After going about 10 miles and sitting for a hour, I opened my hood and the top radiator hose was sucked in or collapsed. I started it up and it went back to normal. Is this normal or do I have bad thermostat's?
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By collapsing you mean sucking together . . If so this indicates a vacuum being generated in the radiator by the water pump especially under rpm,s. This indicates that the thermostat may not be in the right way or you have the incorrect thermostat. I know of bottom radiator hoses sucking in from blocked radiator cores ( they can come with wire coil to prevent this) but it is difficult to see how this could be the same for the top hose which in effect is a delivery hose to the radiator.
Tannim, sounds like air in system? have to keep it running, filling it with water while it's running with cap off.: sometimes you need to loosen the heater hose to get all the air out. Then if all the air/compression is out refill with radiator fluid.
Ok open your drain **** on the bottom of the radiator run a water hose at top where radiator cap is see if the water runout the bottom good if not then you do have a blockage. I would all sheck to see if bottom hose is real soft when you squeeze it if so replace it. Just make sure you put the right kind of antifreeze back in your radiator if it needs replace. There is the green and there is orange kind, if you have aluminum heads orange is best. I hope this helps you if you haven't already fixed the problem.
With the engine cold remove the radiator cap. Start the engine. Watch the coolant. If you see bubbles constantly perkulating out of the coolant than you most likely have a head gasket that has failed.
If you don't see a constant perkulation of air bubbles it probably wouldn't hurt to replace the upper hose and see if the problem is resolved.
If the clutch on your radiator fan is broken the fan will not spin fast enough to cool the engine. Make sure your fan shrouds are in place, otherwise the air will not be sucked through the radiator properly.
Your radiator may be clogged, the radiator cap may be broken, the thermostat may be sticking, a hose may have collapsed
Heres a couple of things you can check. Start your car and remove the radiator cap,(before it gets hot mind you) when it reaches norm operating temp, look inside radiator to see if water is circulating. If its not moving, its a bad water pump. Also, youre hoses should never collapse, if they collapse when they get hot maybe you need new hoses? Finally, if those dont work, flush out your radiator. Open the bottom cockpit and use a garden hose and let it flush out the system while the car is running, about 10 mins should do the trick. If the radiator looks clean inside then it doesnt need flushed.
Sounds like the radiator is clogged, have the cooling system flushed, the water pump pumps water into the engine and it comes out the top hose to return to the radiator to circulate through it to cool, if the radiator is clogged the water pressure will build on the top hose, also look at the bottom radiator hose, if it collapses when you rev the engine the radiator is clogged, although sometimes the bottom hoses are reinforced with wire to prevent them from collapsing so just because they do not collapse it does not mean the radiator is not clogged.
If the thermostat doesnt open hoses can **** in on them selfs Watch hoses while at operating temperature and rev the vehicle while watching the radiator hoses,top and bottom,to see if they stay normal.The bottom hose usualy has a steel inner winding to stop water pump from sucking hose in but have seen these corrode and collapse.I think you should replace the thermostat first and check that the fans are cooling the radiator correctly.Also check the accuracy of the water sensor that sends the signal to your dash gauge to make sure its not a simple sensor fault.Generaly a water pump will not give problems until it starts to leak.Have you bled the water system as air locks can cause your problem as well.good luck
If the hose has collapsed, most likely the thermostat was put in backwards reversing pressure. There is only one place the thermostat goes. Follow the top radiator hose to the top of the engine block. It will have a round clamp holding it onto an aluminum housing, usually held on by two bolts. On a cold engine, first drain the radiator and squeeze the hose till you don't hardly hear any gurgling noise, unbolt the screws holding the housing, you don't have to take the hose off the clamp. You'll need the new thermostat and gasket for it. Not sure of the type, go to your local parts store and give them the specs on your vehicle. Engine size, how many cylinders, if it has a/c or not. Most likely some engines take a 185 degree thermostat or higher. They'll tell you this. Make sure you remove the old gasket remains from the engine block and the housing before installing the new gasket and thermostat. Use a putty knife. Once it's replaced, refill the radiator. Start the vehicle and wait for it to warm up, watch your temp. gauge or light and turn on the heater all the way up to you feel heat. Approximately 10 minutes tops. Watch the hose if it collapses again or not. You should be good aftger that.