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  1. M

    How do I set the clock?

    Dumb question, but I cannot figure out how to set the clock on my 1990 stock radio. It drives me crazy. Any help would be greatly appreciated. Thanks
  2. M

    temp gauge is all over the place, please HELP!!!!

    Hi, so I have had this truck for a little over a year now and the heater/cooling system has been a constant problem. I replaced the heater core yesterday and now the temp gauge is acting really weird. It warms up fine, gets to about 200 degrees and stays there when idling. But when I start...
  3. M

    Another heater question for a 1990 truck

    Hey everybody, so I am still having issues with my heater. A month or so ago I replaced the radiator and thermostat. I used fail safe thermostat and it never really seemed to function properly, but I was getting some warm air. It never got hot though. A week and a half ago, the belt...
  4. M

    Fail Safe thermostat on 90 RCSB

    So as some of you know, I recently replaced my radiator and thermostat on my truck. I put in a Fail Safe thermostat thinking I was doing a good thing. Everything seemed good for a day or so, but then I noticed that the temp would rise almost to overheating and then drop to just over 100...
  5. M

    1990 rcsb heater question

    Hello, I am having heater issues. The problem I am having is that the heater rarely puts out any heat. The blower works at all 3 speeds. The button to adjust the temp appears to work, according to the display (the arrow moves back and forth when I push the button towards hot or cold) but does...
  6. M

    Battery only showing 10 volts

    Hey everybody, I have a 1990 c1500. It's 2 wheel drive, 1/2 ton 5.7 TBI. Last thursday, I left the lights on and killed the battery. I tried jumping it but it would not jump, even after letting it charge off the other car for 10 minutes. Eventually grabbed the battery out of my 1978 C10...
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