Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

no power

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Old Aug 20, 2009 | 11:00 PM
  #1  
lilnebel's Avatar
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Joined: Jun 2006
Posts: 52
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From: Waukesha, WI
Car: 1991 Camaro Z28
Engine: 5.0 V8 TPI
Transmission: 700R4
no power

The problem is i have no power coming into the car, no lights windows locks ect... its in a 91 camaro with a 5.0 im lost i recently had the whole wiring harness out and i just want to know how the fuse block gets power. does it come through the connector on the driverside firewall? any help is greatly appreciated. i do have power at the fan realy and fuel relay.
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Old Aug 21, 2009 | 04:58 AM
  #2  
z28 TPI's Avatar
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Joined: Dec 2006
Posts: 128
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From: South Gate, Ca
Car: '85 Camaro Z28, '90 300zx
Engine: 350 4 bolt main TPI
Transmission: 700 r4 automatic
Axle/Gears: ? not there yet, i know its stock
Re: no power

Can you start the car? I know its a stupid question but, is the battery connected and does it have power? The connection on the drivers side firewall is the connection for the fuse block and for the headlights, but the headlights get there power from the switch and the fuse block. There should be a thick harness coming out of the driverside going under the brake master cylinder and over the block that connects to a/c, cruise control, smog canister, windshield washer, and there are I think 2 connections for power right around the distributor area look for 10-12 gauge wires red and blue i think in color they would be by themselves.
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Old Aug 21, 2009 | 08:43 AM
  #3  
BigBadLou's Avatar
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Car: '91 Z28 convertible
Engine: TPI
Transmission: T5
Axle/Gears: 3.27 posi disc
Re: no power

Check the wires on the starter solenoid. The main thick positive cable comes from the battery and attaches to the starter solenoid and then a few smaller (but still thick) orange wires piggyback off of the same solenoid post. If those are not connected or are on the wrong post, you won't have power in the car.
Also, these wires have fusible links on them. If they are broken/burned out, that would be a break in the circuit and would also cause a no-power situation.

Let us know what you find.
Lou
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Old Aug 23, 2009 | 12:08 AM
  #4  
lilnebel's Avatar
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Joined: Jun 2006
Posts: 52
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From: Waukesha, WI
Car: 1991 Camaro Z28
Engine: 5.0 V8 TPI
Transmission: 700R4
Re: no power

so i figured it out the end of the wire coming from the battery going to the starter was really bad so i crimped a new terminal on and now evey things works just fine. thanks for the quick responses i really appreciate it.

Ryan
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Old Aug 23, 2009 | 10:47 AM
  #5  
BigBadLou's Avatar
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Joined: Jul 2004
Posts: 2,989
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Car: '91 Z28 convertible
Engine: TPI
Transmission: T5
Axle/Gears: 3.27 posi disc
Re: no power

Glad you found it and fixed it already.
And thanks for posting the conclusion, it helps others.

Lou
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