GIMME FUEL GIMME FIRE - Wiring Dual Tank LS Swap Fuel System + FIRST START - UTX

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Today at Ugly Truck, we're wiring up the dual fuel pumps and sending units on this 1986 C10 6.0 LS swap through the OEM donor fuse panel. We've had a lot of questions about wiring the fuel system, so we go over the switch, switch valve, and all the details. We also wire the PCM power ignition and starting circuits, and talk about the neutral safety switch.
SELECTOR SWITCH PART NUMBER: Standard DS1807
Need a MULTIMETER? Check out the Tesmen TM-510! amzn.to/3PcPB2E
Jerry's Fuel System RANTS: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-sjo6aOLdu-w.html
Easy Squarebody FUEL PUMPS: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-fe8Lxc-ogY8.html
Building DUAL TANK Fuel System: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-NtfJcXJBirg.html
For more helpful LS Swap videos, click here! ru-vid.com/group/PL3Xf8yWArPC5Zw2UPwTvSvFt8CjEBSFiO
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7915 E. Division St.
Strafford, MO 65757
QCRWHARFSEXW9TX4
#squarebody #lsswap #c10 #lsc10

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Опубликовано:

15 сен 2023

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Комментарии : 103

@UglyTruckExperience 9 месяцев назад

💎 Need a multimeter? Check out the Tesmen TM-510! 💎 It's UTX approved! amzn.to/3PcPB2E

@benjaminnafarrate5550 9 месяцев назад

This is the best solution for C10’s with dual tanks I have seen. The 87 fuel selector is the best option for an LS swap and the use of relays with your diagrams is awesome. Great video I’m still working on my 86 but have been sidetracked and the wife wants me to sell it. Lol. When you guys started the truck that is a great feeling I want to see more excitement from Jerry. Maybe even a happy dance! Great job! That is something to be very proud of!

@UglyTruckExperience 9 месяцев назад

Thanks Ben! Hearing that engine fire up was definitely a big sigh of relief! No happy dance, but Jerry had a celebratory beverage when we were done. 😁🍻

@KarlGillcrist 9 месяцев назад

Great to see another sweet square body going back on the road for many happy years thanks to your attention to detail and pride of workmanship thanks for keeping them moving on down the road Karl from eastern Canada

@UglyTruckExperience 9 месяцев назад

Thanks Karl! It was awesome seeing it run and drive. It actually came to our shop with a 4.3 and a broken crankshaft, so hearing that 6.0 is a big upgrade! We appreciate you watching! --Emily and Jerry

@KarlGillcrist 9 месяцев назад

Yes i watched that video I've never seen one broke that bad 4.3's are quite tough i have one in a safari van that has 668000 km or 417000 miles on it with service records that prove it. the body gave up first engine still runs take care and stay safe Karl@@UglyTruckExperience

@crsmith56 9 месяцев назад

Hey UTX, working on my grandfathers 1985 C10 Silverado that was gifted to me after my college graduation. I am actually, as we speak, trying to get all the wiring bugs worked out and get it 100% working. A tool like that would go a long way for me to tackling the current projects I am working on and maybe one day diving into my hopes of an LS swap with this tool and your shared knowledge. Love your videos and information you give to us all. Keep up with the awesome videos and looking forward to the next one!

@UglyTruckExperience 9 месяцев назад

Thanks for tuning in, CR! That's a pretty sweet graduation gift! We'll put your name in the hat for the multimeter! --Emily and Jerry

@UglyTruckExperience 9 месяцев назад

Hey CR! We picked your name for one of the multimeters! Just send us an email at uglytruckexperience@gmail.com with your address and we'll send it your way! We appreciate you watching our stuff! --Emily and Jerry

@crsmith56 8 месяцев назад

@UglyTruckExperience Hey Emily and Jerry. Thank you very much for choosing me! I apologize for the late reply. Hopefully I am still able to claim your generous gift!

@chrismorton2633 9 месяцев назад

I enjoy your approach and the tech tip time you spend explaining the electronics. I am working on a 1973 Buick Apollo early stages of LS Swap. Learning how to use social media platforms to spend time with my granddaughter as I introduce her to automotive interest. The multimeter will come in handy as mine was destroyed in my relocation to AZ. Keep up the good work!

@UglyTruckExperience 9 месяцев назад

Awesome to hear that you and your granddaughter are spending quality time together under the hood! There are lots of good LS swap groups on Facebook that have great information. We'll put your name in the hat for a new multimeter! Thanks for tuning in, Chris! Emily and Jerry

@UglyTruckExperience 9 месяцев назад

Hey Chris! We picked your name for one of the multimeters! Just send us an email at uglytruckexperience@gmail.com with your address and we'll send it your way! We appreciate you watching our stuff! --Emily and Jerry

@3gunshooter60 9 месяцев назад

Great video ya'll. Love your LS swap content. So much to learn. Thanks for sharing.

@UglyTruckExperience 9 месяцев назад

Thanks Randy!

@bfdozer 9 месяцев назад

Very informative as usual. Keep the videos coming.

@UglyTruckExperience 9 месяцев назад

Thanks Dozer!

@mjo326 9 месяцев назад

Love everything about your videos. Great content and well-made.

@UglyTruckExperience 9 месяцев назад

Thanks MJ! We appreciate you tuning in! Emily and Jerry

@chevysrus 9 месяцев назад

This info is Golden!!!! Thank man!!!

@UglyTruckExperience 9 месяцев назад

We appreciate you tuning in!

@haniballecter7605 4 месяца назад

great job very intricate detail

@UglyTruckExperience 4 месяца назад

Thanks! We appreciate you watching! --Emily and Jerry

@GrandPitoVic 9 месяцев назад

Awsome!!!! Great content as usual guys. I ordered me one of those Tesman testers under your link. These little testers are great. Thank you.

@UglyTruckExperience 9 месяцев назад

Thanks Hugh! We've used ours quite a bit. It's great for a basic multimeter. We appreciate you ordering one!

@Grizzlyscustoms 9 месяцев назад

Love your videos, keep them coming.

@UglyTruckExperience 9 месяцев назад

Thanks! We appreciate you watching!

@jmooney2880 9 месяцев назад

Awesome video! Very good info!

@UglyTruckExperience 9 месяцев назад

Thanks Mooney! We appreciate you tuning in! 👋

@travist3379 9 месяцев назад

I could always use a 2nd DVOM and I'm in the beginning stages of putting together a twin turbo 5.3 and putting it in an 89 Chrysler Conquest TSI. Likely putting in a whole new body harness with the engine management harness to simplify things. Keep up the great work!

@UglyTruckExperience 9 месяцев назад

Thanks Travis! It's always handy to have an extra. We'll put your name in the hat for the multimeter! Thanks for tuning in!

@throttlewatch4614 9 месяцев назад

Oooo a multi meter that would be great for finding the problem on my 1976 XL 250 and my other motorcycle projects semi truck and square body build

@UglyTruckExperience 9 месяцев назад

We'll put your name in the hat! It's fairly small, so it would be handy to throw it in the truck with you on the road. Never know when you'll need one! Thanks for tuning in, Tim! Emily and Jerry

@vipersniper843 9 месяцев назад

Sounds nice 👍

@UglyTruckExperience 9 месяцев назад

We were definitely happy to finally hear it run! The exhaust sounds great. Thanks for tuning in, Viper!

@Chevrolet1994 9 месяцев назад

Great video as always thank you for taking the time to explain things, A new test meter would help me with my LS swap project for sure my Hobo Freight one is OK but is really cheap....I currently collecting parts to put a 4.8 in my 1994 Chevrolet 2500 with a 5spd and 4x4. I believe it will be much nicer than my 5.7 that was Carb swapped at some point in its life. Thanks

@UglyTruckExperience 9 месяцев назад

Thanks Chad! We had a 4.8 in our 70 C10 before we swapped to a 5.3, and it was great! We'll put your name in the hat for the multimeter. Thanks for tuning in! Emily and Jerry

@Chevrolet1994 9 месяцев назад

@@UglyTruckExperience Thank you!

@jonvasquez4729 9 месяцев назад

Great video! I’d love a better multimeter than the “free” one I got from Harbor Freight Tools, but it works enough to get me by. Hopefully it will go to someone in more need than myself. I’m glad to hear that y’all are finally getting some recognition outside of just us fans and friends! Jerry, there’s nothing like that first start-up, and the deep sigh of relief when it settles into an idle. Congrats! Cheers !! Till next time…

@UglyTruckExperience 9 месяцев назад

Thanks Jon! It's pretty cool to get new tools, but even cooler to be able to pass them along to you guys to use on your own projects. Thanks for tuning in, and I still haven't forgotten your shrine! 😁😁 Emily

@treborjm87 8 месяцев назад

Autel is the one I was looking at as well. I have seen some decent reviews, but can’t for sure determine if it will do a regen. Thanks Jerry!

@UglyTruckExperience 8 месяцев назад

If you get one let us know how you like it. Thanks Rob. Jerry

@nightshiftresto3159 3 месяца назад

you guys are awesome! I am doing my first 1979 square body and using this setup you are showing. 1 Question, I am assuming since the relay will have power with key on it will automatically turn on relay for left pump, so the other wires on left tank on switch will not be used. Is this correct? Thank you much!

@UglyTruckExperience 3 месяца назад

Hey Nightshift. The power that goes to the left fuel pump goes from the fuse box, through the original relay to a relay to switch tanks and then to the fuel pump. The relay has a connection at pin 30 and pin 87a on a relay without any power going to the relay. The relay is then given power when the switch is turned into the right hand tank. So correct, the wires that are from the left hand on the actual switch are not used. Hope that makes sense. Jerry

@trentdawg2832 9 месяцев назад

The dogs crack me up….especailly the lighter one😂😂😂

@UglyTruckExperience 9 месяцев назад

That's Juice! She's a mess, but we love her! 😆

@dereksimenac8844 9 месяцев назад

I take it that valve is spring loaded to return to left take in absence of power as opposed to the 86 valve that operates only when the switch is held in place until the valve is fully moved to the required position? Spoke about switch differences but didn't notice if you mentioned how the valve works differently too.

@UglyTruckExperience 9 месяцев назад

Hello Derek. Yes, the valve in it's normal position with no power would have a port that would send the return fuel back to that left tank. I believe we have talked about it in the last few fuel pump videos when we are running the lines. Thanks. Jerry

@tobycanales1062 9 месяцев назад

Awesome videos as always enjoy the dogs. Have you every done a Gen 4 with the e67 pcm and the separate trans computer

@UglyTruckExperience 9 месяцев назад

We have wired them, but haven't done a complete swap with one. We do have a donor here that is Gen 4 and we're excited to tear into it. Thanks for tuning in! Jerry and Emily

@wadebrowne5076 9 месяцев назад

Awesome video content yes I would like to have the multimeter. I'm still working on my 1978 C10 with donor from 2004 yukon 5.3 thanks

@UglyTruckExperience 9 месяцев назад

Thanks Wade! We'll put your name in the hat! How's your swap going?

@wadebrowne5076 9 месяцев назад

Very slow 🐌 finally got home and been trying to get shop organized while catching up on hunny do's since I was away about 6 months. But everyday lil closer lol thanks

@frankgonzalez6872 9 месяцев назад

Jerry how and what do you use to prime oil system on the LS before start up

@UglyTruckExperience 9 месяцев назад

Hello Frank. I use a tool that plugs into the oil sending unit fitting. I used it at the end of one of our videos that I will include a link to. If I didn't have this tool, I would remove the spark plugs, crank the engine for about 5 seconds at a time letting starter cool down for a bit between cranking time until I had oil pressure. Thanks for watching. Jerry ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-s3x764N3cus.html

@jasonbunting5361 9 месяцев назад

Can you put the intro clip wire connections on the white board. It doesn't seem to work for me, I guess my DNA wiring is for a different year, make and model. Great video.

@UglyTruckExperience 9 месяцев назад

I'm afraid that information is classified... 👽🛸🤣🤣 Thanks Jason!!

@jeffsuggs8597 9 месяцев назад

I need a multimeter. Working on 67 Chevy short bed, using 2004 suburban 4x4, going to make the 67 an all wheel drive.

@UglyTruckExperience 9 месяцев назад

That's awesome! We'll put your name in the hat for the multimeter! Thanks for tuning in, Jeff! Emily and Jerry

@frankgonzalez6872 5 месяцев назад

Jerry I did the fuel system you recommended on dual fuel tank 80 c10 been driving it for about 3000 miles and just ran into a problem were one tank is filling the other I used the Evel energy check valves one failed any recommendations on a better check valve . Thanks

@UglyTruckExperience 5 месяцев назад

Hey Frank. Is the right tank filling the left tank? Jerry

@UglyTruckExperience 5 месяцев назад

Most of these fuel pumps also have a check valve in them to maintain some fuel pressure in the lines while sitting. I would suspect the valve that changes your return to one tank or the other. Make sure that valve is working properly. Will be curious to see what you find. Jerry

@aristhompson8083 2 месяца назад

Recently did a fuel injected (Pro-flo-4 intake) big block swap in my 86 with dual tanks. I'm also running a Fitech Surge tank. The installer noticed the digital gauges (Intellitronix) are zeroing out now when I attempt to switch tanks. The gauges worked fine with my small block carbureted setup. In your opinion could this be due to needing the 87 selector switch or maybe a power issue?

@UglyTruckExperience 2 месяца назад

Hello Aris. It depend on how they wired the system. It would still need the 87 switch and the plastic valve that switched tanks unless they wired and plumbed it different. The surge tank really shouldn't have effected anything to do with the fuel switching or reading unless the wires leading to that switch valve were used in another manner. Jerry

@aristhompson8083 2 месяца назад

@@UglyTruckExperience thank you for the information!

@treborjm87 8 месяцев назад

Hey Jerry! What scan tool are you using? Will the one that you use do a forced regen on a duramax? Thinking about taking the plunge and buying a professional scan tool.

@UglyTruckExperience 8 месяцев назад

Hey Rob. I'm not sure if mine will do that or not. We use Alldata for a scan tool. I haven't been thrilled with it. I have been looking at Autel scanners recently and am thinking of giving them a try the next time around. Thanks. Jerry

@brianmiller909 6 месяцев назад

Putting a 5.3 in with a stock th 375 tranny that’s in my 85 c10 rwd what stall tq will I need?

@UglyTruckExperience 6 месяцев назад

Hello Brian. A stock 5.3 idles down around 600 rpm, so a stock low stall converter would be fine for you. I hope you are running a stock 5.3. Keep with the stock 5.3 and the stock low stall converter and everything will work fine. Thanks for watching. Jerry and Emily

@brianmiller909 6 месяцев назад

@@UglyTruckExperience ok thnx just wanted to make sure I didn’t have to buy a higher stall cuz the one that’s on it is brand new, you guys are great n I enjoy watching your channel.

@greddmyles3677 9 месяцев назад

I could use that multimeter, I've been working on my 97 yukon I bought and I've been having problems with a shortage. Alternator not charging, put a new one on and still don't know what's going on I got another battery but it goes down over night unless I unplug it. Then my 98 lumina I gotta find out the resistance on the key diode to get the right resistor to bypass the security system

@UglyTruckExperience 9 месяцев назад

We'll put your name in the hat for the multimeter! We appreciate you tuning in!

@jonblack6624 7 месяцев назад

wen you say pin 87 left pump, is the default power wen starting, wen right pump [87A] tank is empty, how do you activate left pump wen key switch is in RUN position, or does ECM sends power in both RUN n START key positions , if so, does that mean you shud always fill left tank n use right tank as primary n use its fuel first since switch kills right pump n 87A gets powered only wen switch relay gets deactivated by right tank switch, fuel circuit falls back into default mode...? right/correct

@UglyTruckExperience 7 месяцев назад

Hello Jon. That fuel pump relay has a connection from pin 30 to pin 87 when there is no power going to relay. The 12 volt wire that goes to the fuel pump from the fuse box will go to pin 30, then passed through relay to 87 and then to the fuel pump. When fuel tank switch is turned to right hand tank, power is supplied to relay which turns power from pin 30 to 87a that leads to the right hand pump. Pin 30 and 87 are open at that time, shutting down the left pump. On either tank, when one side is being used. The pump in the tank not being used is not running. Jerry

@jonblack6624 7 месяцев назад

Got it, having a senior moment n brain fart at same time...thanx@@UglyTruckExperience

@2sscole 9 месяцев назад

Could you do a video covering how to get guages wired in? Using the factory harness ?

@shaunthornock-hall146 9 месяцев назад

They have a video covering the speedometer to go from digital to mechanical. I am unsure on the others

@UglyTruckExperience 9 месяцев назад

We do have a swap coming up that we will be using the stock gauges and will make sure we get a video out on that. Thanks for watching. We appreciate it. Jerry and Emily

@shaunthornock-hall146 9 месяцев назад

@@UglyTruckExperience can't wait to see that one guys. Good work and thank you for showing us how to do this. It's nice having videos and great explanations that are, in my opinion, better than the forums! Keep it coming!

@richardbouchez2727 9 месяцев назад

working on a 1994 chevy 1500 I still have to find a wiring diagram

@UglyTruckExperience 9 месяцев назад

Hello Richard. Take a look at Alldata DIY. It is relatively inexpensive and gives people access to the diagrams we use. Thanks. Jerry and Emily

@trentdawg2832 9 месяцев назад

Nice job guys…..purrs like a kitten

@UglyTruckExperience 9 месяцев назад

Thanks Trent! 😸😸

@joeykennedy418 9 месяцев назад

Jerry, you often refer to schematics and encourage us to print off our own. Can you suggest which schematics to print off for the LS swap you did on this red truck?

@UglyTruckExperience 9 месяцев назад

Hello Joey. The donor for this truck was a 2004 GMC Yukon Denali. I use AllData for my wiring diagrams and the only ones I use are, Power and Ground Distribution, Powertrain Management and Transmission circuit to get them running and shifting. Thanks for watching. Let us know what your working on. Jerry

@joeykennedy418 9 месяцев назад

Thanks Jerry! I’m working on a ’87 square body. Donor is a 2002 Yukon XL.

@joeykennedy418 9 месяцев назад

One more question about the schematics if you don’t mind. I am pulling my schematics from ProDemand. I see all the wire numbers and slot locations (c1, f7, etc.) but where does is tell which plug to use. I’m referring to the different color plugs on the back of the fuse box. I think they are identified as plug A, B, C… how do I find that on the schematics? Hope that makes sense.

@UglyTruckExperience 9 месяцев назад

Hello Joey. That is a great question. I should address that sometime. As an example, you will look at a modern day diagram and see a 2 digit letter number combination that is underlined. That is the connector number. All of the pin numbers to the left of that Connector number are in that connector and they are not underlined. When you run into the next underlined two digit letter number combination, then you are dealing with a different connector. It would be great if they would also mention their connector color, but they use the connector numbers over and over again with different colors so I end up going to the connector that I believe it is and confirming it with the wire colors. They are also not great at mentioning which fuse box you are working with or splice connector locations. I guess we are lucky that we have the info that we do but you really have to double check it. Jerry

@joeykennedy418 9 месяцев назад

Thanks Jerry! Just before I read your comment, I figured it out because I was watching the “horn” video and noticed that you had the “C1” underlined. I think I’ve got it now. Y’all are great!

@jonjon_az 9 месяцев назад

That red head power generator.

@UglyTruckExperience 9 месяцев назад

It comes in handy sometimes! 👽👽😁

@billybushmaster 7 месяцев назад

I have an '85 short wide bed had somebody attempt to put an LS in it The fuel system needs some work and the computers need to be moved on the outside of the truck instead of in my glove box where are you located Do you do work on the square bodies for hire let me know I'm in Odessa Texas

@UglyTruckExperience 7 месяцев назад

Hello Billy. We are located in Springfield Missouri. I am swapping a Texas truck right now in fact. Jerry

@billybushmaster 7 месяцев назад

@@UglyTruckExperience I will send you an email 🐸

@GrandPitoVic 9 месяцев назад

Roflmfao!!!! You guys are great!!!!

@UglyTruckExperience 9 месяцев назад

Thanks Hugh! How's your swap going?

@jonblack6624 7 месяцев назад

did you wire up CHECK ENGINE light [your version] or use dakota dash one? I presume later, obdII plug? doing dakota dash swap video soon? give difficulty rating n cost of parts guesstamate , you said you programed dash, is that right ,? or ECM to acknowledge dash systems? more i watch , more learn more thot on each vehicle system is ECM controlled...less i want to tackle my project...your a great teacher, with FLAIR for detail ...patiently waiting for you guyses next intellectual LS swap video. I ve done my mechanical work on sbc for years, now i have new appetite for LS motor , not so much for ECM part of it, old dog new tricks thing....until next time...adios jerry n m

@UglyTruckExperience 7 месяцев назад

Hi Jon! On this truck, the check engine light is in the Dakota Digital dash. We'll have a video on installing that soon. They are a little complicated to install. It's just a matter of opinion. Some people prefer the looks of the Dakota Digital, and they are more accurate, but the stock gauges are easier to hook up. We appreciate you watching, and all your comments! Keep the great questions coming. --Jerry and Emily

@jonblack6624 7 месяцев назад

great I didn't miss that one, looking forward to it..@@UglyTruckExperience

@netster7601 9 месяцев назад

good morning I'm late today

@UglyTruckExperience 9 месяцев назад

Good morning, Alonso!

@geebopbaluba1591 9 месяцев назад

Would it be blasphemy to swap in a LS into my 1964 Dodge 440?

@UglyTruckExperience 9 месяцев назад

Yes, but it would be cool! 😆 We keep talking about swapping our 73 Dart. There's a group called LS Swapped Mopars on Facebook that has a lot of good information. Thanks for tuning in, Geebop!