How hard is it to change a radiator in my 1990 pontiac bonneville and what tools will i need?

It only has a single cooling fan so i beleive it is the 28 inch radiator.How hard is it to change a radiator in my 1990 pontiac bonneville and what tools will i need?This is a pretty easy repair. You will probably only need a 10mm and 13mm socket along with some hose clamp pliers or pliers with a 90 degree bend to remove the spring clamps. I also recommend a pick tool to go around under the hoses to loosen them and make it easier to remove without damage to either the hose or fitting. You'll want to remove any shrouds, disconnect the cooling fan connector and remove the fan (only has two bolts holding it in), remove the bottom hose at the radiator to drain the coolant and take the reservoir hose off the radiator filler neck then remove a couple of bolts to lift the radiator out. Be careful not to hit the condensor fins or you could create an A.C. leak. After getting it all back together it's very important to double check that the cooling fan connector is hooked back up and it you used the same hoses, make sure the spring clamps rest in the same marks on them when you install again and then spread the ears apart to tighten the clamp so that it seals well. Fill the radiator, start the car and keep adding coolant until it will not take anymore, then let it cool off for several hours and repeat this procedure. The next day, check coolant level again because when it is full cold it will suck all of the coolant available into the system and out of the radiator and reservoir. I strongly recommend using green coolant and not switching to Dex cool because the Dex takes a long time to protect, and when it comes into contact with air it forms the infamous %26quot;gel%26quot;.How hard is it to change a radiator in my 1990 pontiac bonneville and what tools will i need?First you need to drain the coolant. The drain cock is usually on the same side as the hose near the top of the radiator. If it is still good put it into a container that you can close so it does not get contaminated. Next use a wrench or ratchet to remove the fan housing and fan. There should be a wire harness you will need to disconnect. Next you need to disconnect the three hoses. Two on the back face of the radiator and one connected to the cap. Then there will be two or four bolts holding the radiator in place. Find and take those out. The radiator should pull straight out. Some models have a cross member that will need to be removed to access anything I described. It will have four bolts right on top. Tools needed are wrench, ratchet, sockets, closeable container, and possibly a small hose for the drain cock.