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Cars & Coffee Killer
Join Date: Sep 2004
Location: State of Failure
Posts: 32,246
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Truck Radio Problem
My 2007 Chevy Silverado has developed a weird problem that has gotten worse over time. A few years ago, I noticed that certain AM radio stations that had previously come in fine sometimes were getting faint with a lot of white noise. These were stations that broadcasted from far away, so I didn't take much notice.
Fast forward a few years, and most of the time no AM radio stations come in. They seem to come in fine during the winter, but the hotter it is, the fewer stations come in and the more white noise there is. Sometimes I hit a bump and they come in loud and clear and then fade out. Sometimes they randomly fade in and out. The radio is on the whole time. FM stations come in fine. These radio stations come in fine in my other vehicles. I pulled the radio and saw no obvious problems. Nothing seemed loose. It seems like the antenna might have a short, but how do I tell that? Is there something else I should check?
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Some Porsches long ago...then a wankle... 5 liters of VVT fury now -Chris "There is freedom in risk, just as there is oppression in security." |
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07-19-2018, 12:50 PM
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Registered
Join Date: Jun 2014
Location: Hilton Head Island, SC
Posts: 1,865
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If there's a windshield imbedded antenna, there is usually an signal amplifier involved. At least that's the way Porsche used to do it. I would check the connections to and from that first. Then maybe plug in a temporary aerial style antenna for test purposes. Just a thought.--Dave
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07-19-2018, 12:59 PM
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Registered
Join Date: Sep 2009
Location: North of You
Posts: 9,160
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I would buy a cheap antenna and plug it into the radio...see if that solved the issue.
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"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands." |
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07-19-2018, 01:41 PM
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Registered
Join Date: Mar 2003
Posts: 10,346
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Grounding issue, poor signal, water got into a crack somewhere, lots of possible causes, all coming down to no signal. Unfortunately tracking it down will take continuity testing the whole system, in sections.
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07-19-2018, 01:45 PM
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Registered
Join Date: Jul 2003
Location: Valencia Pa.
Posts: 8,859
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Check out this TSB, I don't know how you can access it , but this is the oe #
TSB - 06-08-44-033A
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No left turn un stoned |
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07-19-2018, 02:30 PM
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Cars & Coffee Killer
Join Date: Sep 2004
Location: State of Failure
Posts: 32,246
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Thanks FastFred. I think that is the issue. That gives me a place to look.
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Some Porsches long ago...then a wankle... 5 liters of VVT fury now -Chris "There is freedom in risk, just as there is oppression in security." Last edited by legion; 07-19-2018 at 06:17 PM.. |
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07-19-2018, 03:59 PM
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D idn't E arn I t
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No AM = no antenna.
rjp
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AOC/Hogg 2028 |
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07-19-2018, 04:40 PM
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Cars & Coffee Killer
Join Date: Sep 2004
Location: State of Failure
Posts: 32,246
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Fred, that was the issue. Why the hell did they put an extra connector in the 4-foot run of cable? At least it was pretty easy to get to.
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Some Porsches long ago...then a wankle... 5 liters of VVT fury now -Chris "There is freedom in risk, just as there is oppression in security." |
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07-23-2018, 07:22 AM
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Registered
Join Date: Jul 2003
Location: Valencia Pa.
Posts: 8,859
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Great!!
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No left turn un stoned |
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07-23-2018, 07:50 AM
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Boxer engine, 6 gears, big wing: it's a GT3!
1981 ?! A Red one... 3.0
Balla special
P car
OK, a girl that identifies as a car. Good enough?
Porsche Z06
P truck orsche
