Overheating, belching out coolant after it's good and warmed up. The Danchuk Tri-Five Nationals presented by Woody's Hot Rodz Product Search. I watched a YouTube video - he was telling the symptoms of a bad radiator cap, in the middle he said "That sucked radiator hose is a good sign of a well sealed coolant circuit!" When it reaches the bottom, it moves out of the radiator through the lower hose and back into the engine to start the cycle once more. I Need Help On Where To Drain My Coolant Out Of The Engine Block. 0 0. aquarius. Yesterday 12:29 PM #3. The coolant is elated in and out of the radiator by upper and lower hoses. Saturday, September 17th, 2016 AT 9:28 AM. The upper radiator hose gets hot to the touch. There are two hoses, the upper and lower, and they’re thick and sturdy enough to handle both high pressures and immense heat. 3.8L 2003 Buick Temp says normal but climbs to 212 on dash gauge.. top hose extremely hot and lower hose almost cold to touch. They are hot for obvious reasons. Radiator hoses are a vital part of the cooling system that carry hot coolant from the engine through the radiator and circulate it back — cooler — to the engine again. It is soft not really squishy. It cycles through the radiator, cooling as it goes. seems to be ok now. Yes! Had to put it on hold a couple weeks to clean out my shed that got flooded in our historic flood down here in Louisiana. I changed the water pump, the thermostat, the radiator and even put a new radiator cap. If you have a problem with your coolant temperature and realize that the lower radiator hose is cold instead of hot, you could be experiencing problems with the coolant system that needs to get fixed. The radiator can be checked for hot and cold spots when it is running to see if it has plugged passages and needs replacement. Hey peeps, I'm having major overheating issues with my 2004 bmw 325i e46. ... Gates upper radiator hose 20584 Gates lower radiator hose 20958 Reply With Quote. after changing the thermostat, my car still gets hot VERY QUICK. The way to diagnose a problem is to eliminate everything that isn't wrong. She is my baby! I have a 97 V-6 3.8L mustang, and i have been having overheating problems. However, driving the car yesterday, the car started to overheat, and the heater was blowing extremely hot air. Overheating radiator very hot and upper hose very hot, but lower hose is cold. Do you. The top side of the radiator (upper hose area) is very hot, the opposite side (lower hose) is cold. The upper radiator hose runs from the radiator to the motor. Truck is not overheating, it has great heat, I would sweat to death if I left it on too long. Now its back to getting too hot even just idling for awhile, not sure if the radiator hose stopped getting flat because the newer one was stiffer or if that problem is solved. We use cookies to give you the best possible experience on our website. This can cause a coolant leak or a lack of coolant movement, which may lead to overheating and engine failure. The Devil. To locate it, get underneath the car and look for a smaller diameter hose leading from the radiator into the heat … I have a 99 WJ 4.7 I just drained the radiator today and had to pull off the lower radiator hose to drain it. Radiator hoses connect the top of the radiator to the top of the engine, as well as the bottom of the radiator to the water pump. As a radiator hose ages, the rubber may dry out, crack, collapse, or split. used zerex g-5 coolant. There are two hoses that connect to the radiator. The heater is blowing only lukewarm air most of the time and the temperature gauge in the car is registering below normal operating temperature. i dont think i should have any problems, but is there any other was of purging air pockets out of the system? But... the lower radiator hose does not get hot (a little warm form engine heat I would guess). 2 0. The upper hose is generally much warmer than the lower. I'm tired of being downrated. You can sign in to give your opinion on the answer. The radiator hoses also bring the refrigerant back into the engine to remove the heat generated during the process of combustion. So I did the air in the hose test and it really must've had a lot of air trapped. Hey guys we replaced the radiator cap and the upper radiator hose and the problem of the hose sucking flat stopped and the car was running at normal temp for awhile. I get home and pop the hood and feel the hoses ,the upper hose is very hot and the lower hose is cold. At the risk of repeating a thread or sounding silly. You will need to look at the various parts that influence the radiator temperature to properly diagnose a lower radiator hose cold problem. It may happen that your car might get low on coolant and is not able to reach the lower radiator. It has been our experience that you can often locate a lower hose … It's not really a sweet smell, it's not a good smell, kinda smells like coolant but I bypassed my heater core a while back to see if that was the problem and never put it back. / Hot upper radiator hose , cold lower hose. The lower radiator hose is harder to find. The whole idea of a radiator is to cool the fluid. It's been getting more full of coolant every time i look at it. Please help! The radiator should be cooler at the lower hose, that is its job to take hot water from the engine to the top of the radiator then disparate the heat and send cooler water back in to the engine through the lower hose. Join Yahoo Answers and get 100 points today. 1 decade ago. Could that be coolant perhaps? The coolant is always extremely hot, since the engine can reach high temperatures. Thus, making the lower radiator hose to heat up. Bottom radiator hoses are cold and top are extremely hot, what can be causing this and car is overheating on my 2005 - Answered by a verified Lincoln Mechanic. Finally, Basically if the rad hose is hard, there is pressure. Also, what does the upper radiator hose do? Hot upper radiator hose , cold lower hose. 2005 O/R, 136k. The cap and water is EXTREMELY HOT!! When this happens you will notice a temperature spike and drop occasionally as the fan comes on and off. Then, drain the coolant from the lower hose into the bucket. 1993 oldsmobile cutlass - over heat smell and some steam but mostly radiator cap and radiator are cool however hose leading from brand new thermostat is red hot. I just do not know what else it could be. I just do not know what else it could be. Start the jeep and take it for a ride ,temp goes up to 210 which is normal so I try the heat, that works great so I think everything is ok. That is the cap I got the other day! Average failure mileage is 107,000 miles. This was or steam could shoot out or spary every where if cap is removed before allowed to cool. A cooling system runs under pressure, 15-18 lbs, depending on the stat, so that would make them hard. I was always scared I would get burned. What's the best theft protection for a catalytic converter in an older Prius? Hot upper radiator hose , cold lower hose 1 Answer. If it never gets hot you have a bad thermostat, a water pump that is not working, or a restriction. Compare its squish-ability to the lower hose. The upper hose attaches from the top of the radiator to the top of the engine at the thermostat housing. What do you think of the answers? A bad radiator cap can hold too little pressure, seldom seen, but it can hold too much too.
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