2.0L Coolant Flush

[SnowMonkey]

Does the owner's manual call for flushing the coolant at 5 years? I thought it was a 10 year, 150k-mile interval. At least for US spec...

You'll never get all the coolant out without a flushing machine. But with 3-4 drain/refills you can get the old coolant concentration down to minimal levels.

And as far as I know, that doesn't include the intercooler. That is on its own cooling circuit.

Also, if it is an eTorque motor, there are other dedicated coolant circuits too. One for the MGU and another for the 48V battery.

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[SnowMonkey]

This video gives you an idea of what is involved. It is a different Jeep engine, 3.6 in this example.

 

[Odyssey USA]

This video gives you an idea of what is involved. It is a different Jeep engine, 3.6 in this example.

There’s no way I’d let them introduce an unknown into my system. It also doesn’t look like that setup would have the volume displacement capacity with those little brass fittings. I could be wrong. I wonder what the dealer setup looks like.

@alphawolff

 

[SnowMonkey]

There’s no way I’d let them introduce an unknown into my system. It also doesn’t look like that setup would have the volume displacement capacity with those little brass fittings. I could be wrong. I wonder what the dealer setup looks like.

@alphawolff

Totally agree with your points.

Alas, I couldn't find a Mopar tech video that shows what the dealers use. So in an attempt to communicate that it will take more than a "drain and fill" I thought I'd risk it and share the video.

 

[Angel K]

Of course, I will publish what I know about this and anything else about Jeep, it's a shame I can't have here what you enjoy there about Jeeps, in these small islands you have to go to the dealer for almost any problem, I've had 7 Jeeps and this is the most complex with the cooling and that the engine is Italian, but we have little information, accessing the workshop book is complicated if not impossible, but we are and will always be strong so as not to die trying, thank you.

 

[alphawolff]

There’s no way I’d let them introduce an unknown into my system. It also doesn’t look like that setup would have the volume displacement capacity with those little brass fittings. I could be wrong. I wonder what the dealer setup looks like.

@alphawolff

Definitely an ancient and ghetto system. I seriously doubt anyone does a flush like this anymore. Popping hoses off is usually a lot of work on our vehicles in a lot of cases, especially the newer ones. Sometimes those hoses can take a lot of effort to dislodge from the radiator or water pump, and we all know how fragile those plastics are.

We have the BG machine. Ours goes right to the coolant bottle cap and pulls a vacuum on the entire coolant system sucking it all out, then replacing that vacuum with new fluid. Our's has three tanks, one for five year, one for 10 year, and one for used coolant.

If you don't have access to a vacuum coolant exchange machine you really can just pop the drain cock on the radiator and let it drain then refill it. Sure it might take 20 minutes to drain but there's a case of beer that needs to be drunk anyway.

I've never done a coolant flush on the turbo cooling system or hybrid cooling systems, though. Only the normal engine cooling system. You'd probably blow seals trying to use a machine on those 5 psi systems

 

[Angel K]

I like the beer thing

 

[Odyssey USA]

Definitely an ancient and ghetto system. I seriously doubt anyone does a flush like this anymore. Popping hoses off is usually a lot of work on our vehicles in a lot of cases, especially the newer ones. Sometimes those hoses can take a lot of effort to dislodge from the radiator or water pump, and we all know how fragile those plastics are.

We have the BG machine. Ours goes right to the coolant bottle cap and pulls a vacuum on the entire coolant system sucking it all out, then replacing that vacuum with new fluid. Our's has three tanks, one for five year, one for 10 year, and one for used coolant.

If you don't have access to a vacuum coolant exchange machine you really can just pop the drain cock on the radiator and let it drain then refill it. Sure it might take 20 minutes to drain but there's a case of beer that needs to be drunk anyway.

I've never done a coolant flush on the turbo cooling system or hybrid cooling systems, though. Only the normal engine cooling system. You'd probably blow seals trying to use a machine on those 5 psi systems

Thanks for the insight. Will draining that way get most of the old coolant out of the block as well?

 

[alphawolff]

Thanks for the insight. Will draining that way get most of the old coolant out of the block as well?

Yeah, the drain is at the lowest point in the cooling system. There will be some residual pockets here and there but nothing big.

 

[TJsJeep]

Hello all, I am new here and was trying to find some help.

I currently own a 2016 but my sis in law has a 2020 with the 2.0l.

Her water pump went out and instead of spending 1700 at the stealership I told her I would knock it out. While the job was easy but tedious, I was a bit confused on the coolant bleeding procedure.

After refilling, I hooked up my overhead fill tank and started it up. I noticed the bottom of the reservoir started leaking coolant. I double checked my connections and everything seemed tight.

After speaking to a friend, he said put the cap on and let it build pressure. The leaking stopped.

Is this normal?

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