Fuel gauge help??? 66' Chevy C10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

still1graphics · 05-03-2016, 09:21 PM

Has anyone experienced this problem, I put a new fuel tank in the truck with a new sending unit and it seems like the fuel gage wants to work until I turn the blinkers on or the lights and it will pull the needle down past empty or with the blinker on it will cause the gauge to jump back and forth? It seems like it's a wiring issue or a ground issue. Any help or advice troubleshooting this would be much appreciated!

**Captainfab** · 05-04-2016, 12:43 AM

It sounds to me like you have a ground issue. If everything worked before the new fuel sender, I would look there first. Is the ground on the sending unit intact?

still1graphics · 05-04-2016, 06:32 AM

Yes the ground wire is hooked back up to the cab wall just like it use to be? Could it be the fuse box is not grounded good or the steering column?

YOLO · 05-04-2016, 09:17 AM

Quote:

Originally Posted by still1graphics

Yes the ground wire is hooked back up to the cab wall just like it use to be? Could it be the fuse box is not grounded good or the steering column?

That is very likely. Use a jumper wire to extend the ground to another location and try again.

still1graphics · 05-04-2016, 09:39 AM

OK cool, where would you suggest me tying into the ground into the fuse block or somewhere on the column? Or is it somewhere else that I'm missing.

YOLO · 05-04-2016, 11:33 AM

Quote:

Originally Posted by still1graphics

OK cool, where would you suggest me tying into the ground into the fuse block or somewhere on the column? Or is it somewhere else that I'm missing.

Try for a structural piece. You can make your jumper wire as long as you need to get to a spot that is definitely grounded.

05-03-2016, 09:21 PM	#1
still1graphics Registered User Join Date: Oct 2013 Location: Columbia, Sc Posts: 57	Fuel gauge help??? 66' Chevy C10 Has anyone experienced this problem, I put a new fuel tank in the truck with a new sending unit and it seems like the fuel gage wants to work until I turn the blinkers on or the lights and it will pull the needle down past empty or with the blinker on it will cause the gauge to jump back and forth? It seems like it's a wiring issue or a ground issue. Any help or advice troubleshooting this would be much appreciated!

05-04-2016, 12:43 AM	#2
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Fuel gauge help??? 66' Chevy C10 It sounds to me like you have a ground issue. If everything worked before the new fuel sender, I would look there first. Is the ground on the sending unit intact? __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

05-04-2016, 06:32 AM	#3
still1graphics Registered User Join Date: Oct 2013 Location: Columbia, Sc Posts: 57	Re: Fuel gauge help??? 66' Chevy C10 Yes the ground wire is hooked back up to the cab wall just like it use to be? Could it be the fuse box is not grounded good or the steering column?

05-04-2016, 09:39 AM	#5
still1graphics Registered User Join Date: Oct 2013 Location: Columbia, Sc Posts: 57	Re: Fuel gauge help??? 66' Chevy C10 OK cool, where would you suggest me tying into the ground into the fuse block or somewhere on the column? Or is it somewhere else that I'm missing.



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