Air in the cooling system will do that! Need to bleed system through radiator, might need to jack up one side of front..
Check radiator hoses have not become weakened (soft). This would cause hose to constrict when under load but still allow flow at lesser revs, giving an increase and then a decrease in engine temp whilst driving vehicle.
To fix, simply replace both radiator hoses. Because if one has deteriorated the other is probably old as well.
The fans have there own temp control switch. This switch is electrically controlled. Find it and check for bad wires then check power. And ground then unplug the fan that's not working disconnect the battery. Now use the car battery and jump to the wires for the fan your checking to see if the fan motor works. If all checks out you need to replace the temperature control switch for that fan.
SOURCE: 1995 Toyota Camry 4 cylinder runs hot
Hi,
Firstly, ensure you have the required 'mixture' of coolant/water (must have required coolant).
Second, I would recommend you re-test all the cooling system sensors again (make sure they're within specifications), in case a new one is faulty.
Third, ensure the new thermostat was of the correct temp setting (they all differ), so that it opens at the required time. Most cooling systems operate within 90 - 100degC.
Fourth, make sure the radiator (and associated hoses) aren't blocked.
If your temp gauge is reading higher than normal, but NOT in the danger zone...then this can be considered normal (especially if you've replaced with new components) and nothing to be concerned about.
However, if the temp gauge IS in the danger zone....then this suggests the coolant is not flowing through the cooling system properly.
If all above components test ok, then it's possible your water pump may not be pumping enough volume.
Cheers,
Testimonial: "I appreciate your help...Maybe I should just relace the water pump, that would be the last thing that I would need to replace."
201 views
Usually answered in minutes!
×