GM Truck Fuel Gauge & Sending Unit Troubleshooting 1967-1987

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GM Truck Fuel Gauge & Sending Unit Troubleshooting 1967-1987

Рет қаралды 14,123

Күн бұрын

Just a short easy to follow tutorial on how to test and diagnose your 67-72 Chevy GMC truck or 73-87 Squarebody, using a battery, test probe and a multimeter.

Пікірлер: 23

@BiblesandC10s 3 ай бұрын

Good afternoon, sir. Let me tell you. I’ve been searching for a video like this for hours. You are very clear concise and it was. This was an amazing troubleshooting tutorial. I think you again I’m going tackle this today.

@American-OutdoorsNet 3 ай бұрын

Thank you.

@richardcranium5048 3 ай бұрын

I concur

@raymondshadrick9507 24 күн бұрын

You laid it and made it simple , happy with your video

@American-OutdoorsNet 23 күн бұрын

Glad to have helped and thanks for tuning in.

@Drakes_Garage 2 ай бұрын

Every word spoken was information. Great information. No more, no less. Thank you. Easy to follow along.

@American-OutdoorsNet 2 ай бұрын

Thanks for tuning in.

@sbteam1332 Күн бұрын

What a great video A+++

@American-OutdoorsNet 22 сағат бұрын

Thanks for watching!

@eliasdeleon9424 Ай бұрын

Great info. Thanks for the video

@American-OutdoorsNet Ай бұрын

Thanks for tuning in.

@Reaglesracing44_ 2 ай бұрын

on my 75 suburban the fuel gauge is reading at 3pm spot with key on or running. shut off it reads half on full tank. also tried another gauge with same reading

@borntobewild846 4 ай бұрын

Great info and teaching style

@richardcranium5048 3 ай бұрын

Jet Lag by Nazareth is a great song.... We do thing a different way back in the USA

@shiminowind 2 күн бұрын

Why did you hook the two sending units up differently on the grounds? 1st was connected from the battery to the SU directly with a second test clip from the gauge to the SU 2nd SU battery ground was hooked up directly to the gauge with a second clip connected to the gauge ground going to the sending unit. Same results just curious. I came to the conclusion it was a ground on my project before I decided to do a search and found this video. You confirmed my diagnosis thank you for the info. I just haven't gone to the sending units directly to figure out my issue. I have dual tanks on my project and neither show on the gauge. When I switch the tanks the gauge moves slightly so I know I'm getting a resistance change and the gauge fuse has 88-89 ohms so I know it's good. I got power to the gauge and I have a good ground but no signal whatsoever. I'll be back at it today to narrow it down further. Any feedback would be greatly appreciated. Should I blame the switch? Or move on

@American-OutdoorsNet 2 күн бұрын

Just showing multiple ways for testing. As for diagnosis, without specifics on the year and history I can't say much more, other than to focus on the basics ie ground, sending units, etc.

@shiminowind 2 күн бұрын

@@American-OutdoorsNet My project is a 79 Chevy 3/4 ton custom deluxe same setup here and wired the same. I mentioned the switch cause I was wondering if the switch could give a false condition in which the gauge doesn't indicate a ground at the SU cause of the 3 o'clock position even if everything is as it should be and working properly in the circuit. In other words the switch is working but can a loss in resistance an the switch drop the circuit and read at 3 o'clock but still give good ground a power connection throughout and not alow the gauge to function normally. History is unknown as it's a project and was bought as is. I've fixed over 80% of the electrical already, alot of shorts to ground and bad wiring. It runs amazing with the 327 sb camaro engine and gets fuel to the carb just fine. Doesn't stall at all. And never has had any fuel related problems. It's an electrical issue

@edwardanaya7577 5 ай бұрын

Hello, I have a 79 Chevy and was wondering where the tank selector switch connects? Mine was unplugged during the column replacement, thanks for your help!!

@marksanders1942 3 ай бұрын

Ok. You said leave comments and questions…so here. Goes. I have a 76 Chevrolet truck and there is no wire to the sending unit. Under the truck is a damaged white wire. Is that wire the sending unit wire? I have done no test yet but will. Thanks Mark

@American-OutdoorsNet 3 ай бұрын

The wire to the sending unit is not white. Go to the bulkhead connector and look for a pink or tan wire. It originally ran from there behind the engine, down past the starter, down along the passenger side frame rail. It is likely cut somewhere along that path and may be buried inside wiring conduit.

@marksanders1942 3 ай бұрын

@@American-OutdoorsNet thank you very much. I did forget to mention that this was originally a dual tank truck. Does that change anything? I am putting it back as only one tank I have not found the wire but will look again. Thank you very much

@BiblesandC10s 3 ай бұрын

Hello sir what if my gas gauge goes full circle and goes past full does any keep that is bad? As soon as I touch the power to the Gas gauge it rapidly goes in a circle and goes pass full