Inline fuses - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Slick1 · 04-10-2002, 02:20 PM

On a 1970 PU, there are two inline fuses, one near the battery, and one on the other side of the radiator support near the voltage regulator. My schematic show these fuses giong into the firewall connector, but it shows no wire on the other side of the connector. Does anyone know what these fuses are for, and what size (amperage) each fuse should be?

my new 72 · 04-10-2002, 03:12 PM

I am not too sure, but when I replaced these two blown fuses on my truck, my amp gauge started to work again.

HuggerCST · 04-10-2002, 03:33 PM

Well, I know that they are 4 amp fuses, but that's all I can remember. (got CRS disease) LOL

Slick1 · 04-10-2002, 03:39 PM

Thanks guys. I'll stick some 4 amp fuses in 'em, and check and see if the ammeter works before and after.

if anyone else can tell me where these two wires end up, I'd appreciate it

[This message has been edited by Slick1 (edited April 10, 2002).]

**Tim Christian** · 04-10-2002, 06:47 PM

Welcome to the board Slick1!

------------------
67 GMC Stepside(UNDER CONSTRUCTION)
67 GMC Custom
67 Chevy C-30

Longhorn Man · 04-10-2002, 07:05 PM

Yes, they are for the amp guage.

------------------
'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio

BobbyK · 04-11-2002, 02:17 AM

Just to confirm,yes...two 4 amp fuses,both for the voltmeter gauge.

------------------
"71"blazer,rust free(bought in Arizona),350SBC
(375HP),700R4,factory G.M. TPI.Living in Santa Barbara,California.Ongoing project.

O'l Buck · 04-11-2002, 02:33 AM

Wow, maybe that's the reason my volt meter never has worked!!! I'll have to check that out in the morning. BTW, welcome to the board, Slick!!

------------------
Ol' Buck: '72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84
ralleys and 31/10.5s

Angel girl: 67 Cutlass convertible
330, 3spd stick

Greener: 90 GMC Jimmy
350/auto
Chad Stephens
Orleans,NE

no name yet: 72 442 under serious construction

Slick1 · 04-11-2002, 08:14 AM

Thanks for the info and the welcome, Tim and Buck. I guess I'll need to hook those back up. The one close to the battery has the wire broken at the fuse holder, so I'll need to replace that. I don't think the ammeter has ever worked quite right!

meathead95 · 04-11-2002, 08:19 AM

welcome to the board from central illinois!

Slick1 · 04-11-2002, 10:39 AM

here are some pics for you guys:
(sorry can't get the "true URL" to work) http://photos.yahoo.com/bc/larry202b...+Truck&.view=t

[This message has been edited by Slick1 (edited April 11, 2002).]

JW · 04-17-2002, 04:52 PM

I fried the Fus Link on my 72, replaced it with a inline fuse. Now I have nothing but electrical problems, the inline fuse pops when different electrial items are used. The fan switch, head lights on turn signals used,etc. I have used 10amp - 20 amp fuses.

I have not been able to find a Fus Link replacement.

Looking for an answer.

------------------
72 Cheyenne Super, Fleetside, Shortbed,
Original Owner

TC70C10 · 04-17-2002, 05:08 PM

I eliminated mine altogether and tied the wires together. Been like that for a couple years.

Slick1 · 04-17-2002, 06:25 PM

Have you tried slo-blo fuses? the fusable link would be more like a slow blow fuse, I would think. I'm not sure what the current rating of it is though. maybe someone on the forum might know. removing it altogether could cause a fire if something should short out.

[This message has been edited by Slick1 (edited April 17, 2002).]

Slick1 · 04-19-2002, 03:50 PM

Also, I noticed last night that o'Reillys carries universal replacement fusable links.

04-10-2002, 02:20 PM	#1
Slick1 Registered User Join Date: Mar 2002 Location: Olathe, Ks USA Posts: 29	Inline fuses On a 1970 PU, there are two inline fuses, one near the battery, and one on the other side of the radiator support near the voltage regulator. My schematic show these fuses giong into the firewall connector, but it shows no wire on the other side of the connector. Does anyone know what these fuses are for, and what size (amperage) each fuse should be?

04-10-2002, 03:12 PM	#2
my new 72 faster, faster, faster Join Date: Dec 2001 Location: Houston ,Texas ,USA Posts: 1,354	I am not too sure, but when I replaced these two blown fuses on my truck, my amp gauge started to work again. __________________ I'm going to Law School, wanna debate? It's good practice.

04-10-2002, 03:33 PM	#3
HuggerCST Registered User Join Date: Jul 2001 Location: North Louisiana Posts: 4,501	Well, I know that they are 4 amp fuses, but that's all I can remember. (got CRS disease) LOL __________________ Wynne 70 CST short fleet Hugger orange & white, 350/350, ps, pb, air, tilt, tach/vac/speedwarning, original buckets, AM/FM, oak bed floor, shoulder belts, 3.5"/5.5" drop, 20" American Racing VN425s. Build thread 53 Chevy shortbed 69 Camaro Click here to subscribe Chevy GMC International Truck Club Louisiana Charter Member http://www.louisianaclassictruckclub.com

04-11-2002, 02:17 AM	#7
BobbyK Registered User Join Date: May 2000 Location: Petrolia,Ontario,Canada but working in Port Huron,Mi. Posts: 1,769	Just to confirm,yes...two 4 amp fuses,both for the voltmeter gauge. ------------------ "71"blazer,rust free(bought in Arizona),350SBC (375HP),700R4,factory G.M. TPI.Living in Santa Barbara,California.Ongoing project. __________________ 71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE

04-11-2002, 02:33 AM	#8
O'l Buck Recovering Truck Driver Join Date: Mar 2002 Location: Orleans, NE USA Posts: 1,883	Wow, maybe that's the reason my volt meter never has worked!!! I'll have to check that out in the morning. BTW, welcome to the board, Slick!! ------------------ Ol' Buck: '72 Chevy 1/2T 4x4 shortbox stepside 350/350auto on '84 ralleys and 31/10.5s Angel girl: 67 Cutlass convertible 330, 3spd stick Greener: 90 GMC Jimmy 350/auto Chad Stephens Orleans,NE no name yet: 72 442 under serious construction __________________ 67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska

04-10-2002, 03:39 PM	#4
Slick1 Registered User Join Date: Mar 2002 Location: Olathe, Ks USA Posts: 29	Thanks guys. I'll stick some 4 amp fuses in 'em, and check and see if the ammeter works before and after. if anyone else can tell me where these two wires end up, I'd appreciate it [This message has been edited by Slick1 (edited April 10, 2002).]

04-10-2002, 06:47 PM	#5
Tim Christian Senior Member Join Date: Dec 1999 Location: TN/VA Posts: 6,388	Welcome to the board Slick1! ------------------ 67 GMC Stepside(UNDER CONSTRUCTION) 67 GMC Custom 67 Chevy C-30

04-10-2002, 07:05 PM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Yes, they are for the amp guage. ------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. If you need a pic posted, E-mail me at longhornmail@yahoo.com Andy, in Columbus Ohio

04-11-2002, 08:14 AM	#9
Slick1 Registered User Join Date: Mar 2002 Location: Olathe, Ks USA Posts: 29	Thanks for the info and the welcome, Tim and Buck. I guess I'll need to hook those back up. The one close to the battery has the wire broken at the fuse holder, so I'll need to replace that. I don't think the ammeter has ever worked quite right!

04-11-2002, 08:19 AM	#10
meathead95 computer illiterate Join Date: Jan 2001 Location: Des Moines, IA Posts: 6,446	welcome to the board from central illinois! __________________ 72 2wd blazer 72 swb 4x4

04-11-2002, 10:39 AM	#11
Slick1 Registered User Join Date: Mar 2002 Location: Olathe, Ks USA Posts: 29	here are some pics for you guys: (sorry can't get the "true URL" to work) http://photos.yahoo.com/bc/larry202b...+Truck&.view=t [This message has been edited by Slick1 (edited April 11, 2002).]

04-17-2002, 04:52 PM	#12
JW Registered User Join Date: Apr 2000 Location: Carmichael, Ca Posts: 67	I fried the Fus Link on my 72, replaced it with a inline fuse. Now I have nothing but electrical problems, the inline fuse pops when different electrial items are used. The fan switch, head lights on turn signals used,etc. I have used 10amp - 20 amp fuses. I have not been able to find a Fus Link replacement. Looking for an answer. ------------------ 72 Cheyenne Super, Fleetside, Shortbed, Original Owner __________________ 72 Cheyenne Super, Fleetside, Shortbed, Original Owner, Special Ordered 350ci/340hp, Auto Trans, 3:70 Posi, Tow Package Northern Calif

04-17-2002, 05:08 PM	#13
TC70C10 Registered User Join Date: Nov 2001 Location: Harvest, AL 35749 Posts: 337	I eliminated mine altogether and tied the wires together. Been like that for a couple years. __________________ 1981 K5 Blazer 305, 4spd, 4x4, 4" Lift, custom bumpers, Warn 9.5 Ti Winch 1995 T10 Blazer 4.3L 4x4 (Son's) 2004 GMC Envoy 4.2L 2WD 2005 GMC Sierra Crew Cab Z71 4x4 5.3L 240 Fun Finder Travel Trailer Harvest, AL 35749

04-17-2002, 06:25 PM	#14
Slick1 Registered User Join Date: Mar 2002 Location: Olathe, Ks USA Posts: 29	Have you tried slo-blo fuses? the fusable link would be more like a slow blow fuse, I would think. I'm not sure what the current rating of it is though. maybe someone on the forum might know. removing it altogether could cause a fire if something should short out. [This message has been edited by Slick1 (edited April 17, 2002).]

04-19-2002, 03:50 PM	#15
Slick1 Registered User Join Date: Mar 2002 Location: Olathe, Ks USA Posts: 29	Also, I noticed last night that o'Reillys carries universal replacement fusable links.



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