1994 Toyota Camry overheating

Hi paulmoats46, Welcome to 2carpros and TY for the donation.

Brand new water pump, radiator and thermostat working okay-try bleeding the cooling system don't work get it block and pressure tested to rule out a blown headgasket, cracked head or block and intake manifold leak

Your engine compression is good. Block testing is a liquid type tester that changes color if there's combustion gases in the cooling system. Pressure test is applying air pressure in the cooling system

Do this open up the radiator cap and start engine up if coolant spewing out -could mean your headgasket is blown-to verify again use a block tester.

Double check the water pump though its new and also the thermostat

Water pump checking-remove rad cap, start the car up let it run for a few mins, coolant should be swirling around now pinch off the top hose for a few secs then let go the coolant flow should increase if the water pump is working

You need to open it back up and investigate the water pump

Try putting the old water pump back on and see if it pushes coolant towards the radiator-

Put the old water pump back on and see what happens

Its doing its job, you should see the coolant moving thru inside if its good if not could be a blockage in the head or block

1st respond:

try bleeding the cooling system don't work get it block and pressure tested to rule out a blown headgasket, cracked head or block and intake manifold leak.

Could be a leak thru the headgasket, cracked head or block or an intake leak-get it block and pressure tested to find out more

No pressure loss- use a block tester, this is a kit that performs a chemical test on the vapors in the radiator. Blue tester fluid is added to the plastic container on the tester. If the fluid turns yellow during the test, then exhaust gasses are present in the radiator.

The most common causes for exhaust gasses to be present in the radiator is a blown head gasket. Replacing a bad head gasket requires a major disassembly of the engine and can be quite expensive. Other causes include a cracked head or a cracked block, both are even more undesirable than having to replace a head gasket.

The idea of the block tester is find out if exhaust gases is making it into the cooling system thru a blown headgasket, cracked or block. It will change in color if there's a leakage.

To answer your Q on the water pump. If the thermostat is opening, and the radiator is not clogged-up and the water pump is not pumping coolant through out the engine. Did you position the jiggle valve correctly on the thermostat. And also the gaskets and oil rings are all in place and the water bypass pipe no clogged-Best check again the water pump in and out I know what you're going thru I've been there before with the oil pump and the water pump and I don't like it. Good Luck