Check the clamps that connect the hose to the radiator and the engine. The old one had part of a rubber gasket caught in the spring, so it seemed like it probably hadn't worked in a while. This one appears to be the lower radiator hose leaking (I really hope it's not the radiator). 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. Looked over the cooling system, and everything looked great. It could be that my trips I'm checking it on are too short. A radiator hose in poor condition feels very hard, spongy, or soft. Also, with a stock belt-driven fan that runs all the time, my temperature gauge rarely gets above 1/4. The upper hose circulates coolant that is hot out of the engine into the radiator where it cools down. Compare These Parts Talk to the Experts. GATES {Click Info Button for Alternate/OEM Part Numbers} Molded . the drivers side of the radiator is also warm/hot. You probably didn´t drive enough to have the thermostat to open. 2001 740 il bmw problem- lower radiator hose is cold and upper hose is hot and car is not overheating. Isaac850, Feb 4, 2019 #1. The upper hose circulates coolant that is hot out of the engine into the radiator where it cools down. Post Reply. A collapsed lower radiator hose; An eroded or loose water pump impeller; Even a defective radiator cap; Heat always flows from an area of higher temperature, to an area of lesser temperature. Cloudflare Ray ID: 6260ed505ae10746 filler cap with the engine running, it would come out like a volcano, having no place to go. I have a 2001 vw jetta tdi. Cold lower radiator hose Having an issue with my 95 T100 (4WD, 5 Speed) which has same 3.4 as my 02 4TR and hoping someone can help me figure this out. Radiator hoses are key components of an engine's cooling system. Remove your radiator cap (WHEN ENGINE IS COLD), run the motor and let it warm up a minute or two, have someone rev the engine a little while looking into the radiator. On traditional "bottom-up" automotive engine coolant systems, the lower hose runs to the water pump's suction side. The upper hose was hot, but the lower was cold. Definitely need more info here, the top hose gets hot first ie hot water rises -even without the action of the pump. Your IP: 37.152.180.224 The hose is made out of rubber and after a period of time, it starts to break down. FREE Shipping on orders over $25 shipped by Amazon. - I just made a 3 hour round trip. 1996 nissan altima no cabin heat, new radiator, flushed and filled, top hose hot, lower hose cold, newer thermostat checked good HI Anon. 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. User Name01, Feb 4, 2019 Find our best fitting heater hoses for your vehicle and enjoy free next day delivery or same day pickup at a store near you! Kat's 28114 Lower Radiator Hose Connector 1 1/4 Inch Lower Radiator Hose Connector. 2) Don’t see any coolant movement in radiator when cap is left off and engine at normal operating temp, supposedly with thermostat open. Any idea of what the Issue may be? Top hose hot as expected. The bottom radiator hose should be cold, or maybe warm on very hot days. But now after replacing it, the lower radiator hose still doesn't warm up. I drive 25 miles each way to work on the highway so probably not going to push it. Could a faulty hose do this? Kat's lower radiator hose in line heater # KH16500 does not circulate fluid with a mechanical pump. Does the heater inlet hose feel warm and the heater outlet hose feel cold? Does the upper hose hot an lower hose cold indicte a cooling issue? - Didn't check the J Plug (didn't know it existed at time of stat replacement). Remove your radiator cap (WHEN ENGINE IS COLD), run the motor and let it warm up a minute or two, have someone rev the engine a little while looking into the radiator. Turn the temperature control knob to the maximum hot position. Only 5 left in stock (more on the way). 1994.5 - 1997 7.3L Power Stroke Diesel - Should the lower radiator hose be hot after driving and pulling a load? Sounds like thermostat is not opening. I quickly replaced the cap. Made all the difference. So even after a new thermostat I’m still not getting hot air and the lower radiator hose is still not getting hot. Larzzzz [OP] Grande' Ricardo. I've always run a 195 stant n the lower hose is always cool. 1 1 1 silver badge 1 1 bronze badge. We carry a large selection of Kubota - Radiator Hoses - Cooling System - Tractor Parts. $13.02 $ 13. After the engine has warmed up (as warm as it is going to get), the upper radiator hose is hot, the heater core hoses are hot, the little bypass hose is hot, the lower radiator hose is cold/barely warm. GATES . If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. The upper hose is hot. Recently it felt like the lower hose of the radiator wasn't hot, and since I had a new toyota thermostat in my box of parts I installed it. CHEVROLET > 1991 > C1500 PICKUP > 5.7L V8 > Cooling System > Radiator Lower Hose. Actually the bottom hose is 10 degrees hotter than the top one. » Members from all over the US and the world! User Name01 Little boy from FairyTale Land. The engine is not over heating. When the time comes to replace the hoses within your vehicle's cooling system, AutoZone is your one-stop shop to find every hose component that'll get your ride running smoothly again. The lower radiator hose is harder to find. We followed decades of experience that hot gauge + cold lower radiator hose = stuck thermostat. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. Unless you have other problems, like heater not working, or truck running hot, I think what your describing is a cooling system that is working correctly. Street Rod Radiator Hoses in-stock with same-day shipping. should always be full with the excess coolant going into the overflow reservoir when hot, and drawn back in the rad. My car is overheating my upper radiator hose is hot but my lower is cold and my radiator fan is not kicking on.. Help . (0) Checkout. Customer Service Since 1952 in Street All Street Race Truck in Search. I had a bad thermostat and a bad radiator that I replaced a week ago. It is just a heater that operates on the principal of thermosyphoning. Lower radiator hose cold, no matter what I do to the cooling system, the hose it will not warm up or get as hot as the upper radiator hose or the heater core hoses. Upper hose gets hot after squeezing it and heat feels ok for a little while. Upper radiator hose hot and lower is cool. This can be a restricted radiator or a water pump with worn off impeller fins. Adding 1/2 gallon is a lot; the rad. The hose is made out of rubber and after a period of time, it starts to break down. Another way to prevent getting this page in the future is to use Privacy Pass. THE BAD: - Only warm cabin heat from vents (livable). Now I'm n DFW area, and during a 30's nominal daytime temp, again, my engine ran 10-15 degrees cool. Fluid in the radiator is high, upper hose is hot but lower hose stays cold. 01. The lower radiator hose on my truck is cold. 2005 O/R, 136k. As on any fluid system, suction results in … 210 degrees is very hot and your upper hose should be that temp. The … Is it the waterpump … read more is working fine; if it was plugged, the temp would rise rapidly, and when you opened the rad. With easy online ordering and same day shipping. As a radiator hose ages, the rubber may dry out, crack, collapse, or split. I refilled it and removed the bleed plug to purge the air out. But now after replacing it, the lower radiator hose still doesn't warm up. https://carfromjapan.com/article/car-maintenance/lower-radiator-hose-cold 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. For a better experience, please enable JavaScript in your browser before proceeding. Get the job done with the right part, at the right price. When this happens, the water pump, trying to draw coolant through the lower radiator hose, can create a vacuum sufficient to collapse the hose. Thread starter J-Roy; Start date Nov 21, 2012; J. J-Roy New member. Either-way, the top hose gets hot after the thermostat has opened. ALL HOT ROD TALK AREA; Deuce Den; lower radiator hose; Welcome to Club Hot Rod! My car has an automatic transmission. Hello. First Let me say I had issues with my radiator cap. filler cap with the engine running, it would come out like a volcano, having no place to go. Yeah, that is what was throwing me off. Discussion Starter • #1 • Apr 30, 2019. - Lower rad hose stone cold and and stat housing cold. Hoses should not be swollen or cracked, both of which could lead to a failure. Discussion in '2nd Gen. Tacomas (2005-2015)' started by Larzzzz, Apr 19, 2014. I would suggest having an expert from Your Mechanic come to your home to diagnose your cooling system. Specially formulated to raise boiling point (226 deg F) and lower the freezing point of the coolant (-34 deg F). Just tonight i was driving and smelled coolant, so I pulled over and got out to notice coolant leaking out and steam from under the hood. The process of building a custom radiator hose is similar for both the upper and lower hoses. Perform a squeeze test. Is it safe to drive? Half of it pulling 6-7k on my trailer. After the engine has warmed up (as warm as it is going to get), the upper radiator hose is hot, the heater core hoses are hot, the little bypass hose is hot, the lower radiator hose is cold/barely warm. During the winter, if I wanted ol' blue to run at normal temps, I installed a flat piece of cardboard between the condensor coil n radiator. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Thermostat Replacement: $141.88 - $613.47: Get a Quote: Heater is not working Inspection: $79.99 - $89.99: Get a Quote: Robert Kulp. At the risk of repeating a thread or sounding silly. 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. cold lower radiator hose. The other possibility may be that the radiator may have some blockage as the upper hose is hot and the lower hose is cold, indicating that the coolant may not be ciculating properly. Find The Lower Radiator Hose. Though few car owners think about checking their radiator hoses the same way they would their oil, monitoring and replacing radiator hoses … By design, the bottom radiator hose should be cooler than the upper hose. The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. Feb 4, 2019 at 12:19 PM #2 #2. The thermostat controls how much of this cold coolant is brought into the engine from the radiator, via the lower radiator hose. Select the lowest blower speed position. Recommended Services. - Top rad hoses, expansion tank small hose, top hard pipe, heater core inlet hose, lower hard pipe all hot. Price: Alternate: No parts for vehicles in selected markets. so that makes my needed hose as end "A" about 1.5" and end b: about 1 7/8" with a maximum total length of 13". 2016 Ram 3.0 diesel 3.55 w/LSD, G2 tonneau, Line-X, Weathertech mats, Mag-Hytec differential cover, Nfab bars, CB radio, EGR bug deflector. Learn how to diagnose a bad radiator hose visually, and by feel. Automotive Mechanic. Pop the hood of your car and then find the lower hose, which can be found connected to the water pump. You may need to download version 2.0 now from the Chrome Web Store. To locate it, get underneath the car and look for a smaller diameter hose leading from the radiator into the heat wall of the car. With a hot top hose and a cool lower hose, your rad. The only way to cool hot metal, therefore; is to keep it in constant contact, with a cooler liquid. Follow asked Jan 19 '19 at 18:28. The top one is suppose to be the hot one. A soft hose or a hose with a soft spot should be replaced. my upper radiator hose gets hot and is pressurized once my thermostat opens. Discussion Starter • #1 • Apr 8, 2012. My apologies if this has been gone over many times. Half of it pulling 6-7k on my trailer. The radiator appears to be an early Walker Cobra radiator with the 1.5" lower right side exit on the radiator. (The air temperature around the hoses must be at least 85°F (24 °C). Your lower hose is not suppise to be hot. My car has 16500 miles. So, the only way to do that is to keep the coolant in constant circulation. The outlay was cheap—several hours of time and the cost of a thermostat, a few gallons of antifreeze, and a catch basin. The first thing you want to do before installing the lower radiator hose is to find the lower radiator hose on your vehicle. 13 years of experience. 1996 nissan altima no cabin heat, new radiator, flushed and filled, top hose hot, lower hose cold, newer thermostat checked good HI Anon. Joined Oct 31, 2012 Location Pittsburgh TDI 2001 VW Jetta TDI Nov 21, 2012 #1 I have a 2001 vw jetta tdi. In many cases, when it comes to a cold lower radiator hose, … Next, you want to place a bucket underneath the lower radiator hose. Visually inspect each radiator hose. when cooling down. Ordered new fan clutch/fluid coupling since it is very loud and most likely locked up. The old one had part of a rubber gasket caught in the spring, so it seemed like it probably hadn't worked in a while. Won’t arrive for another couple weeks, $87 through Amazon (Aisin branded unit). Track Order. The cool October temperature in Greenville and the fact that the radiator was recently re-cored made for a non-problem masquerading as a problem. Check the temperature of the heater inlet and outlet hoses by feel. Test the cap,,, system needs pressure to work correctly. radiator. Improve this question. when i feel the lower radiator hose, it is cold but its somewhat pressurized. the passenger side of the radiator is cold too. I lived in Syracuse for 5 years. 76 Posts . My upper hose is hot but the lower hose is cold. Okay. Check that first. Please enable Cookies and reload the page. - I just made a 3 hour round trip. With a hot top hose and a cool lower hose, your rad. The thermostat was not an oe one but I have great heat and my gage reads 190. Moving the coolant through the engine properly plays a crucial role in protecting the engine. Top side heater hose is hot. There are two hoses, the upper and lower, and they’re thick and sturdy enough to handle both high pressures and immense heat. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Depress the mode control button until the LOWER position is displayed. There's radiator fluid coming from the overflow on the radiator cap. Replaced timing belt, water pump, tensioner, etc as well as thermostat and upper/lower rad hoses. the fan is mechanical and I can see flow when I had cap ,so the pump is working. 3. 1994.5 - 1997 7.3L Power Stroke Diesel - Should the lower radiator hose be hot after driving and pulling a load? It also contains a lubricant and anti-corrosive properties. The upper radiator hose controls the flow of engine coolant from the radiator into the car engine. 19 I pulled the thermostat and checked its opening by placing it in boiling water and it opened and seemed fine. In a cold engine, engine coolant is stored inside the radiator. The thermostat was not an oe one but I have great heat and my gage reads 190. Recently it felt like the lower hose of the radiator wasn't hot, and since I had a new toyota thermostat in my box of parts I installed it. Your upper radiator hose carries warm coolant to the radiator to be cooled, and your lower radiator hose connects to the water pump, which pumps coolant back into the engine. No problem at all. Coolant level is fine. I have a plugin engine spy n it says my winter time coolant temps are CONSTANTLY 180-185 no matter what temp t-stat I use. 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. The heater air temp seems a little low when I but the heat on high. It sounds like you may have a faulty coolant fan relay. If you remove and test the thermostat to be okay, then flush the radiator with both hoses disconnected to see if a lot of scale or debris is blocking it using a … I had just driven about 30 miles. Matt Matt. 2. I purchased a Gates 25526 vulcro-flex II hose 1.5" x 1-3/4" hose, it will not go over the water pump intake. While the engine is warm after a drive, squeeze the radiator hoses, paying particular attention to areas where the hose bends. 88908692 Lower Radiator Hose - Replace 22437 24403L - Fit for Different Types of Vehicles - Lower Coolant Hose - Radiator Hose Lower by BOOTOP 3.4 out of 5 stars 10 $15.19 $ 15 . As a result, the heater worked LOTS quicker and the temp guage went up...guessing...10-20 degrees. It sends the cooler coolant back to the engine. Call 800.979.0122, 7am-10pm, everyday. Get it as soon as Tue, Feb 23. Top radiator hose is hot and bottome radiator hose is cold. Also learn how to replace the upper and lower radiator hoses. 1, 1991 & Newer; w/ 41" Wide Radiator; Excluding Chassis Cab. Apr 19, 2014 at 3:15 PM #1 #1. The process of building a custom radiator hose is similar for both the upper and lower hoses. Anyway, while trying to find the source of my leak I discovered that the lower hose is cold to the touch. Automotive Mechanic. I have little control when posting on this site. My 2006 Outback with 82,000 miles is simultaneously overheating while not sending hot air to the heater. Deterioration. The top radiator hose is usually but not always the location of the thermostat. Should I check the thermostat first? Locks up more times than not. 25 years of experience. Performance & security by Cloudflare, Please complete the security check to access. JavaScript is disabled. upper hose is holding pressure, has new radiator and new coolant fill … A radiator hose in good condition should feel firm, but not hard. Engine discharges hot antifreeze using the top hose and draws cool antifreeze from the bottom hose. My car has an automatic transmission. Or it opened just a bit, so that the hot coolant entered via the upper radiator hose, but the airflow through the radiator cooled the coolant that much, that it is much lower in temperature and didn´t heat the lower hose. Jeff Engstrom. Mar. 02. - Heater core return hose warm only. Ask Your Own BMW Question Customer reply replied 11 years ago Are these the signs of worn out water pump? I had a bad thermostat and a bad radiator that I replaced a week ago. Share. You have no items in your shopping cart. Shop Street Rod Radiator Hoses and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. Coolant level is fine. It is the lower hose that carries a combination of water and antifreeze coolant into the radiator engine which circulates and grabs onto heat. The hot water passes through the thermostat out the upper hose, then gets cooled by the radiator, and goes back to the engine on the lower hose. A large part of a radiator's function is made possible by the upper and lower radiator hoses. The engine coolant is held inside the radiator until the engine becomes hot enough to warrant engine coolant circulation. • 0 items in cart. It should therefore strike you as odd if you notice one or both have collapsed. My upper hose is hot but the lower hose is … My car has 225000 miles. I have done everything I can think of . 2. Products to Compare (max of 3) X. The fluctuating from around 205-210 made me think the t-stat was working (not knowing what size the PO installed) and I would have thought after a 2hr drive the lower hose might have been somewhat warm, but it was cold. I was really not looking forward to putting in a new water pump. lower should be cold...that means the radiator is working. Moving the coolant through the engine properly plays a crucial role in protecting the engine. It is the lower hose that carries a combination of water and antifreeze coolant into the radiator engine which circulates and grabs onto heat. My Account; My Wishlist; My Cart; Checkout; Blog; Log In; Madison Tractor Company. Could it be the fan actuator ,this is the only part I have not changed. The engine was up to temp. Catalog Search. Joined: Aug 23, 2009 Member: #21609 Messages: 2,426 Gender: Male First Name: Larry MA Vehicle: '06 dclb 300+ kmiles Aux back up lights, Bed lights, Re-located trailer plug, Good dooby, a.k.a. Outside air temperature was about 35. • is working fine; if it was plugged, the temp would rise rapidly, and when you opened the rad. Order Online or Call 828-649-7190 Monday - Friday, 8am - 4pm EST; Welcome! 1709-7004 Lower Radiator Hose … This indicates that your radiator is operating correctly: it is successfully cooling the hot coolant which is leaving the engine via the upper radiator hose. Lower radiator hose cold. Okay. After running the engine for 20 minutes, would the lower hose be cooled so much by the radiator that it's barely warm or would this signify a clogged radiator? There are 3 different … I this should not be. Based on my Auto Meter water temp gauge, It was running 210-211 cruising, and didn't change when I would get in … Radiator hoses are key components of an engine's cooling system. When the cooling system is working correctly, how much of a temperature difference should there be between the upper (from engine to radiator) hose vs the lower (from radiator to engine) hose? Whether you need an upper radiator hose, lower radiator hose or heater hose fittings, you'll find the right part at your local AutoZone.