How to remove motor noise in the radio?

120

Asked by Jun 11, 2012 at 09:54 PM about the 2011 Chevrolet Suburban LT 1500

Question type: Maintenance & Repair

Motor noise at low RPMs.

7 Answers

1,555

bad ground wiring...

2 out of 2 people think this is helpful.
120

Where? How can I find the location of the bad or loose ground?

10 out of 10 people think this is helpful.
935

what kind of noise, is it a high pitched whine that goes with rpm, or is it AM static?

3 out of 3 people think this is helpful.
120

It is static and it goes and come at low RPMs, mostly there all of the time and it mask over the weak station that I'm trying the hear on AM and FM stations.

2 out of 2 people think this is helpful.
1,555

it is just static but its pretty annoying... usually its just caused y two things... the power supply wire that turns on the radio or loose connection from the radio to the antenna...

1 out of 1 people think this is helpful.
935

Honestly it would be very hard to tell from here, but i will say that if you have checked all the connections to and from the radio, the last thing i would try before blaming the radio would be to disconnect the one power feed wire from the alternator and the one wiring harness going into the alternator, sometimes an alternator with a bad diode can cause annoying radio static. If it goes away you found your issue, if not, it could be the radio, a coil pack, deeper wiring issues etc. i would just try the connections to the radio and then disconnect the alternator (of course promptly reconnect when done with the test or the battery will die). Good luck!

2 out of 2 people think this is helpful.
120

Thanks for the tips you guy, I will try each of them when I get my Dad squared way, he just got out fo the hospital and recoving from pneumonia, it's tuff for an eighty five year old. Thanks again PapaT912.

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