Chevy C10 Squarebody Truck DUAL FUEL Tank Valve Replacement

This week we save you money! Swapping in a new valve to replace the original dual fuel tank valve in my 1986 Chevrolet C10 Squarebody!
I take you through what the truck was doing, what I have replaced so far and then the final fix! It's just me this week so you will be missing Dad!
VALVE USED: a.co/d/agS2VoK
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#c10 #squarebody #chevy #truck #repair #howto #chevytruck

[@blumasa5941]

Just the information I was hoping to find! Just got an 81 c20 with dual tanks so this will come in handy.

[@shift_points]

Excellent! That's what I like to hear!

[@jimmyg5687]

Thanks for showing me that I have the same problem

[@shift_points]

Glad to do it! Thanks for watching and subscribing!

[@julianshernandez-jz9tf]

Good stuff

[@shift_points]

Thank you sir! I'm glad it helped!! Thanks for subscribing!

[@julianshernandez-jz9tf]

My 87 is not reading the fuel gauge I can have half a tank and it will only read a quarter tank Thinking this might be the problem

[@shift_points]

@@julianshernandez-jz9tf could be! Might be a bad or stuck sending unit in the tank too!

[@miguelmartinezjr.8592]

That really small line where there is the 2 ports. Can that just be plugged or is that connected to vacuum

[@shift_points]

Humm I'm not 100% sure where you are talking about there.

[@carlsny1023]

just removed my valve on my 1980 c-10 and it only has one terminal, not the multi pin connection on yours and on the replacement part.. anybody know anything about this one?

[@shift_points]

I saw something about this. I believe I saw there is a pigtail you can buy to replace the connection you have with the multi pin. I think it was a design change that was made in later years.

[@carlsny1023]

@shift_points thanks so much for the quick response! also, did you drain your tanks before removing? I didn't, i just pinched off the lines as i removed them but then when i removed the vice grip, no gas came out of my lines from either tank.. shouldnt it have flowed out?

[@shift_points]

@@carlsny1023 no I didn't drain mine. Since the fuel pump isn't pumping it should just drain the lines.

[@SammyRangel-ep4yr]

I have a 79 GM dual tank do you have any videoson hose routing 40 missions

[@shift_points]

No I don't! I haven't had to do much on this other than this valve replacement.

[@gtemplesrt8]

Ive got a 91 R3500 squarebody dually with a 502/4l80e but it died on me soon as i took it home and then it died completely that weekend after i got the paperwork switched to my name. 1 tank it will turn over but not start and the right tank it will fire but not stay running for mor than a couple seconds and if i pump the gas it kills it. Im thinking fuel pump or sending units but now thinking it may be that valve partially because i noticed the gauge did the same thing! It buried itself after i switched it a few times.

[@shift_points]

That sure sounds like a combo of things for sure! When mine had given up it would run the fuel out of the lines and that's all it would go but it wouldn't shut off for about 5 miles. So sounds like the valve and like you said maybe a fuel pump.

[@gtemplesrt8]

@shift_points that's what I was thinking. It's at the shop waiting on them to figure it out. I don't have the tools or place to work on it where I live unfortunately.

[@gtemplesrt8]

Thank you!

[@maroman556]

My dually square gave me fits shortly after I bought it. Both tanks were feeding rusty fuel and clogging up filters.

[@jayrouxx8096]

How'd you get the two bolts holding the fuel selector valve off I'm having trouble getting to those lol

[@shift_points]

It helps if you are a contortionist 😂😂 I had to use a racket wrench and get it on then basically turn it a few teeth at a time. Once you get them loose I was able to thread them out by hand. Not easy though for sure!

[@jayrouxx8096]

@@shift_points yea man I'm going to keep trying and see if using one will do better 14 or 15 I suppose

[@shift_points]

@@jayrouxx8096 I'm blanking on what it was. I thought I remembered it being a 1/2" or 9/16" head.

[@ari1234.]

What size hoses were used on the valve? Thanks

[@shift_points]

3/8" for the primary side and 5/16" for the secondary side.

[@ari1234.]

@@shift_points Thanks I never used the drivers LH tank.I was told it was disconnected..perhaps is the valve .will check

[@shift_points]

@@ari1234. Could be!