11-14-2014, 02:05 PM. These coolants will typically say 50/50 or pre-mixed on the front of the coolant bottle. Some coolants will come premixed-that is, you don't need to add any water. This is normal. To confirm, you need to actually check the coolant level to make sure you have a leak. Dangers of Low or Contaminated Coolant The radiator uses a series of tubes and hoses to transport coolant, or antifreeze, and cool down your engine. That helps prevent coolant leaks and engine mechanical problems. Sounds like you need a new cap. The system is highly pressurized and the fluid inside is very hot. Expelled coolant will enter the tank from the bottom, and when the level rises it will expel through the vent tube. Find the expansion tank. For this reason, if you suspect that your coolant recovery reservoir may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic. Pressure Rating 15 psi. A reservoir cap that has a hole in it would allow air to get into the system and could cause the symptoms you’ve ... You will need to inspect your new coolant reservoir and maybe even contact a Ford parts department to know for sure, but our guess is the hose will need to replace the entire hose. Checking your coolant level is one of the easiest things to do because you need absolutely nothing, not even a rag. The overflow tank cap is often the cause of the leak. You need antifreeze, otherwise known as radiator coolant, that is one part coolant and one part water. There will be a video of a coolant reservoir replacement at the bottom of this guide. Step 1. You can locate the reservoir by following the hose from the radiator. I thought it had blown a hose because the coolant was leaking every where with little smoke and the cap was still on In most traditionally cooled vehicles, when the cap’s maximum pressure capacity was exceeded, the coolant was ejected into the atmosphere or dumped onto the ground. DODGE > 1999 > DAKOTA > 3.9L V6 > Cooling System > Coolant Reservoir Cap. If your coolant is murky or has sludge in it, or if there is rust buildup in the radiator, under the radiator cap or the coolant reservoir tank, that’s a giveaway your coolant needs flushing. The following piece of information is very important: Do NOT attempt to open the radiator cap on a hot car. Yesterday while in idle waiting for a light my coolant reservoir popped! At operating temperature, coolant can evaporate from the open system. You will need to disconnect this in order to continue. If you need to check it or top it up manually, here's what to do. Engine cooling system problems could arise if you don’t have the right mixture of coolant, which is typically a 50/50 mix of antifreeze […] Remove the reservoir cap … Price: No parts for vehicles in selected markets. Then, you need to find the radiator drain by consulting your owner's manual that refers to your car’s special model, make, and year. For this reason, overflow tanks/reservoirs,recovery tanks have their own vent. If the coolant reservoir is completely empty, you can’t just refill it. Here’s how to do that: Wait until the radiator has cooled. You may need to push down as you turn it CCW. Coolant should be topped up whenever the level drops below the guide marks. What’s important to remember here is that your car engine is designed to be sealed so as to protect it from wear and damage. If you need a new radiator cap or coolant reservoir cap, visit O'Reilly Auto Parts. 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