changing antifreeze in intercooler


L

larrypack

GT Owner
Apr 21, 2013
8
What is the best and easiest method to change antifreeze in the intercooler circuit?
 
Drain it at the front radiator - typically at the same time when you are also draining (changing) engine coolant. Re-fill using vacuum fill method.
 
The big problem is to not leaver any air bubbles in the system.
 
nota4re said:
Drain it at the front radiator - typically at the same time when you are also draining (changing) engine coolant. Re-fill using vacuum fill method.
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order an "Airlft" system. they work extremely well on a GT for both cooling systems. owners get amazed when they use one that the car runs cooler because they've gotten all the air out of the cooling systems. jmo
 
I used the airlift and raised the back of the car higher. There by putting more pressure on the radiator evacuation process.
 
nota4re said:
Drain it at the front radiator - typically at the same time when you are also draining (changing) engine coolant. Re-fill using vacuum fill method.
Click to expand...



Kendall, is there a special kit # for the FGT due to adapter?
 
The kit I ordered from Amazon had a generic adapter that worked well. The key is to have a compressor which has at least 150 Psi capability.
 

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MAD IN NC said:
Kendall, is there a special kit # for the FGT due to adapter?
Click to expand...

The standard kit will have what you need in terms of adapters. Art is showing a cone-shaped adapter, although both kits we ordered have the right cylindrical adapter. Maybe the changed the kit? Either way, I think standard kit will work well. So well, in fact, you'll find yourself using it in other (non-required) applications. Art makes a good point about the size of the compressor. The Airlift draws a vacuum by use of a venturi to create a pressure differential and you must have a reasonable CFM capability to get the full vacuum draw. (There's a rudimentary gauge to show you this.) Those small pancake compressors are not sufficient in our experience.
 
 
We use the Snap-On Rad Kit Vacuum Evac tool. We have a couple of them use them extensively in GT's in our shop (P/N#RADKITPLUSA) They are actually OEM specified in the FSM for the cooling systems. Use that and you'll have no issues with trapped air in the intercooler or engine cooling systems.
 
Reviving an old thread to see if anyone has the part # for the Airlift cap that screws onto our expansion tanks?
 
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The ones I have, have a tapered rubber part that should seal fine. Or, suck the reservoir out and refill it, fire it up, kill it, suck out and refill and so on as many times as you feel necessary. Same on the engine. If you've opened the system beyond the cap you'll want to use the tool. It may also help to get the rear of the car higher than the front.
 
I am looking for one I can screw on and have it stay in place while I use my hands to do something else other than holding the tapered funnel shaped one in the opening.

I know someone here said they had one, just hoping that person still checks in from time to time.
 
2112 said:
I am looking for one I can screw on and have it stay in place while I use my hands to do something else other than holding the tapered funnel shaped one in the opening.

I know someone here said they had one, just hoping that person still checks in from time to time.
Click to expand...
the tapered piece stays in great without hands, especially when there's a vacuum on it, if you don't find what you're looking for.
 
The airlift system that works with the GT reservoirs is this one: AirLift
 
Mike, FYI, Blackstone Labs does antifreeze analysis too. Knowing how often you drive your car, it might be a good idea to get it analyzed before you change it, and save unnecessary changes.
 
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