The engine
Call or contact Radiator.com on the web. Great products and service.
When the radiator isn't working
You will need at least $300 to replace a radiator in Nissan Altima.
No, you can replace the grill without removing the radiator.
If your radiator is leaking then you will need to replace it. Additionally, if you find that your car is constantly running hot you will need a new radiator.
Do you need to check two possibilites, one, check if the oil is from transmission or from the engine, if the oil is red,is from transmission and you need to replace radiator, if the oil if from the engine you got it a big problem, because the only way that the engine oil is inside the radiator is because the engine has a bad head gasket, that mean you need to repair the engine heads.
It will be best for you to buy a Haynes Manual at a parts house or bookstore. It will give you full details and pictures. They have them that are specific to your car so you are not buying information on something you do not need.
I woul highly recomend it but you dont need to
A 3 core will work just fine.
If a 1994 Chevrolet Suburban is not getting hot, it may need to heating core replaced.
If you are getting exhaust smoke coming out of the radiator overflow, you need to replace the head gasket that seals the cylinder from the cylinder cap where your coolant runs through to cool the engine.
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.