Tip & How-To about Chevrolet Caprice

Car amp wireing pwr cable tips.

Lets start first with running pwr wire. Keep all wires as short as possible to cut down on resistance to the flow of power through the strands. Run the pwr. down the same side as the battery. Drill a hole in the firewall, being careful not to hit any wires or a/c pipes. Insert a rubber grommet into the hole to keep from shorting out wire against chassis. Hide wire in a protected area under carpet, all the way back to ware amp is to be mounted. leave extrea lay and come baec to it.

Now the ground or B - . This is ware most people mess up. Most shops woll screw the GND terminal to metal in the trunk with a 2 foot wire. Wrong.... KEEP THIS ONE AS SHORT AS POSSEBLE. I use a Seat belt bolt and 0awg here. Take seatbelt, or another bolt that is directly connected to frame (unibody in newer cars), and wire brush all the paint off until you see shiny bare metal, bolt back on. when wiering to amp try to keep under 8 -10 " .

Go back to PWR wire, cut off extrea leaving about 10 -12" of slack after hiding wires. connect to amp. Now go to PWR cable under hood. Zip tie wire to secure it from grounding out on manifolds or anything else. you have to install a fuse or circuit breaker as close to the battery as possible not being further than 10" from battery. this ensures if PWR wire shorts out it will blow fusw ot trip breaker rather than catch your wire and vehicle on fire. Remote wire goes to B+ swiched, like blue wire on head unit or an accessory fuse. run RCA's down other side of vehicle to reduec noise. Install fuse. there you are. KEEP ALL WIRES AS SHORT AS POSSIBLE.

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Negitave Car Battery wire


Hi Richard, I'm glad to help! The negative battery cable will not short out because it is a ground wire, but with that said it can build up resistance from corrosion and cause problem's because of the high resistance. The easiest way to replace it is to run it over the existing neg cable and wrap it to that cable and just cut off the ends of the bad cable. Hope this helps and have an awesome day Richard.

May 04, 2014 | Dodge Grand Caravan Cars & Trucks

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1992 Izusu Trooper 3.2l all relays click but starter does not


The symptoms you describe suggest a problem which is generic, or universal, with all battery/electrical systems.
NO clicks would suggest that no power, or electricity, was "getting through to the solenoid, BUT the clicks confirm that the circuit is complete [or "closed"]. This is a good sign!
Any time any relay "clicks," indicates that there is NOT ENOUGH "power"[Amps] "getting to" the relay. A relay requires a certain amount of power [Amps] in order for it's coil to pull the armature to the "closed" position [against the pull of a strong retracting spring].
Generally this low power condition is a result of a "low" [discharged] battry, However, in this case, your question suggests the installation of a "new" battery [and I'm assuming it was fully charged] which further suggests there was adequate power available.
The next question you may ask is what could cause this, when the battery obviously has enough power available?
The answer is "RESISTANCE" somewhere in the circuit between the "hot" battery and the solenoid coil ground.
There can be many causes for this, and I will discuss only a couple, as examples which are representative of all those possible causes.
1] The most common cause of high resistance in electrical circuits, is CORROSION at some connection. The most well known example [example only, not applicable in your problem] of this is the corrosion build up between the battery terminals and the battery cable connector terminals.
The same condition can and does occur in any type of electrical connection, and at any connection point from one end to the other of any circuit.
The circuit which allows you to control [operate] the solenoid begins at the battery, goes to a fuse somewhere, through the "starter" terminal on the ignition switch, to the solenoid, and then to ground [back to the battery].
Corrosion build up in any connection anywhere in a circuit can act like a water faucet turned to almost closed, restricting the flow of water to only a trickle. A high resistance connection in an electrical circuit can cause a similar reduction of current [Amps] allowed to flow through that circuit.
2] Another possibility of resistance to current flow in an electrical circuit is the reduction of the size of the wire. This can occur when the wire conductor is partially "cut through."
An example of this problem is a wire conductor, made up of 10 small wires, which is capable of carrying a certain amount of current. If 5, or half, of those strands are cut through, then that conductor can only carry half of the current the total wire could. If 9 of the wires are severed, then the wire can only carry 10% of what the whole wire could carry. AND IF that single strand is cut halfway through, the only 5% of the original current can get through!
I suggest that you check all electrical connections, connectors, wire and wiring harnesses between the battery and the mounting point between the solenoid and the metal it is mounted/bolted to.
You will be looking for loose connections, evidence of corrosion, or damaged or partially severed wires. During this process, I also suggest "breaking" [disconnecting] all connections in the circuit, and while open, clean them well, including the use of a fine guage wire brush.
Make sure all connections are "squeaky" clean, like new, and you will probably cure your problem. Any severed conductors will require PROPER splicing.
I hope this adequately explains this issue, and allows you to correct your problem.

Jul 02, 2009 | 1992 Isuzu Trooper

1 Answer

I need to reset my diagnostic link connector for my 1995 Oldsmobile Aurora. But whenever I plug my tools into it the tool says that its not connected to the computer so I'm thinking there is a short or something in the wiring but I dont have a clue. Any Ideas?


No clue, either, so to start I would check the validity of the wiring from the computer to the diagnostic connector. Find a wiring diagram and get out the old trusty ohmmeter. You know where the computer and the diagnostic connector are.
Take off the negative battery cable. Pull the PCM connector off. From the wiring diagram you know what pins on the PCM connector go to the diagnostic connector. Now, one ohmmeter lead on the diag. conn. and the other meter lead on the PCM connector-turn the meter to ohms and see if very little resistance is in that wire. Resistance to current flow means very high ohms. A short is a break in the wire, and the ohmmeter will show infinite resistance. A wire still connected by two little strands with the others broken, will show very high resistance, just not infinite.
Check all the wires going to the diagnostic connector in the same way. If all wires are good, check the computer is getting fully powered. Is check engine light on with key on? Is your diagnostic tool working okay on other cars?

Sep 11, 2013 | 1995 Oldsmobile Aurora

1 Answer

03 Mini Cooper Power Steering Fan will not run


2006 mini cooper s power steering fan seezed. replaced with new fan won't run?

Mar 30, 2009 | 2006 Mini Cooper

3 Answers

2001 ford mustang no power to fuel pumps


check your fuel pump cut out switch. located in the front passenger side kick panel area in the floor board, the safety switch could need resetting

Jan 28, 2009 | 2001 Ford Mustang

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