Battery gauge. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

A.P. · 07-12-2002, 04:51 AM

Does any body know how the battery gauge is connected?

**68 Stepside** · 07-12-2002, 06:00 AM

I'm not sure how it's all connected up. But if it isn't working, the first things to check are your fuses for it. There's one over by the junction block on the passenger fender (next to the battery), and there's one on the left side as well, you'll see the holders. They just pull apart and have very small low amperage fuses in them. Those are usually the culprit if the gauge isn't working.

TJ

**JIMs70GMC** · 07-12-2002, 06:04 AM

The factory ammeter measures the voltage drop across the wire used to charge the battery. Next to the battery mounted on the fender is a terminal post where the red wire from the battery along with another red wire that runs along the core support and a little black wire. The black wire goes to one side of the ammeter. This wire has an inline fuse, need to check that. As you follow the red wire along the core support it will come to another junction, One wire I believe goes to the regulator on the core support, another goes to the alternator and finnaly a third black wire goes to the other side of the ammeter. This is also fused. Need to check that. Mine was tucked up near the wiper fluid bottle. Hope this helps.......

A.P. · 07-12-2002, 06:43 AM

Thanks alot JIMs70GMC, I will check it as soon as I get off from work.

A.P.

**JIMs70GMC** · 07-12-2002, 08:12 AM

Don't you just hate that. Get all this usefull info and sitting at work.

oldyeller · 07-12-2002, 08:32 AM

it beats workin'. can you guess where i am? and not doin what i am supposed to?

johnnyp · 07-12-2002, 11:56 AM

Don't know if this will help, but hey, you can't have too much information

http://www.geocities.com/chevroletc1070/wiringdias.html

SWINGSAX68 · 07-12-2002, 01:12 PM

Hey Guys I'm having the same problem......but I took off that little fuse thingy by the battery. I know there is one by the windsheild fluid bottle, is one fuse sufficient?? When I tried to just run the little black wire straight to red battery charger wire nothing works....could it be that the fuse needs to be there? Can I buy a fuse to add there? Do I need that little junction box thingy or can I just wire them straight together, and let them free float????

johnnyp · 07-12-2002, 01:33 PM

You need the fuse to complete the circuit. You could just take out the fuse and splice the wire but I wouldn't - that fuse is there for a purpose, mainly to keep your truck from burning to the ground. You should be able to buy the fuse at any auto store.

1ToBjimmyk5 · 07-12-2002, 05:40 PM

My problem was that the printed circuit board was burnt

A.P. · 07-13-2002, 03:14 AM

Thanks guys, it turn out to be one of the fuses. It was well hiden.

A.P.

07-12-2002, 04:51 AM	#1
A.P. Black 72 Chevy Join Date: May 2002 Location: Los Angeles, California Posts: 662	Battery gauge. Does any body know how the battery gauge is connected?

07-12-2002, 06:00 AM	#2
68 Stepside huh? Join Date: May 2000 Location: Washington, Illinois Posts: 5,692	I'm not sure how it's all connected up. But if it isn't working, the first things to check are your fuses for it. There's one over by the junction block on the passenger fender (next to the battery), and there's one on the left side as well, you'll see the holders. They just pull apart and have very small low amperage fuses in them. Those are usually the culprit if the gauge isn't working. TJ __________________ Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay

07-12-2002, 06:04 AM	#3
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Here's the scoop.. The factory ammeter measures the voltage drop across the wire used to charge the battery. Next to the battery mounted on the fender is a terminal post where the red wire from the battery along with another red wire that runs along the core support and a little black wire. The black wire goes to one side of the ammeter. This wire has an inline fuse, need to check that. As you follow the red wire along the core support it will come to another junction, One wire I believe goes to the regulator on the core support, another goes to the alternator and finnaly a third black wire goes to the other side of the ammeter. This is also fused. Need to check that. Mine was tucked up near the wiper fluid bottle. Hope this helps....... __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

07-12-2002, 08:12 AM	#5
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	Don't you just hate that. Get all this usefull info and sitting at work. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

07-12-2002, 08:32 AM	#6
oldyeller Captain CAAAVVVMMMAAANNN! Join Date: Mar 2002 Location: Anna Texas Posts: 726	it beats workin'. can you guess where i am? and not doin what i am supposed to? __________________ 72 LWB Fleetside C10 Custom 350/350 97 GMC Yukon 4X4 SLT Anna, Texas check out the project old yeller

07-12-2002, 06:43 AM	#4
A.P. Black 72 Chevy Join Date: May 2002 Location: Los Angeles, California Posts: 662	Thanks alot JIMs70GMC, I will check it as soon as I get off from work. A.P.

07-12-2002, 11:56 AM	#7
johnnyp Keepin' It Stock Join Date: Aug 2001 Location: Grand Island, Nebraska, USA Posts: 554	Don't know if this will help, but hey, you can't have too much information http://www.geocities.com/chevroletc1070/wiringdias.html __________________ 72 Sierra Grande - Maych Forget about "do it right the first time". Do it wrong the first time to learn how, then do it right the second time.

07-12-2002, 01:12 PM	#8
SWINGSAX68 Now the others dig........ Join Date: May 2002 Location: San Antonio, TX Posts: 1,520	Same problem. Hey Guys I'm having the same problem......but I took off that little fuse thingy by the battery. I know there is one by the windsheild fluid bottle, is one fuse sufficient?? When I tried to just run the little black wire straight to red battery charger wire nothing works....could it be that the fuse needs to be there? Can I buy a fuse to add there? Do I need that little junction box thingy or can I just wire them straight together, and let them free float???? __________________ 68 Chevy C10 Stepside Black Primer 78 GMC Longbed White 09 Chevy Silverado Shortbed Granite Blue *LOOKING FOR A 67 4 DOOR IMPALA!!!Just like Sam and Dean Winchester!! 'Cause Mustangs are for p^#$ and you can fit a body in the trunk of a 67 Impala* MEMBER OF THE DRUM BRAKE CLUB Bachelor of Music in Jazz Studies Texas State University-San Marcos, TX Certified Music Educator I hope Mom is up there watching and being my Guardian Angel "I've got a fever.....and the only prescription.....IS MORE COW BELL" -The Legendary: Bruce Dickenson "F#$@ 'em up!!!!!!" -The Legendary: Rogelio Escobar TRUCKY LINKS** http://67-72chevytrucks.com/vboard/s...d.php?t=457750 http://67-72chevytrucks.com/vboard/s...d.php?t=461184 http://67-72chevytrucks.com/vboard/s...d.php?t=472848 http://67-72chevytrucks.com/vboard/s...d.php?t=417541 http://67-72chevytrucks.com/vboard/s...d.php?t=477788

07-12-2002, 01:33 PM	#9
johnnyp Keepin' It Stock Join Date: Aug 2001 Location: Grand Island, Nebraska, USA Posts: 554	You need the fuse to complete the circuit. You could just take out the fuse and splice the wire but I wouldn't - that fuse is there for a purpose, mainly to keep your truck from burning to the ground. You should be able to buy the fuse at any auto store. __________________ 72 Sierra Grande - Maych Forget about "do it right the first time". Do it wrong the first time to learn how, then do it right the second time.

07-12-2002, 05:40 PM	#10
1ToBjimmyk5 Registered User Join Date: Apr 2002 Location: Centreville,VA & Millsboro, DE Posts: 47	My problem was that the printed circuit board was burnt __________________ 1971 Chevy Blazer(looks like Jimmy),1988 Ford E350 Van,2001 Nissan Sentra(Wife), 1993 Nissan Sentra (to/from work),1985 Dixie (boat) with a big Johnson,And I want my 1970 Buick Conv. back!!!! Centreville,VA

07-13-2002, 03:14 AM	#11
A.P. Black 72 Chevy Join Date: May 2002 Location: Los Angeles, California Posts: 662	Thanks guys, it turn out to be one of the fuses. It was well hiden. A.P.



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