How to drain your CAC (Intercooler) with out taking it out.

[Larrylu]

I'm in the process of draining mine right now and discovered something. When removing the noise maker, I found a red O ring split and partially lying out of its groove. By looking at the split ends it looks like a 3/8 inch chunk may be missing. That's not the way it's supposed to look is it?

[ShoBoat]

I'm in the process of draining mine right now and discovered something. When removing the noise maker, I found a red O ring split and partially lying out of its groove. By looking at the split ends it looks like a 3/8 inch chunk may be missing. That's not the way it's supposed to look is it?

Not it's not, it should form a complete seal around the opening. If you are missing a chunk it could lead to a boost leak. I would try to get a replacement as soon as you can.


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[wasinger3000]

How many miles were on your car when you did this? Im at 17k right now and wonder if i should expect to see a small lake down there.

[glock-coma]

How many miles were on your car when you did this? Im at 17k right now and wonder if i should expect to see a small lake down there.

If your asking me. 33,xxx

[ShoBoat]

Same here, about 35k miles


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[ShoBoat]

Glock-coma, it looks like from your vid there is a fair bit sitting on the fins of the CAC. I wonder if we could blow that stuff off the fins using the intake side of the CAC. Then have it settle on the passenger side and suck it out. I guess a hepa vac with an exhaust port would do the trick. Whatever is used it would need to be filtered air. We really don't want to compound the issue by adding a bunch of dust in the CAC. I'll have to dig something up and give it a try. By the way. What camera are u using? The quality is really good.


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[glock-coma]

I checked their website yesterday, I was curious what it cost......$4,000

I really hope my boss didn't pay that much for it.

[ShoBoat]

No wonder the quality was that good lol. I don't think I'll be picking up one anytime soon.


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[Larrylu]

I'm in the process of draining mine right now and discovered something. When removing the noise maker, I found a red O ring split and partially lying out of its groove. By looking at the split ends it looks like a 3/8 inch chunk may be missing. That's not the way it's supposed to look is it?

Not it's not, it should form a complete seal around the opening. If you are missing a chunk it could lead to a boost leak. I would try to get a replacement as soon as you can.


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That's what I thought too. Nice to have another opinion. Found a hardware store "O ring" for the time being. Even if not OE part....better than missing a chunk. Will visit dealer tomorrow. Thanks for the assist!

[ShoBoat]

^^ glad to be of service.


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[IHeartGroceries]

Smart! Thanks for throwing a how-to together.

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[wasinger3000]

I know on the f150 forum a lot of people did a temporary fix of drilling a tiny hole in the intercooler to allow the conglomerate of crap to blow out under boost. Not sure of the long term issues this could cause. Some actually put a small valve in the bottom to drain as well.

[Larrylu]

Excellent how to ShoBoat. I did not succeed with gunk removal I think because my suction tube might need to be a bit smaller. The dipstick shows at least 1/2 inch down there but I only sucked up a half ounce or so. Sucking up a lot of bubbles like the tube was right at the surface so will try again with a smaller line. Bonus was finding boost leak when I'm trying to figure out if my performance is indeed more anemic than it should be. Very glad you came up with this procedure.

[wasinger3000]

Quick little liquid vac I made. Just an idea for anyone else.

Sent using smoke signals.

[SHOdded]

Maybe we could all get one of those AITs if the decimal point shifted 2 to the left!

Nice idea, wasinger