commom causes for grounding Whine noise...

[apex_predetor]

I was wondering if you guys have come across some common causes for grounding whine sounds?

When I plug something into the auxillary port on my radio I get a horrible whining noise when the volume is up at all?

I also get a dimming of my lights when I use the window up/down controls?

I have a 2008 Yukon SLE with about 40k miles.

Thanks again for any help guys.

 

[LI99HOE]

Sounds like your supply voltage is droppin' low.
Check the voltage @ the battery when using the window up/down controls, and see what it drops to.
Possibility the voltage regulator might be faultering, and can't supply the necessary current.

 

[apex_predetor]

Thanks. I have an appointment tomorrow at the dealership for som warranty work. I will ahve them check that as well.

I just had a fuel pump and module that sends fuel level to guage replaced last month. The repair guy said that the pump didn't look so good and replaced it.

Could that low voltage be the culprit here as well?

Thansk for the reply. I appreciate it.

 

[edgaranah1]

Its all "normal" don't worry. I have the same things happen to my 07 yukon sle since new. Took it to the dealer and they said it was "normal"

Sent from my BlackBerry 8530 using Tapatalk

 

[apex_predetor]

That a joke? THat high pitch whining can't be considered NORMAL?

 

[Blakesan]

in the last 5 years I have had honda 07 ridgeline, 08 escalade , 03 ford f350 , 10' yukon , colorado , they all have had the whine , its much worse if im charging my ipod and playing through the jack at the same time.

 

[apex_predetor]

All with the auxillary port, or during use of teh auxillary/usb port?

 

[Blakesan]

yea the AUX headphone jack port , i have never use the USB port, the only car the had the option of one is the yukon and I dont think it has one.

 

[LI99HOE]

Thanks. I have an appointment tomorrow at the dealership for som warranty work. I will ahve them check that as well.

I just had a fuel pump and module that sends fuel level to guage replaced last month. The repair guy said that the pump didn't look so good and replaced it.

Could that low voltage be the culprit here as well?

Thansk for the reply. I appreciate it.

You probably actually had a bad pump sending ass'y if a tech said it was bad.... can't say myself...kinda like being an armchair Quaterback on that one.
If your voltage was low @ that time, or you had the inability to draw proper current, the pump would not be able to turn @ it's full potential, and I would think you would have fuel delivery problems(don't know what your symptoms were prior to replacement).

---------- Post added at 06:46 AM ---------- Previous post was at 06:44 AM ----------

Its all "normal" don't worry. I have the same things happen to my 07 yukon sle since new. Took it to the dealer and they said it was "normal"

Sent from my BlackBerry 8530 using Tapatalk

Normal??? Any time I've heard of his symptom... it's never been considered normal. Especially lights dimming when using other accessories that require a significant amt. of current draw to operate correctly.