The most common reasons why your lower radiator hose is cold are a faulty thermostat, a bad water pump, or a low coolant level. It can also be caused by airlocks or a clogged coolant system. Here is a more detailed list of the six most common causes of a cold lower radiator hose: 1. Faulty thermostat See more This is the most common problem when it comes to a cold lower coolant hose. Engines have a valve-based thermostat that determines and … See more The water pump‘s job is to pump coolant from the engine block towards the radiator to chill the coolant. If the water pump is not functioning … See more Air pockets in the coolant system are something you really do not want to have there. Air pockets can cause overheating and may stop the … See more A low coolant level can create a lot of problems in the coolant system. A low coolant level may create air pockets in the coolant system and … See more WebSep 28, 2024 · Take the temperature of the lower radiator hose as well. If there's an imbalance between them, it's probably a sign that your car's thermostat is closed. 4 Measure the temperatures again after 10-15 minutes. Let your engine continue running for at least 10-15 minutes so the engine can heat up to its optimal running temperature.
alh lower radiator hose always cold TDIClub Forums
WebAug 14, 2016 · E320 Overheat, cold lower hose and radiator. New fan clutch installed. It was a "Behr" to replace - lol. Temperature is better, but after a long drive temp gauge would slowly go to 104 and stay there at idle. Ambient temp is 88F. It would go down to and stay at 85-90 when driving then slowly go up to 104 at idle. good shooting badges 2k22 next gen
Lower,rad hose, cap cold. Water pump? 99,outback
WebAug 12, 2024 · Why not disconnect both upper.and lower hoses and see if water flows freely through it. Hose on full blast should have no restrictions in the radiator. Overheating issues could come from a leak in the system as well, but this wouldn't explain the cold hose. Sent from my SM-N920V using Tapatalk smolck ROLL TIDE! Joined Jul 2, 2007 24,184 Posts WebMar 14, 2024 · Otherwise, when the engine remains cold, the thermostat stays closed. Thermostat Location. The thermostat is often located in a plastic or metal housing near the water pump, connecting to the radiator’s lower hose. It is most often located on the housing that connects the radiator’s lower hose, but it can be the upper hose in some cars. WebIf your lower radiator hose is cold, you need to start by checking the head gasket. Coolant leaks, white smoke emissionsfrom the tailpipe, or a coolant leak near the water pump are indicators of a faulty head gasket. Gasket leak products can seal a leakand are the most affordable solution to fix the gasket. good shooters nba