Concerning the main electrical system of a motor vehicle or internal combustion engine. Consider using [tag:electronics] for radios and other such systems. Uses the [tag:electric-vehicle] for questions about electrical powered vehicles and their unique systems.

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2
votes
1answer
38 views

Low idle and tacho twitching after electrical cut out

The car is a 93 VW Cabriolet (Mk1 Golf/Rabbit). I was parked with the engine on lowering the hydro/electric roof when the engine and power cut out. I couldn't restart the car so checked the battery ...
5
votes
4answers
2k views

How does a lightbulb with two filaments know which one to light up?

I need to replace the taillight/brake light on my car, and it's a bulb with two filaments (known as 12V P21/5W - see pic) My car has two taillights on each side. A standard 5W bulb for the top half, ...
3
votes
1answer
66 views

Fluctuating amp meter on 1948 automobile

On an old auto 6 volt (generator/regulator) system, what causes the ammeter to fluctuate between zero and -35 amps? Seems acceptable at idle but fluctuates on the discharge side when driving. Will ...
2
votes
2answers
556 views

What's wrong if I replace a signal light bulb, but it still acts as if it's burnt out?

I hit the ditch the other day and got towed out. There was no physical damage as far as I can tell, but whenever I indicated right, it would blink fast as if a bulb was burned out. I replaced the ...
2
votes
1answer
462 views

Daughter's 2005 Nissan Sentra 1.8 SE - No Low Beams - High Beams Fine

Daughter was driving home last night from work and noticed "it was very dark" on the way. Turns out low beams won't come on at all. High beams, parking, tail, turn signal and flashers all fine... just ...
1
vote
1answer
49 views

new starter in 74 pontiac with 350 turns over and fires but won't stay running

My starter went on my 74 Pontiac with a chev 350 (Canadian). It first was not starting sporadically and I would have to crawl under and tap on it to get it going. I got a new starter and now it will ...
1
vote
1answer
66 views

Repair broken light connector on Volvo 240

So I tried to replace the broken corner light assembly on my '92 Volvo 240 last night. On the old unit, the gray connector (pictured in link) was stuck, and eventually pulled free with part of the ...
3
votes
1answer
378 views

Portable generator starter problem

The generator is King Canada Model no. KCG-6500GE, the battery is 12v and is in good condition. When I turn on the key to start it nothing happens, I do have power to the starter connection. What ...
3
votes
2answers
193 views

What are the implications of driving through flood water when I have a high air intake?

My 2003 Opel Agila 1.2 Petrol, has a high air intake. Here is the approximate location of it: [ Here is the engine bay, showing the air intake on the left. Is the height of the bottom of the ...
3
votes
1answer
112 views

Cracked & frayed wire everywhere!

I have an 84 Ranger with a 2.8L V6. This car seems to have a fair amount of electrical issues, but mostly really minor. I noticed that A LOT of the wiring harness is cracked or frayed, just because ...
2
votes
1answer
103 views

Oldsmobile Stalling at Stop

My 1999 Oldsmobile Alero has been stalling when I come to stop. This happens when I'm driving at speeds of at least 45mph and coming to a quick stop, for instance, when coming off a ramp from an ...
5
votes
1answer
93 views

Unknown red wiring harness near cooling fan area on a Ford Focus 2004

I have a 2004 Ford Focus SE DOHC. Today, I opened the hood and found an unconnected red wiring harness (shown in the picture, it's the one with a question mark pointed at). I looked around the area ...
-1
votes
1answer
33 views

Having starter issue

My starter motor is good, I can jump the solenoid and start my truck. Why isn't it working from the switch which was working before I put a new starter motor on?
2
votes
1answer
80 views

Radio stops playing when I change volume

I have bought a 2001 Chrysler Sebring LXi Sedan 4 door car. Recently the radio has started giving problems. Specifically, whenever I change the volume by turning the knob, the radio stops playing... ...
5
votes
1answer
629 views

07 Subaru Forester XT Electric window working intermittently

A few days ago my Subaru Forester's driver's window (RHD) developed this habit of not opening when I push the switch, or sometimes I push the switch, then nothing happens for a couple of seconds, then ...
2
votes
1answer
405 views

CEL Code 41 on '94 Jeep Grand Cherokee

According to this answer a CEL code of 41 means: charging system circuit not responding to control signal What are likely causes of this?
4
votes
1answer
765 views

98 jeep cherokee wont start. get one click then everything shuts down no more dash lights or nothing

replaced the starter a month or so ago and has started fine, until today.... i turn the key and all power is lost. i tried jumping it, charging the battery, hot wired the starter and still nothing.... ...
7
votes
5answers
4k views

Can hooking up jumper cables incorrectly damage the electrical system of the receiving vehicle?

Our Jeep was having problems turning over, so we called a tow truck driver. He connected the jumper cables incorrectly, starting a small fire on the battery box. After the fire was out, the Jeep no ...
2
votes
2answers
476 views

Can the Chinese EV BYD E6 charge at Tesla charging station?

I am just wondering, are there any customers of this exotic brand, especially in the US? And btw can any other EV (e.g. Nissan Leaf, Toyota RAV4 EV) charge at Tesla's fast charging stations?
4
votes
2answers
160 views

Mystery wiring harness underneath the gearshift on a 2004 Ford Focus

My Ford Focus had an evaporator core leak, so the DIY hobbyist in me took apart the instrument panel, dashboard and finally, replaced the evaporator core. I'm on my way putting parts back together. I'...
4
votes
3answers
109 views

Honda Accord 2000 V6, loses electrical although engine is still running - what could it be?

After driving about a mile with a cold engine, I lost power steering and all the dash lights came on (battery, oil, all the doors registered open, etc). I pulled off the road and turned the car off. I ...
2
votes
2answers
48 views

2006 Pontiac Solstice - Wipers turn on by themselves

Here's a new one: Three times in the past week, the wipers have randomly turned themselves on. Each time turning the switch on and back off has fixed the issue. I haven't seen anything else ...
4
votes
3answers
21k views

How do I know when a car battery was produced?

I have a hard time finding when my car battery was produced - can't find any defintive information. The battery is Bosch Silver with the following data printed: 5EN in huge letters and two rows of ...
1
vote
1answer
34 views

What is the pin layout / labels of this oil gauge?

I have a veglia oil pressure gauge from a fiat coupe 16v. On the reverse of the clock is 4 pins, the top and left ones are labeled negative and positive respectivly, but can anyone tell me what the ...
0
votes
3answers
947 views

connecting backup camera in my honda 2001

I am trying to set my back view camera in my Honda 2001. I could not figure out how to make electric configuration - I just want to avoid using tail light and my backup camera can keep running while I ...
4
votes
1answer
127 views

Second battery for Android Stereo

I have an android head unit that suffers (like most stereos) a power drop/fail on starting the car. While the unit is engineered to retain OS power for a few seconds, the dvd player has to restart, ...
6
votes
3answers
6k views

Chronic ignition problems with 1996 Suburban, replacing distributor cap makes it go away

I'm trying to diagnose an ongoing ignition problem with a 1996 Chevy Suburban. Sometimes it won't start, and the previous owner said this happens regularly, and every time the problem occurred, ...
2
votes
1answer
350 views

2006 Jeep Commander Driver's side window controls only work for rear windows

My 2006 Jeep Commander driver side power window controls will only work for the rear windows. I have checked the switches and they are in working order. The front windows and the power mirror controls ...
2
votes
1answer
42 views

'95 Honda Accord random/sudden electrical failures

I noticed a few things not working, one at a time, as I tried to use them. One, the rear defroster switch on the dassh quit. Two, the PULL feature on the wiper stick on the column for the window ...
0
votes
3answers
2k views

How to add Fog Lamps to Maruthi Suzuki Alto 800

I have a Suzuki Alto 800 lxi 2015 model and I would like to add Fog lamps for that, which is does not come with this model. But the Alto K10 has it. So I would like to modify it. Can I do that ? and ...
3
votes
2answers
929 views

Headlights won't turn on & taillights won't turn off

I have a 1998 Nissan Altima. My headlights won't turn on, but my parking lights and tail lights won't turn off unless I unhook my battery. Any ideas what the problem might be? Or a solution?
3
votes
0answers
71 views

Changing Ford e4od to 4r100

e4od is a gear driven speed sensor/ 4r100 is reading directly off tail shaft and signal is much faster causing speed to read much faster. Is there a way to put an in-line adjustable type signal ...
3
votes
3answers
196 views

My 2002 vw golf keeps dying?

Hi Just wondering if anyone can help on this subject before I give up and sell it for spares! My VW golf (2002) had battery problems where I was going out to start the car and it would attempt to ...
3
votes
1answer
267 views

VW Golf 2001 Mk4 Diesel ASR Engine Problem

I've spent a crazy amount of money on my car lately and I still have the same problem. I've replaced the: Catalyst Converter Radiator Starter Motor EGR Valve Track Rod ends & Wheel Bearings ...
3
votes
1answer
151 views

turn signal blinks wrong direction

I have a 2009 Jetta SportWagen TDI (Mk5). When I turn on my right turn signal, usually the left turn signal turns on instead. I'm pretty sure it is a problem in the lever arm. I can consciously ...
2
votes
2answers
429 views

Audi A6 2.4L 99 - randomly sets off brake warning lights, no abs, no rpm, no A/C

Randomly while driving or standing still I get a bunch of warning lights that come on, beep and blink. Sometimes it lasts a few minutes, sometimes it will stay on for a few days of driving and turning ...
5
votes
4answers
4k views

How do you test relays?

I have a Pontiac Grand Am. After getting a hose replaced, I noticed that my fans don't come on now. I checked the fuses and cooling fan #2's fuse is burnt out, which (I think) should be for AC only. ...
2
votes
1answer
4k views

2007 Jeep Commander left turn signal will not turn off

I made a left turn today and now my left turn signal will not turn off (i.e., the interior arrow is flashing and the exterior front/rear blinkers are flashing). Here is the current state of things: ...
4
votes
0answers
30 views

1998 Ford E150 Van - Implementing Power Doors and Windows

I put different doors on my ford van that have power windows and locks. My van was not equipped with these features originally. How do I get power to the doors in order to make the windows and ...
5
votes
1answer
256 views

Knock sensor ground and dieletric grease

The knock sensor for my 2001 Subaru Outback grounds through the engine block. I've seen various advice about whether to put dielectric grease on the underside (where the grounding takes place). Some ...
6
votes
2answers
1k views

Bmw E46: strange problems with automatically closing windows and broken light warning

I have had a couple of strange problems and I can't really make sense of it. When I parked the car, I locked the doors as always with the windows closed (I am absolutely sure about this; it was ...
2
votes
1answer
178 views

Which convenience features in a car affects fuel economy?

I understand that the A/C compressor runs with the engine belt, so it will always uses some HP when engaged, therefore it will have some effect on fuel consumption. What I want to know if there are ...
3
votes
1answer
47 views

2005 Suzuki Katana stalls when put in gear

I have reworked all the carborators on the motorcycle. All seemed well but once it was put in gear, it stalled. What do I need to look for?
-1
votes
2answers
28 views

Bikes power is iffy [closed]

Hi I have a 03 katana and for some reason the bike won't power on anymore...I turn the key and nothing no lights nothing. I'm not sure if it's the battery or what. What should I do to trouble shoot ...
5
votes
1answer
2k views

Should I disconnect the battery when working on my instrument cluster

I am going to be changing a few bulbs on my Opel Astra's instrument cluster. Part of the process involves disconnecting the entire cluster from the wiring harness and obviously replacing it when done. ...
2
votes
0answers
65 views

Chevy 4.8 misfiring

I drove the truck through a big puddle and it killed it. Found I had completely soaked the air cleaner and had possibly got water in the intake. I replaced the filter and took contact cleaner to all ...
5
votes
1answer
191 views

Saturn Headlight Problem

I have a 2001 Saturn SL2 that is having a problem with one of its headlights. When I turn on the headlights, frequently one is not lighting. If I go to the front and give the lens a quick knock, it ...
1
vote
1answer
23 views

Rear blinker failure on camper trailer

My right rear blinker on camper trailer does not work but every thing else does. I have a test light to test fuses and relays on truck to see if that may be an issue. It has camper tow package. Where ...
3
votes
1answer
2k views

Central Locking Help: Why are there 3 wires for each door lock?

Tl;Dr: I want my hazards to flash with the central locking. I need to wire them up together with a diode to each side (left and right). The central locking has 3 wires My questions are: Does anyone ...
3
votes
1answer
338 views

Does a brake controller need direct battery connection, or would a switched source work?

I'm installing a break controller & 7-pin receptacle for towing. The wiring diagram I am following (below) shows the 7-pin and brake controller wired directly to the battery. I want to know if I ...