCE: radiator is backing up. the water is not going to
either you got the thermostat in backwards or are trying to run the pump backwards, otherwise there is serious blockage in the engine
SOURCE: over heating, engine only, just had radiator replaced
Thermostat, is where top radiator hose connects / it could be that it is air locked /also could be water pump after removing the thermostat you should be able to see if water pump is circulating. if it was a used radiator ? it could be just as bad as the one you just changed / Have it flow tested .gallons Pier. minutes. also mack sure no kinks in hose./ let us know .Thank You.
SOURCE: I just replaced the engine
When an engine overheats, unless a huge quantity of coolant goes into a cylinder, (from a blown head gasket) it will generally be fine and can be re-started.. OK, so now you have another engine and that too is overheating?
First thing I'd check is the electric fan and if you have a mechanical one, check that too.
If the old engine severely overheated it could damage the transmission (both are cooled by the radiator)
If the transmission has an overheat switch on it, it can shut the engine down. On the other hand, the engine you just had installed may be bad.
I'd definitely have another shop check it out and see if there is anything wrong with the installation.
Before any good shop releases a car, especially after a large job such and an engine r&r, they test drive it and make sure everything is working. Somehow it doesn't appear that was done.
One important thing...When any engine begins to overheat, do not drive it. Driving can cause a small problem to "snowball" into a huge job!!!
SOURCE: Flushed radiator. Changed thermostat because prior
Air in the system. Run the engine with the cap off, rev the engine up and this will help purge the air. Fill as needed and keep check on it for a few days.
It appears that you have a blown headgasket, a failing water pump, or a cracked block.
There is also the possibility of a freeze plug failing & leaking there.
You can bypass the heater core until you are sure your engine problems are corrected so as not to damage it from excessive pressure.
You'll need to reassemble everything and pressure test the system instead of starting the engine, to see where the leaks are.
Good luck !
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