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  1. T

    Brakes won’t bleed, help!!!

    Yeah I replaced the two lines that come out of the MC and the front right hose. I was trying to do all of them at the same time but couldn’t get the 2 front lines off the proportioning valve. I think I have the front bled but the brakes feel very spongy. Good enough to get the truck out of the...
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    Brakes won’t bleed, help!!!

    I either do the two person method or with a water bottle with some fluid in it and tubing. I got the fronts bled eventually. We pushed the pedal hard 5 times and held it, then cracked the bleeders. Did this until it was free of air. I did the rears first but just never saw much flow. Worked...
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    Brakes won’t bleed, help!!!

    I have tried bleeding the front and the rear and I cannot reset the proportioning valve physically or thru pedal action. I had to replace the front passenger caliper and hose. While I was at it I changed the hard lines coming out of the master cylinder. Neither the front nor the rears really...
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    What is this noise after belt change?

    Yeah not sure, I will cut that old hose open later. I swapped out that hose and while I was at it did the 2 lines coming out of the master cylinder. Was trying to change the 2 lines that come out of proportioning valve as well but no luck. I now have no brakes bc the proportioning valve needs...
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    What is this noise after belt change?

    Noise came back and must have been the caliper/pads. I pulled caliper off the passenger side and I am shocked at the brake pad wear. Only extreme heat could have caused this. They have less than 1000 miles of wear. Caliper didn’t look too bad but the rubber piston seal was more extended in one...
  6. T

    Dual tank solenoid valve

    Yeah I got a better look of where it was coming from and yes it’s goes to behind the compressor. Sorry about that, for a second I thought it was fuel related It’s leaking something there though. AC doesn’t have a belt so I’m assuming it doesn’t work, the things do spin on the front though which...
  7. T

    Dual tank solenoid valve

    Thank you, I do have this book. Is there a better one?
  8. T

    Dual tank solenoid valve

    @AuroraGirl is this part of the fuel system too? Fuel filter?
  9. T

    What kind of plug can I use?

    Let me think about it! I don’t normally get rid of stuff on my cars unless it’s broken.
  10. T

    What kind of plug can I use?

    Weird, that must just be a local problem we have in our neighborhood then.
  11. T

    Dual tank solenoid valve

    I will be doing all the work on this truck myself. $500 seems reasonable to me.
  12. T

    What kind of plug can I use?

    It seems like this isn’t a hard to find tee unless I’m missing something…is the size what’s unique about it?
  13. T

    What kind of plug can I use?

    It seems like this isn’t a hard to find tee unless I’m missing something…is the size what’s unique about it?
  14. T

    Dual tank solenoid valve

    Oh i absolutely appreciate the “are you sure you want to get into this” heads up. While I learn as I go and don’t have a mechanical background, I feel very capable to do most things on the truck. I am an aerospace test engineer so im very comfortable but know my limitations. I would never touch...
  15. T

    Dual tank solenoid valve

    What is the one in the middle? Hard for me to tell sizes.
  16. T

    Dual tank solenoid valve

    I’ll look at the gas caps tonight. Cool info!
  17. T

    Dual tank solenoid valve

    D Do you mean this? Literally everything on this truck is original. Nothing has been fiddled with from what I can tell. And yes it’s an LT9 5.7L 350cid V8 3/4 ton HD chassis Camper Special Assembled in Fremont, CA 1980 110k miles Any of that mean anything important?
  18. T

    What kind of plug can I use?

    Got the brass tee removed and the brake line reconnected, thanks guys! How full should the master cylinder be? I noticed the front chamber was lower than the rear one, but I don’t know what is too low.
  19. T

    Dual tank solenoid valve

    Thank you! Yeah I had stumbled on a lot of videos and posts about them not being produced anymore, pretty silly but at least there’s a solution. I work with solenoid valves a lot; they can be pretty robust but not for 40 years. Honestly I don’t think I need 2 gas tanks but bc it was standard I...
  20. T

    Dual tank solenoid valve

    If u can tell me how the 6 lines are supposed to be I can tell you what’s different. 4 of the 6 ports on my valve assembly are capped. Mine is the same as this picture. The only 2 lines that are connected from this valve assembly go to the RH tank I don’t use. Each sending unit has 3 hoses...
  21. T

    Dual tank solenoid valve

    Truck started with no connector. I switched the in cab switch to RH and it dropped to empty but continued to run. Switched it back to LH and no change. Looked at the valve under car and 4 of the 6 hoses are capped. Only 2 hoses go anywhere. I’m assuming this means that tank isn’t connected at all?
  22. T

    Dual tank solenoid valve

    Yeah I understand the confusion I just think a truck would actually start even if switched to an empty tank bc there may still be some fuel present. It would die but possibly start, sorry for the assumptions. I’ll see if it starts when I get home and see if the saga continues! Thank you for ur help.
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    Dual tank solenoid valve

    What part of truck wouldn’t start doesn’t tell you the battery is dead? I didn’t realize that wasn’t clear, my apologies. Yes, truck wouldn’t start bc that connection I made somehow drained the battery. Truck didn’t turn over or try it.
  24. T

    Dual tank solenoid valve

    That is an interesting thought… But that connector has been disconnected the entire time I’ve had the truck. In the cab when I switch it from left-hand to right hand tank, the fuel level drops to zero because that tank is empty and unused my neighborhood I bought it from said something happened...
  25. T

    Dual tank solenoid valve

    I noticed an unplugged connector on my dual tank solenoid valve setup and plugged it in. Next day my truck wouldn’t start. Is this due to it not being properly grounded? 1980 gmc c2500

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