Electrical Disaster
07-12-2010, 12:38 PM
#1
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Car: 1991 Camaro RS
Engine: Carb 350ci bored .40
Transmission: 700r4
Axle/Gears: 2.73:1
Electrical Disaster
Ok 1991 Camaro Rs.
5.0L 305. v8 Standard. LO3.
Problem: Car battery drains out while driving.
Tried Fixes: New Battery, new alternator, new distrubutor cap and rotor (Didnt change Spark Plugs dont know why)
Mods: Only thing changed that i think could affect it is Fan is on a toggle switch but shouldnt cause this bad of a drain if any.
MISSING!!! My Junction Block was removed and all the hot wires going to it were spliced together
(Stupid friend did it)
So if anyone know what wires go to the Junction Block PLEASE let me know.
Also if anyone is in the DFW area in TX (I live between McKinney and Plano) and have extra time i would love to have a expert swing by and have a look at it for me. Thanks.
5.0L 305. v8 Standard. LO3.
Problem: Car battery drains out while driving.
Tried Fixes: New Battery, new alternator, new distrubutor cap and rotor (Didnt change Spark Plugs dont know why)
Mods: Only thing changed that i think could affect it is Fan is on a toggle switch but shouldnt cause this bad of a drain if any.
MISSING!!! My Junction Block was removed and all the hot wires going to it were spliced together
(Stupid friend did it)So if anyone know what wires go to the Junction Block PLEASE let me know.
Also if anyone is in the DFW area in TX (I live between McKinney and Plano) and have extra time i would love to have a expert swing by and have a look at it for me. Thanks.
07-12-2010, 01:19 PM
#2
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Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Master Of Disaster
The wires that go to the junction block are:
Fusible link for the alternator.
Fusible link for the fan.
An inline fuse.
A wire from the battery.
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Battery drain.
Sometimes the under-hood light does not go out so check that easy one first.
Then connect an ammeter in series with the battery.
If there is more than 50 milliamps there is excessive draw.
(You can use a small bulb such as a side marker bulb if you don’t have an ammeter.)
With everything turned off and doors closed observe the current flow.
Pull the fuses one at a time till you see the current drop.
That’s the circuit with the problem.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
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8 Wheels Corner Better Than 4, If You’re On The Outside You Have Fair Warning
.
Fusible link for the alternator.
Fusible link for the fan.
An inline fuse.
A wire from the battery.
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Battery drain.
Sometimes the under-hood light does not go out so check that easy one first.
Then connect an ammeter in series with the battery.
If there is more than 50 milliamps there is excessive draw.
(You can use a small bulb such as a side marker bulb if you don’t have an ammeter.)
With everything turned off and doors closed observe the current flow.
Pull the fuses one at a time till you see the current drop.
That’s the circuit with the problem.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
8 Wheels Corner Better Than 4, If You’re On The Outside You Have Fair Warning
.
07-12-2010, 01:39 PM
#3
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Car: 1991 Camaro RS
Engine: Carb 350ci bored .40
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Axle/Gears: 2.73:1
Re: Master Of Disaster
What do you mean by an "Inline Fuse" and the Fusible Link from the alternator is just the Thicker hot wire right?
And to find the drain, Where would i connect it exactly, in series means very little to a non-electrical engineered brain.
And to find the drain, Where would i connect it exactly, in series means very little to a non-electrical engineered brain.
07-12-2010, 01:40 PM
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Car: 1991 Camaro RS
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Re: Master Of Disaster
Also is there a place where i could order a new Junction Block?
07-13-2010, 09:03 AM
#6
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Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Master Of Disaster
What do you mean by an "Inline Fuse"
.
the Fusible Link from the alternator is just the Thicker hot wire right?
.
to find the drain, Where would i connect it exactly, in series means very little to a non-electrical engineered brain.
Therefore you must connect the ammeter or test light between the battery and battery cable.
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Happy Racing!
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How Come I Drive 400 Miles Most Weekends And Windup Where I Started?
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07-13-2010, 12:34 PM
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Car: 1991 Camaro RS
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Axle/Gears: 2.73:1
Re: Master Of Disaster
Ok welll that kinda helps but im still not getting the big picture here.
So the fusible link is just any wire spliced on to the alternator wire that is ran the the junction block.
The inline fuse i should go buy a bayonet fuse holder and run the wire thru it then to the junction block? But which wire/where is the the wire that needs this inline fuse supose to come from?
So the fusible link is just any wire spliced on to the alternator wire that is ran the the junction block.
The inline fuse i should go buy a bayonet fuse holder and run the wire thru it then to the junction block? But which wire/where is the the wire that needs this inline fuse supose to come from?
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07-13-2010, 12:35 PM
#8
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Re: Master Of Disaster
If you could pictures are better then a 1000 words.
07-13-2010, 03:14 PM
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Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Master Of Disaster
the fusible link is just any wire spliced on to the alternator wire that is ran the the junction block.
It’s a short piece of wire encased in a nonconductive enclosure.
The short piece of wire is a smaller size therefore will melt first thereby saving the harness from melting.
Because you need the junction block you should get one from Pocket in post #5.
The inline fuse i should go buy a bayonet fuse holder and run the wire thru it then to the junction block?
But which wire/where is the the wire that needs this inline fuse supose to come from?
Hopefully someone will have time to take and post a photo of the area.
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Happy Racing!
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How Come I Drive 400 Miles Most Weekends And Windup Where I Started?
.
07-14-2010, 06:38 PM
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Car: 92 Camaro RS, 04 Dodge RAM
Engine: 305 TPI / Hemi 5.7L
Transmission: 5 speed / 4x4 auto
Re: Master Of Disaster
here is a photo of a removable fuse link. I will send a photo of the other white 1 inch long in-line cylinder type when I can get to one.
07-15-2010, 10:38 AM
#11
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Car: 1991 Camaro RS
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Axle/Gears: 2.73:1
07-17-2010, 02:55 AM
#12
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Car: 82 Camaro Z28, 88 IROC-Z
Engine: 5.0L TBI., 5.7TPI
Transmission: Auto TH200C, 700R4
Axle/Gears: 3.23 posi, ones that rotate!
Re: Electrical Disaster
See this thread for a photo of the in line fuse for the under hood lamp in an 82 Camaro. The in line fuse will look almost the same no matter what year your car is.
The picture is in Message #8
https://www.thirdgen.org/forums/elec...nder-hood.html
The picture is in Message #8
https://www.thirdgen.org/forums/elec...nder-hood.html
Last edited by 82CrossFire Z28; 07-17-2010 at 02:55 AM. Reason: Added link to thread
07-17-2010, 12:35 PM
#13
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Car: 1991 Camaro RS
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Axle/Gears: 2.73:1
Re: Electrical Disaster
is that all the inline fuse that goes to the Junction block is for? The Underhood light?
07-18-2010, 02:05 AM
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Car: 82 Camaro Z28, 88 IROC-Z
Engine: 5.0L TBI., 5.7TPI
Transmission: Auto TH200C, 700R4
Axle/Gears: 3.23 posi, ones that rotate!
Re: Electrical Disaster
Best way to find the answer to that question is to physically trace the circuit. In my 82 there are two in line fuses, one from the battery to the ECM and the other is from a tap in the blower motor high speed circuit to the Under hood lamp.
I don't have a 91 so I cannot confirm that. However if there is an inline fuse, it usually serves a load that is put on the car as an option. Then GM could just add the circuit and power it from an availabe power tap. The in line fuse just protects the circuit it is in. The point of the power tap usually has an amacity rating greater that the wire to the option add on can carry, so they put a fuse in line to protect it.
I don't have a 91 so I cannot confirm that. However if there is an inline fuse, it usually serves a load that is put on the car as an option. Then GM could just add the circuit and power it from an availabe power tap. The in line fuse just protects the circuit it is in. The point of the power tap usually has an amacity rating greater that the wire to the option add on can carry, so they put a fuse in line to protect it.
07-20-2010, 08:33 PM
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Car: 1991 Camaro RS
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Re: Electrical Disaster
ok i think i understand more on what to do now,
Just waiting on Pocket to send me my Junction Block.
Where can i pick up a Bayonet fuse holder? Autozone?
Just waiting on Pocket to send me my Junction Block.
Where can i pick up a Bayonet fuse holder? Autozone?
07-20-2010, 10:23 PM
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Car: 82 Camaro Z28, 88 IROC-Z
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Transmission: Auto TH200C, 700R4
Axle/Gears: 3.23 posi, ones that rotate!
Re: Electrical Disaster
Yes, any of the Auto Parts stores will have the fuse holder and fuses in the electrical parts section. Note that the fuse holder usually comes in a blister pack and only has a pigtail of 3"-6" on the ends of the fuse holder. You will need to get a few weatherproof connections to make up the connections, likely some wire to connect to both the junction box and the light and a ring terminal to connect the wire to the junction box. The ring terminals are usually a compression type, you put the bare wire in the compression tube, and compress it with a special tool. The tool will cost in the range of $15. - $20., and it may be a bit less. make sure the hole in the ring terminal is big enough to fix on the junction box
07-21-2010, 03:56 AM
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Re: Electrical Disaster
The ring terminals are usually a compression type, you put the bare wire in the compression tube, and compress it with a special tool. The tool will cost in the range of $15. - $20., and it may be a bit less. make sure the hole in the ring terminal is big enough to fix on the junction box
07-22-2010, 09:33 PM
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Re: Electrical Disaster
Ok just got my Junction Block in the mail, Thank you Pocket.
And went to start connecting all i could.
The wire with the yellow circle on it is my alternator wire, used a fuseable link wire on it.
There was a hotwire (red circle )that ran deeper into my engine bay, since it wasnt my battery wire or my alternator assumed it was the one that needed the Inline fuse. Its looks a little off from what i thought it would be. But i also have a differnent wire which i believe to be the right one.
Then theres my battery wire (light blue wire)
And im not quite sure what the (pink) circled wire goes to anymore off the top of my head. But theres also my fan wire which isnt connected yet.
Did all this and went to start my car, theres power it just wouldn't crank on.
And went to start connecting all i could.
The wire with the yellow circle on it is my alternator wire, used a fuseable link wire on it.
There was a hotwire (red circle )that ran deeper into my engine bay, since it wasnt my battery wire or my alternator assumed it was the one that needed the Inline fuse. Its looks a little off from what i thought it would be. But i also have a differnent wire which i believe to be the right one.
Then theres my battery wire (light blue wire)
And im not quite sure what the (pink) circled wire goes to anymore off the top of my head. But theres also my fan wire which isnt connected yet.
Did all this and went to start my car, theres power it just wouldn't crank on.
07-23-2010, 06:22 AM
#19
07-23-2010, 08:55 AM
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Re: Electrical Disaster
Umm im planning on checking for the 12v today.
Im just hoping I didnt let my battery charge up enough is why it didnt turnover.
How would i check if my fuel pump primed?
Im just hoping I didnt let my battery charge up enough is why it didnt turnover.
How would i check if my fuel pump primed?
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