Recent content by ryan_289

  1. R

    1978 drier location

    I am trying to get my 1978 c25 ac back up and running. The system was all closed up but the po said the main hose was leaking. I ordered a new line and drier on rock auto. The drier that I got doesn't appear to be on my truck? It looks like a normal drier canister with fittings on top. I...
  2. R

    AC/heat blower motor only blows low

    Yep bad blower motor. Put a new one in today and it blows air again. The only issue now is that whenever you turn the key on, the fan blows on low all the time. Even with the ac selector off. When it's off it will not change speeds but will change speeds when the ac selector is slid over to...
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    AC/heat blower motor only blows low

    I think I've got it narrowed down to the blower motor. I get power at the purple wire at the blower and at full blast on the switch I can hear the relay click. I removed the blower and put 12v to the spade terminal and ran ground to the housing but got nothing. Using a test light shows the...
  4. R

    AC/heat blower motor only blows low

    Only the green compressor wire is plugged in here. Is there supposed to be another wire plugged in next to it? Sent from my SAMSUNG-SM-G870A using Tapatalk
  5. R

    AC/heat blower motor only blows low

    I have power to the resistor on the blower box when the key is on at all 4 terminals but no fan. I'm guessing this extra fuse maybe is the wire around from the fuse block? Sent from my SAMSUNG-SM-G870A using Tapatalk
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    AC/heat blower motor only blows low

    Well I got home and dug a little further. Apparently when I was feeling air was when I was driving down the road. Sitting still in my driveway I get nothing. I took a look at my fuse panel and the ac fuse is out and the top spring holder for the fuse is gone? Sent from my SAMSUNG-SM-G870A...
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    AC/heat blower motor only blows low

    No it feels the same no matter where the selector switch is. I ordered a new hose and drier on rock auto and found a mfg closeout on blower resistors for $3.99. I went ahead and added on to the order. Sent from my SAMSUNG-SM-G870A using Tapatalk
  8. R

    AC/heat blower motor only blows low

    Im starting the process into getting my Heater and AC working in my 78 C25 GMC. When I turn the blower on it only blows very lightly no matter where I put the switch. Can anyone tell me what I need to check to see whats going on? The guy I bought it from said the ac works but the line has a...
  9. R

    How much fluid is in a 350 block?

    I pilfered around the shop and found all the components to a radiator flush kit I bought several years ago. I didnt have any radiator flush but I ran the water for a while until I got clear water.
  10. R

    How much fluid is in a 350 block?

    Are there drain plugs in the block to get the water out of the block? Sent from my SAMSUNG-SM-G870A using Tapatalk
  11. R

    How much fluid is in a 350 block?

    I wasn't planning on using a flush kit, just running a few cycles of water through. Right now there is no thermostat so it should cycle through quickly. Sent from my SAMSUNG-SM-G870A using Tapatalk
  12. R

    How much fluid is in a 350 block?

    Ive been working on the temp sending units and such on my 78 C20. The coolant ive drained out has been pretty brown and dirty. Before I put a thermostat back in I thought it would be a good idea to run water through the block and drain it out several times until I get cleaner water. When I...
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    Temp gauge/sending unit issues

    Well I finally got the gauge to move. It is reading quite low right now. Hopefully when I get the thermostat installed I can get my engine back up to proper temps. Sent from my SAMSUNG-SM-G870A using Tapatalk
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    Temp gauge/sending unit issues

    The water neck on my engine has 2 fittings on it. One is 1/2 npt. I put the sender in the neck. I'm going to haul some water the the farm in a bit and will see if it works. Also found out that I don't have a thermostat right now so that's on the list. Sent from my SAMSUNG-SM-G870A using Tapatalk
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    Temp gauge/sending unit issues

    So for my 78 gauge to work I need to find a sending unit that ohms out at 350 cold? Sent from my SAMSUNG-SM-G870A using Tapatalk
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