I replaced the radiator.
Diagnose engine cooling fan relay problem.
If your p1496 toyota estima check engine light is illuminated it s best to take it in for diagnostic testing which can feel like a hassle.
Installing a radiator core with too high density too many fins and tubes per inch can restrict air flow enough to create this problem.
Cooling fan relays fail when the radiator cooling fan no longer receives an electrical signal.
Still the same problems.
This is a darlington transistor circuit and can fail open or short.
May be bad water pump broken hose heater hose upper radiator lower radiator or a bad radiator itself.
A broken fan relay means the radiator cannot cool down.
Replace it with an oem clutch fan from mopar.
If the fan motor does not work there will not be enough air movement through the radiator to dissipate the heat in the coolant.
Identifying your particular vehicle its model designation its equipment and any bulletins is important.
Either a switched on electric one that has that job or a fluid filled fan clutch and fan on the waterpump.
But make sure to follow the instructions with the pressure tester as you can.
A simple pressure tester will reveal the coolant leak.
Air must be flowing over the rad.
There must be an engine cooling fan of some type or it cannot sit at a stoplight.
They both work fine.
I checked the fan and fan relay.
Because while the lights vary in appearance from vehicle to vehicle all have the same basic meaning.
Home engine cooling fan and fan clutch fan and fan clutch if your dodge cummins radiator fan can stop while the engine is running it s likely the fan clutch has failed.
There s a problem with the car s emissions system.
I m not sure if this problem was related to only getting heat through my cabin vents at high speeds freeway so i bypassed the heater core.
The symptom usually associated with a faulty fan read more.
Follow the instructions on the test of pressure to your cooling system also check for coolant leaks onto the ground from radiator area.
The coolant level remains full so no cracks or leaks in the resevoir tank.
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