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05-08-2015, 04:53 PM
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#1 |
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Registered User
Join Date: Jan 2015
Location: Ventura, CA
Posts: 818
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Stupid radio Problem
ok, so my radio works great......until i hit 35 mph then i dont hear any sound coming out of the speakers. Radio still has power. Looks like it is working. No sound. take foot off the gas. trucks slows down, right when it get to 35 mph and less, sound comes back on. WTF?????
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..................... ____ .........________//__{\_____ ,,,,,,,/__(O)___//___/__(O)_/ 1970 C20 -_--_--_- ______ _--_--_- /___|__\____ -_--_-_ |_(0)|__|_(0)] 1972 K5 |
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05-08-2015, 05:13 PM
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#2 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Stupid radio Problem
i'd check the antenna
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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05-08-2015, 05:29 PM
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#3 | |
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Registered User
Join Date: Jan 2015
Location: Ventura, CA
Posts: 818
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Re: Stupid radio Problem
Quote:
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..................... ____ .........________//__{\_____ ,,,,,,,/__(O)___//___/__(O)_/ 1970 C20 -_--_--_- ______ _--_--_- /___|__\____ -_--_-_ |_(0)|__|_(0)] 1972 K5 |
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05-09-2015, 06:43 AM
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#4 | |
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Registered User
Join Date: Apr 2013
Location: South Westerlo, New York
Posts: 1,325
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Re: Stupid radio Problem
Quote:
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Thanks, Joe.. 1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB. |
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05-08-2015, 08:15 PM
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#5 |
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Registered User
Join Date: Apr 2010
Location: So Cal
Posts: 1,422
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Re: Stupid radio Problem
>>Radio still has power<<
By that I assume you mean the radio lights are still on. Connect a volt meter so that you can read it while you drive. Either bring two wires in from the battery or connect at the radio fuse and a ground near the radio. For it to be so precise at 35 mph, I suspect a voltage problem. Possibly an over-voltage problem and the radio has an over-voltage protection circuit.
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'67 GMC 2500, 292, 4spd, AC |
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05-08-2015, 08:51 PM
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#6 |
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Registered User
 
Join Date: May 2014
Location: PA
Posts: 1,417
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Re: Stupid radio Problem
Sitting still slowly rev the engine through its RPM range and see if it does the same thing.
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1967 C10, LWB, 250, Powerglide, PS, PB, 3/4 STATIC DROP |
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05-08-2015, 10:39 PM
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#7 |
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Registered User
Join Date: Apr 2004
Location: Nampa, Idaho
Posts: 119
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Re: Stupid radio Problem
Turn up the volume....
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1972 K5 CST |
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05-09-2015, 12:31 AM
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#8 |
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Registered User
Join Date: Jan 2015
Location: Ventura, CA
Posts: 818
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Re: Stupid radio Problem
It does not do it when sitting with RPM's. I was thinking an over voltage is happening. It's weird. The display still shows all the same stuff. Just no sound.
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05-09-2015, 01:28 AM
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#9 |
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Senior Member
Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,202
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Re: Stupid radio Problem
Think maybe you're getting some RFI from ignition components when you get into a high RPM regime? There used to be coils and capacitors and shielded plug wires to shield AM and FM signals from the hash.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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05-09-2015, 01:07 PM
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#10 |
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Registered User
Join Date: Apr 2010
Location: So Cal
Posts: 1,422
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Re: Stupid radio Problem
>>It even does it when I'm using a USB drive to get music.<<
Obviously not an original radio and also obviously not in the tuning section of the radio.
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'67 GMC 2500, 292, 4spd, AC |
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