Changing Engine Coolant - 2000 Dodge Ram 1500 Pickup

I want to change my engine coolant and found this article:

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It talks about installing the T-fitting in the heater-inlet hose that runs from the firewall to the top of the engine.

I have one heater hose which runs on the driver side to the firewall and one that runs on the passenger side. I suspect the one on the passenger side to be the inlet hose that I need to install the T-fitting in. Am I right with that? That one on the passenger side actually already has a coupling in it, so it should be very easy to install the fitting. But again, is that one the right hose?

Any other tips for changing the engine coolant are appreciated as well.

Thanks in advance. Axel

Reply to
Axel Ulrich
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The passenger side is the hot supply from the engine, the driver side is return.

Reply to
John Kunkel

If you are using the prestone flush system then yes, the hose with the coupling is the one to use. Just remove the coupling and insert the T fitting there. I would also suggest cracking the lower radiator hose loose for draining the radiator, it is much faster than using the petcock. Remember to use pure antifreeze and not that 50/50 crap when you refill the radiator after the flush and put it into the radiator unmixed. It will mix with the water that is still in the engine to give you the proper ratio. If you want to do it with the distilled water method as some in here like to do, then after the flush you will need to remove the lower radiator hose as well as the block drains (small hex fittings on the lower block on the sides of the engine) to remove as much water as possible before filling it with either that pre-mixed stuff or an equal amount of distilled water and antifreeze.

Reply to
TBone

I don`t understand how you can BACKFLUSH against the flow of a running water pump! (as per web link) This page also does not take into account that to get a recommended 50% ratio you must know the capicity of the system. The manual will tell you that. If the system holds 12 quarts you must put in

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Reply to
RICHARD

If you fully flush the system, there will be no issue of types as the only thing being left in the system is water.

Reply to
TBone

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