2014 WK2 5.7 - Intake Sound - Jeep Garage - Jeep Forum

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Old 05-30-2015, 10:10 AM
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2014 WK2 5.7 - Intake Sound

Hey, I recently bought a replacement GC from my 04 Overland, and I got a 2014 GC Overland with the 5.7. It's bone stock.

I've noticed there is a very subtle intake sound as the GC rolls through it's gears. It sounds almost like a wastegate, if it had a turbo.. has anyone else noticed this sound?? If so, I'd like to know what it is that makes the sound. Perhaps it just the type of air intake fitted to this model year?

I'm planning to put an exhaust on the GC; I'm curious if I could actually make this sound deeper, but I'd need to know what the source is.

This is my first Hemi engine, my H.O. 4.7 that I've been accustomed to is completely different of course.

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Old 05-30-2015, 12:18 PM
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Re: 2014 WK2 5.7 - Intake Sound

'14 Summit V8 4wd 1400 miles late build. No sounds whatsoever when shifting. Intake noise is also non-existent especially with how intake systems are designed these days with resonators and stuff.
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Old 05-30-2015, 01:38 PM
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Re: 2014 WK2 5.7 - Intake Sound

Did you buy it as a "left over" new 2014, or did you buy it used?

Ours had an "intake sound" that sounded sort of like a mild Cold Air Intake from the driver's side engine bay. Couldn't find anything wrong with the stock intake. Even after an oil/filter/air filter change, still had the sound. However, while changing the oil, I noticed a coolant leak from under the water pump. Took it into the dealership, they looked at it, and came to the same conclusion that I did: bad water pump. They changed it, and that intake sound is now gone. It must have been letting air into the cooling system or something, not sure how it was causing that noise.

These Hemi engines are great, but some like to eat a water pump now and then. I wondered if it would happen to us, and it did. It is covered under powertrain warranty though, so if that's your issue and its new or certified used, no cost other than your time to take it in.

Look under the front end, on the front of the engine, up just in front of the oil drain plug. The coolant leaks are easy to see if its the water pump, red crusty stuff will be dried on all over the place there if it is the problem.
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Old 05-30-2015, 04:14 PM
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Re: 2014 WK2 5.7 - Intake Sound

I bought it new as a leftover model year I suppose. That's disappointing to hear, but I appreciate the heads up. I'll schedule it for a look If I do find something.

(FYI) It had 68 miles on the clock when I got it, it just hit 6000 last week.
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