electrical whineing noise

Geezer65
0

Asked by Geezer65 Aug 23, 2013 at 07:08 AM about the 2001 Cadillac Eldorado ETC Coupe

Question type: Maintenance & Repair

radio off, fairly loud at idle, varies with rpm, consistent but seems less at higher rpm,s or driving above 40 or so. Almost goes away when radio is on and playing a Bob Segar song.  Please Help

8 Answers

judge_roy
Not Active

going to suspect an alternator, but do think a worn belt tensioner bearing can make the belt swim to one side with mixed results...a whine is one of the tells- --have your mechanic put a new belt on and check the tensioner pulley for wear~

2 out of 2 people think this is helpful.
judge_roy
Not Active

,,,still runnin against the wind...

2 out of 2 people think this is helpful.
DavidH25
Not Active

It still does it if it's Springsteen or Bob Dylan? Actually from what you describe it does sound like a belt or bearing, since it does it at idle and gets louder with higher rpm's Agreed, check belt tension and look to see if a pulley wobbles at idle or if you can wiggle a pulley side to side with engine off. And check your power steering fluid.

2 out of 2 people think this is helpful.
Michael Kane
7,785

Is your Eldorado equipt with a factory BOSE radio? If it is the amp could be going bad.

3 out of 3 people think this is helpful.
Geezer65
0

Thanks so much for the input guys... sounds to me more electrical than mechanical.. pitch of whine changes with rpm and is loudest and most noticeable at idle..almost gone at 2000rpm. LoL it does seem to almost go away with Springsteen and Dylan too, if played above 80 decibels. Yes it is a factory Bose the feedback upon closer inspection with a mechanics stethoscope is coming through the drivers speaker, and is there ( no change) with radio off or on. another electrical whine (different) comes through same speaker when dash lights are faded down and that noise goes away at full brightness. So with this new info what do you think guys. alternaator, resister, ground, amp i would think off unless there is a stand by mode still powered up with radio off.

judge_roy
Not Active

filtration of the12 volts that power the amplifier...someone has something out there....will have to go to a car stereo expert site to find one...they will be cheap~

2 out of 2 people think this is helpful.
Best Answer
judge_roy
Not Active

...okay...there are LOTS of them~ spend a penny~

2 out of 2 people think this is helpful.
judge_roy
Not Active

pleasure~

Your Answer

Add photo

Related Questions

Eldorado
Looking for a Used Eldorado in your area?
CarGurus has 444 nationwide Eldorado listings starting at $3,499.
ZIP:

Search Cadillac Eldorado Questions

Cadillac Eldorado Experts

#1 spiderblu
spiderblu
Reputation 290
#2 lightGear
lightGear
Reputation 190
#3 dandyoun
dandyoun
Reputation 110
View All

Related Models For Sale

Used Cadillac DeVille"
61 Great Deals out of 3,101 listings starting at $1,750
Used Cadillac Seville"
8 Great Deals out of 658 listings starting at $1,500
Used Ford Mustang"
1,046 Great Deals out of 25,221 listings starting at $1,329
Used Chevrolet Corvette"
330 Great Deals out of 10,786 listings starting at $3,900
Used Chevrolet Impala"
1,665 Great Deals out of 57,996 listings starting at $990
Used Cadillac Escalade"
249 Great Deals out of 6,765 listings starting at $3,999
Used Lincoln Town Car"
107 Great Deals out of 2,991 listings starting at $2,500