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What is this line? And why is it sweating?

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Old 07-07-2012, 06:32 PM
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What is this line? And why is it sweating?
Ok. So I was just doing my routine check to make sure my meth nozzles weren't leaking.

Today was a REALLY hot day for where I live, so my AC has been blowing all day.

I look in the engine bay and notice that this line is sweating moisture quite a bit.

It scared me a bit as I thought I was leaking meth on my intake, but noticed that it's dripping from above.

Is this normal, or should I be concerned?

 
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Old 07-07-2012, 07:07 PM
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It is normal. The canister where this line is hooked too is a fuel cooler. Only for north american cars, this feature cooled the fuel going back to the reservoir to reduce fuel vapor inside the reservoir in very hot weather environment. So the big line got freon (R134) inside it and the smaller one got fuel....
 
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Old 07-08-2012, 02:01 AM
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Oh ok. So it's not leaking it's just condensation from the outside air sticking to the pipe.

Thanks!
 
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Old 07-08-2012, 06:14 AM
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Originally Posted by ek9max
Oh ok. So it's not leaking it's just condensation from the outside air sticking to the pipe.

Thanks!
Correct. I live in TX, yesterday we hit 107 degrees, mine looked like it had a major leak yesterday!
 
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Old 07-09-2012, 08:37 AM
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normal. condensation from fuel cool AC lines. if AC lines are hissing - thats a problem
 
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Old 07-11-2012, 10:34 AM
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Is the fuel cooled only when the AC is on? Are there any advantages with running with the AC off?
 
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Old 07-11-2012, 11:21 AM
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Originally Posted by Simi_996
Is the fuel cooled only when the AC is on? Are there any advantages with running with the AC off?
Fuel is cooled only with the a/c "on". Of course the engine having to turn the compressor there is a lost of h.p.. I was told you can loose up to 20 horsepower on a hot humid day....
 
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Old 07-11-2012, 01:21 PM
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20 HP loss due to heat could be just for the heated air and not just the lack of cooler fuel right?
 
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Old 07-11-2012, 01:59 PM
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Just for driving the air conditioning compressor.
 
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