First a vacuum pump is attached, then a hose to a bucket of coolant. There is an adapter cone that fits into radiator filler neck or reservoir tank. When the engine cools down the coolant, it will be drawn from the reserve/overflow tank into the radiator to replace any removed air.Ĭhrysler Service Equipment (Chrysler PSE) Coolant Refiller #85-15-0650 or equivalent tool is mentioned. Here it escapes to the atmosphere into the tank. The next time the engine is operated, thermal expansion of coolant will push any trapped air past radiator cap into the coolant reserve/overflow tank. Running at 75 mph on a flat freeway, the oil temps are steadily around 221 degrees and the coolant gauge needle is a. and this has all begun when a dealership released the vehicle back to me with the expansion tank cap. Otherwise, as the engine operates, any air trapped in cooling system gathers under the radiator cap. I have a 2014 Jeep Grand Cherokee Summit with the 3.0L EcoDiesel and Ive been struggling to resolve. The vacuum created allows for a quick and complete coolant refilling while removing any airlocks present in the system components. The engine is brought up to operating temperature, cooled and the coolant level adjusted. This way there will be a near 100% fluid exchange.The service manual procedure, which is the same for all engines, uses a tool attached to the reservoir tank (or radiator) that creates a vacuum in the cooling system (also checks for leaks) and then allows coolant to be sucked back in from a container. These also seem like they will be pretty hard to remove because there is limited space to work in.Īll in all, I will get this done at the dealer or a location that uses the correct HOAT coolant. I would guess something around 15mm or 9/16". The drain plugs for the engine block are a fairly large hexagonal Allen type. Trying to get the other 1/3 will be pretty difficult. So only about 2/3 of the capacity can be exchanged.ģ. My Jeep: 2001 Grand Cherokee Limited, 245/65R17 Falken Rocky Mountain ATS, K&N drop in air filter. You may get some spillage.be careful, its. Get Yours Today We have the best products at the right price. Park the Jeep on an incline so that the radiator is higher than the heater core and pop the radiator cap off. Equip cars, trucks & SUVs with 2018 Jeep Cherokee Coolant Reservoir Cap / Radiator Cap from AutoZone. The capacity of this system is 10.4 quarts and only about 7 quarts come out when the radiator and reservoir tank are drained. The coolant level is normal and no bubbles in the expansion reservoir. I thought just pinching off the hose would be enough to run it without the tank installed.Ģ. 5 (1) Subscribe for Exclusive Offers, New Product Releases. I got some on my finger smeared it on my hand and it felt and smelt like thick oil or grease. DV8 Offroad Coolant Reservoir Cap for 07-18 Jeep Wrangler JK. 27,000 kms two services and whilst familiarising myself with components in the engine bay I noticed the sludge on the walls of the coolant bottle. OMIX Radiator Cap for 99-02 Jeep Grand Cherokee WJ with 4.7L V8 Engine. I was able to tell when the thermostat opened up. Crown Automotive Radiator Cap for 99-02 Jeep Grand Cherokee WJ with 4.7L V8 Engine. After I put the tank back in my spill proof funnel worked fine. Definitely do not run without the reservoir tank on. I have a 2012 Grand Cherokee with the 3.6L motor.ġ. Just wanted to add a bit more info for those that may try this job in the future.
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