Check the fan. If you have an electric fan, verify it comes on when the car is at operating temp. If you have a 'clutch' fan you can verify it's working by starting the car and listening for the fan to change pitch or 'roar' when it warms up. This can be quite noticeable on larger fans (NEVER put your hands anywhere near a moving fan. Keep a safe distance). With the engine off check the fan for excessive movement (clutch type) by rocking a fan blade back and forth. There should be little or no play. If your fan is attached to the water pump this is also a good way to check it's operation. Again, there would be little or no play. Despite the popular myth, your car NEEDS a thermostat. Do not remove it from operation. To properly check a thermostat, remove it from the vehicle and place in a pan of hot water of approximately the same temperature (usually stamped on the thermostat - but not always). Generally, if it opens - it's good. Check your manual for the proper temperature range and replace if found defective. You can also check water pump flow by leaving the thermostat out of the housing. Re-fill the car with water and run the engine with the radiator cap off. Once filled, you should easily be able to see a 'current' flow by. If your view is blocked, rev the car once or twice. Water should come flowing out of the radiator at a pretty good rate. Don't forget to replace the thermostat.
If your car stays cool at lower speeds and all of the above checks out ok but your car still overheats at high speeds, it's probably the radiator. With the engine warmed up sitting at an idle, measure the temperature of the upper and lower tanks. There should be (ideally) a 40+ degree differential with the upper tank being hotter (obviously). Even if the overall temperature is not exceeding the maximum heat range, a lower differential indicates a problem and the radiator needs serviced or replaced. Example: If the top tank is at 195o (normal operating temperature) but the bottom tank is a 185o then the radiator needs serviced. Water is not cooling before it heads back into the engine and at high speeds, this will just get worse.
Also , re-check the lower hose. On some cars I have seen this hose collapse after the engine warms up, restricting flow. Even though the hose appeared to be in good shape. There are also some engine conditions relating to fuel mixture (a 'lean' condition) that can cause overheating, but this is rare on any newer cars.
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.
If the hoses are all tight, Then the radiator must be leaking. REPLACE RADIATOR
the hoses leading to and from your radiator might be clogged. If you had a rusty radiator, the rust may have clogged the hoses that carry the coolant. you should check all your hoses and even flush them out.
Lower radiator hoses in water cooled engines are return lines. The upper radiator hoses are feed lines of hot engine water to the radiator. The reason that lower hoses are cooler is that the radiator has allowed much of the water's heat to dissipate into the air. Thus, a lower radiator hose contains cooler water than other radiator and heater hose lines.
Drain the radiator, disconnect all hoses from the radiator, remove the fan shroud, loosen all radiator mounting brackets, remove the radiator. Replacement is the opposite order.
All the hoses go soft and explode.
sounds like water pump.check radiator hoses as well
Your Car Hase A Closed Cooling System. So Your Hoses Will Feel Hard While The System Is Hot. When It Cools They Should Be Somewhat Soft Without Cracks In Them Or Deteration. If They Are You Need To Have All Hoses Checked And Replaced As Required. More Engines Are Destroyed By Overheating Than Oil Loss By Far. Best To You
To keep your engine from overheating the coolant runs from the radiator through the hoses into the block and back through the hoses into the radiator where it gets cooled by the fan and the air and starts the process all over again.
I had to take the bolts off of the fan. Remove the plastic fan cover. Diconnect 2 hoses underneath. Watch for oil. disconnet hoses on top. Unbolt radiator and remove. Make sure all hoses fit on new radiator. I have to remove twice since i didnot check
It could be the radiator, hoses, fuel pump or an engine gasket. All of those components just "give out" with time.
First of all, check the thermostat, the radiator fan, radiator hoses, water pump, radiator leaks. P.s. If you install a radiator fan universal and it don't place really close to the radiator, you can have that problem
You've got radiator hoses, heater hoses, power steering hoses, vacuum line hoses, etc. Probably best if you purchased a shop repair manual for that vehicle to show how/where they are routed.
first drain all anti freeze out of your radiator then undo fan shroud. Next you will have to undo radiator hoses supply and return, then undo the four bolts holding the radiator in once bolts are out just slide it right out the top. TIP: when putting radiator hoses back on or taking them off spraying WD-40 inside the hoses will make putting them back on or taking them off easier. To put radiator in repeat steps backwards.
Radiator hoses are located on almost all cars in front of the engine block. One hose on top and on on the bottom. Open your hood and look between the top of the headlights, you should see the first one next to the radiator cap. The bottom one you can see under the car, behind the bumper. They are the largest hoses under the hood.
When this problem happens I would always replace the stat first.Make sure you bleed all the air out of the cooling system by allowing the car to run at idle for about 30 minutes with the rad cap off.
To replace a radiator on a 1991 Thunderbird Super Coupe, a person has to drain the old radiator, then unhook all of the hoses. The radiator is bolted to the cross beam in the front and held in by bolts and screws along the sides and bottom. It is a good idea to take a picture of the old radiator and hoses to use as a reference when installing the new one.
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.
If this radiator has a plastic top, I would suggest you purchase a new radiator. If it is metal, then remove the radiator and have it repaired and flushed, at a radiator shop. This is a good time to service your cooling system. Replace the thermostat and flush the engine out. Check all radiator hoses including the heater hoses, and replace if necessary. Reinstall a 50/50 mix of the appropriate coolant. Don't forget to bleed the air out of the system after reinstalling everything.
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.
It could be that your radiator is rusted or damaged and need to be changed. Have it checked and flushed out to be sure. Another problem could be your cooling fan is not working properly, it should come on when the engine gets to a certain temperature. If it doesn't then check the connections and have it tested to see if there is a problem. These are the first things that should be checked out and also make sure none of the hoses are collaped or clogged. If you can feel the hoses getting warm after the engine has reached the proper temperature then water is flowing through them, you must check all the hoses even the heater hoses. These are usually the main reasons for overheating. But beware that there are other things that can cause it to overheat that has nothing to do with the cooling system. Good luck and I hope you find the problem. JeanAnswerthis can be caused by an old/defective radiator cap. i would replace it. firstname.lastname@example.org replace radiator cap would be my next move then if that doesnt fix problem check that engine timing is correct
Over time, the rubber in the radiator hoses becomes brittle causing it to crack very easily. As the hot radiator coolant surges through the hoses under pressure, it makes it very easy for the hoses to break. (most of the time in the hardest places to find) The solution to finding the hole would be to take a garden hose, and put it in the radiator top, run it so the radiator won't run out of fluid and try to assess where the water/coolant mixture is seeping from. Either have a garage fix it, or purchase a new hose and replace.
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.
there are four hoses hooked up to the radiator (two for transmission fluid and two for the antifreeze upper and lower). disconnect all of them. two nuts holding the top bracket in for the radiator take them off and disconnect the radiator fans. then just pull out the radiator.