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There is no strict rules about that. You need to inspect hoses periodically. But when you have a car which is 10 years old you might need to change all vacuum hoses around the engine.
Changing a radiator in a 1997 Pontiac Grand Am can be a difficult task. To remove the radiator, all of the radiator hoses will need to be disconnected from the radiator. The transmission lines will also need to be removed. After all of the hoses are disconnected, remove all of the clips that are holding the radiator in place. Lift the radiator up and place with a new one. All the hoses and clips will need to be put back in place with the new radiator.
Radiator hoses? Heater hoses? Vacuum hoses? EVAP hoses? Need more info to help you.
more than likely you need a new radiator for it, when you install it back flush the engine.
When you or your mechanic are under the hood for an oil change or to refill window washer fluid, etc., have a quick look at all the hoses. A radiator hose doesn't need to be replaced until it starts to show signs of wear or flaking, or when it become brittle, which means it will split soon. Radiator hoses are replaced as needed, rather than on a schedule of mileage.
The radiator hoses will need to be disconnected. Remove the cooling fan. Unbolt the radiator and any shroud surround and the radiator will come out. Reverse to install.
A radiator is held on the mounting brackets. Before removing the radiator on a Toyota Starlet it will need its coolant drained. Remove all the mounting bolts and disconnect the hoses to pull the radiator off.
Last I heard, there was no such thing as radiator sealant in a commanche. If you have a hole, you need a new radiator. Try tightning down all the hoses first, though.
Check the bottom part of your car for leaks. Check all hoses. Check color of exhaust. If it has white color it means you have internal leakage and you need the head gasket again.
u need to take both the radiator hoses off the radiator and take a water hose to the top inlet. leave the cap on it. and let water run through it to flush it out.
You will need to do the following. 1) After engine is cold, drain the coolant by removing the radiator drain plug. ( you may need to remove the plastic front cover fixed by nuts underneath the car to get at the radiator) 2) Remove the clamps that hold the upper and lower radiator hoses ( the upper radiator is near the top side of the radiator to the left of the radiator fill cap while the lower house is at the bottom) 3) If the car is an auto tranmission the cooler hoses for the ATF need to be removed. ( take care you will lose some ATF fluid, these hoses are to the bottom left of the radiator) 4) Undo the radiator top and bottom holding nuts and lift the radiator out. ( I am unsure but you may also need to remove the fan bracket assemblies and move the AC condenser hose out of the way) 5) installation is there reverse. 6) You will need to refill coolant and bleed the system for air pockets. Also top of the ATF level by checking the ATF dipstick ( if the car is an A/T)
This question is not complete. . Need to know if you've replaced radiator, thermostat, hoses etc. Are you asking this question *after* yo checked the thermostat, changed, added or drained the system?