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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3
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0answers
9 views

Intermittant starting problem

1967 Camaro SS 350 with powerglide trans. sometimes will not start. No click, no dimming of lights when key is turned, nothing happens. It will do this maybe one time out of 15 or 20 starting ...
3
votes
1answer
8 views

Hydraulic pump receiving power but not running

I have a Mk1 Golf Cabriolet with an hydraulic roof. Today I went for a drive and whilst the roof lowered as normal, I could not raise it again. I checked the fluid levels and they're fine. There is ...
4
votes
0answers
61 views

Starting a diesel tractor

I have a diesel tractor with a generator. After sitting for a long period the battery was low so I used a portable jumper battery but mistakenly hooked up the cables in reverse. This caused smoke to ...
5
votes
6answers
29k views

Keeping radio/stereo unit powered to save pre-set preferences?

In my previous cars I could save certain radio stations, volume levels, etc. on my stereo and they would stay saved (unless the battery went dead). I'm using the same stereo head unit in my latest ...
2
votes
1answer
15 views

2002 Honda Civic over heating fan does not comes on

I need some help. My girlfriend has a 2002 Honda Civic that keeps overheating. The fan doesn't turn on. We tested both fans and they work properly. We changed the thermostat, the cooling fan switch ...
4
votes
2answers
110 views

High and low beams on headlight

I have a 2000 Jeep Wrangler TJ and the high beams work but the low beams don't. I replaced one of the relays under the hood and the high beams started working but the low beams still don't work. What ...
3
votes
4answers
52 views

Ideas for rewiring headlights – convert from halogen with DRL to HID + LED DRL

I need some ideas. My 2009 Ford F150 pickup uses the same wire for daytime running lights (DRL) and "full" headlights. The stock setup was halogen bulbs with full brightness receiving 12 V and the DRL ...
6
votes
1answer
178 views

Does a constant blown fuse always indicate a short?

My wife was driving our 96 Ford Windstar recently and she said right after she hit a bump in the road the ac stopped working and the instrument panel lights went out. I found the fuse from the wiring ...
2
votes
1answer
30 views

Will new 100 watt headlights be too much on battery?

I want to install these new powerful headlights but they use around 100 watts. I have a 12v 45Ah battery which gives me around 540wh. Now I know that's not even half but when you factor in all the ...
7
votes
0answers
22 views

Coolant Level Sensor Connector Replacement

I'm looking for a replacement male connector to fit this coolant level sensor from a 1989 VW Jetta. Finding replacement sensors is straightforward, but what does one do when repairing a missing ...
10
votes
3answers
144 views

350z cranks won't start

2003 350z cranks but won't start VQ35DE Here is my short history: Flywheel and clutch installed 1 month ago =Car worked fine +Cranksensor was added =Car worked fine -Car started to shut off while ...
3
votes
2answers
23 views

Yamaha Gladiator SS 125 model motorcycle engine problem

I have Yamaha Gladiator SS 125 model motorcycle. After repairing the engine there has been one problem in my engine. It is that the mobil from the engine flows towards the air filter and then the same ...
7
votes
1answer
110 views

Battery tender vs trickle charger

I understand battery tenders are used to keep batteries charged for long term storage, and trickle chargers are.... also used to charge batteries? What are the differences between these two devices, ...
4
votes
1answer
29 views

Is the diagnosis from a battery/starter/alternator tester meaningful?

At many auto parts stores they will test - often for free - a vehicle's electrical system by attaching a device to the positive and negative terminals of the battery. That's all they do. Then you ...
12
votes
2answers
212 views

Car stalls/dies suddenly while driving and is not starting again

I own a Indian Make TATA INDICA Ev2 (CR4) Turbo Engine car. I did rebore recently and the mileage was 130,000 KMs. After rebore first service of 3000 km is successfully completed and now I'm facing a ...
9
votes
3answers
621 views

Why do attempts to charge a flat car battery with an electronic battery pack give results as if there's a short circuit?

I'm not having a good weekend - car wouldn't start, even when jump started using a conveniently placed 12v generator battery (almost identical to this question, I suspect dodgy cabling to the starter)....
5
votes
0answers
26 views

How to diagnose this electronic failure

My car (1991 citroen BX 1.4) has been giving me alternator problems since I got it, the alternator failure came on every now and then and dimmed or dissapeared when I revved the engine, my first move ...
4
votes
1answer
54 views

1999 Jeep Cherokee 4.0L electrical problems

I am new to this and in need of some advice. I just purchased a 1999 Jeep Cherokee 4.0L, with 211,000 miles and have some electrical problems. I noticed that one of the two green wires on the back ...
3
votes
1answer
20 views

Electrical reverse lights stay on

We recently purchased a restored 1971 chevelle ss. They did an excellent job. I just noticed that the reverse lights are always on and assume it something with the switch. Where might I look for the ...
7
votes
4answers
5k views

Should only the left “Rear Fog Light” actually light up in a pair?

On a 2003 Saab 9-5 Aero, only the left rear fog light lights up. The right side has a bulb but when I switch the bulbs, the left still is the only side that lights up. I thought it might be a wiring ...
5
votes
2answers
38 views

04 Mercury Montery stalling while driving

While driving on the highway my van stalled. Once on the side of the road, I tried to restart and no joy. All indicators and lights came on but when I turned the key nothing happened. I jiggled he ...
8
votes
1answer
306 views

battery tender keeps charging

Results for: so I have a motorcycle and use the Optimate1 battery tender. One day while using the tender I left and came back 6 hours later to find the Optimate still charging my battery. The battery ...
8
votes
4answers
734 views

How can a fuse drain a car battery?

My car battery drained itself after a week of not being used. I was researching how to identify the cause, and saw a comment under this article saying: What if I am not detecting a reading but the ...
5
votes
1answer
23 views

Trailer socket problems

I have a tow bar and a seven pin plug to operate the lights, fitted on my car. I recently took my boat for repair and when they brought it out of the workshop they dropped it from a forklift truck ...
8
votes
2answers
1k views

What is this? maybe a sensor?

I discovered this loose tape connector while fixing a coolant hose by the heater matrix. There are two more of these attached to the very bottom of the windscreen glass on each end, the loose one ...
2
votes
0answers
12 views

97 Ford Ranger occasionally won't start

It just recently began not starting every once in a while. Not a click, nothing. If I turn the key backwards the radio comes on and I can turn the lights on. Then after a few tries it starts up and ...
5
votes
3answers
34 views

Is my battery draining while car is off?

How much current in amperes is flowing while a car is completely turned off? How long can it sit before battery is drained enough to be a problem?
0
votes
2answers
30 views

2000 Ford Focus will not start

After turning the ignition the car will not make a sound. The radio works, and all the lights work except the headlights. What could be the problem?
4
votes
0answers
27 views

Toyota Celica ST185 problem, doesn't start

Hello i have a problem i own a Toyota Celica ST185 Carlos Sainz Limited Edition. (btw. English is not my national language so sorry for eventual errors). The problem is that car has problems with ...
1
vote
1answer
29 views

What voltage does the ECU need?

I am tracing the operation of the ECU. I want to supply it with current but what is the ECU voltage input that I should supply?
9
votes
6answers
2k views

Fuse box above battery melting

I have a 2001 VW Beetle which has a nasty habit of melting the above battery high voltage fuse box. I've replaced it three times already and replaced the alternator as well, but I'm at a complete loss ...
6
votes
2answers
45 views

Does Coil rewinding have a negative impact with the existing system?

I have a question towards the rewinding of a coil. Here is the tech spec of the bike:- Battery : 9 Ah, 12 V Generator : 12V, 100 W Fuse: 12V 10A My bike comes with an electrical spec of DC (...
1
vote
0answers
41 views

I cannot identify this 2004 Volvo S60 part

I'm selling my car and currently it sits and seeing as I'm not driving it every day I check on it every so often. When I checked today there was a small part that is connected to a tube leading into ...
9
votes
2answers
65 views

No power but battery, alternator, and connection are good

This involves a company truck, 08 Chevy Silverado. I am not a mechanic or DIY nor do I play one on TV. The problem I am having is that every 2 or 3 months this truck will not start and completely ...
13
votes
1answer
129 views

How to determine exactly what's wrong with my alternator?

My 98 Mazda 626 GF 2L uses an 80 amp fp34 A2TB0191 alternator with an internal voltage regulator. I did a little test where it I turned on the bright lights, AC, radio, rear defogger and opened the ...
1
vote
0answers
18 views

Installing a 3rd party radio in a VW Polo

I am finding it hard to understand why I need run a 12v wire as well as use a Quadlock to ISO converter. The current VW radio clearly gets power from its connector and is able to tell if the engine ...
8
votes
4answers
3k views

How to amplify car speakers without stereo?

I have a 1980 VW Dasher with its original speakers but no radio. It has an unusual (erroneous?) electrical configuration where most accessories (e.g. lights, cabin fan, etc) still run even with the ...
1
vote
1answer
27 views

2002 Toyota Tacoma multiple issues?

2002 Toyota Tacoma low beams quit working, door locks won't work, no radio, no cruise control what could be the problem? Have checked the fuses and there doesn't appear to be a problem with them. ...
5
votes
1answer
71 views

I hate thieves - Ideas on DIY deterrents

My girlfriends car, along with another one in the same parking lot were broken into last night. They took her radio surprisingly without damaging the dash. From the neighbor's car they stole ID's and ...
1
vote
1answer
33 views

How to repair and clean alternator [duplicate]

My car won't start and it's because power steering pump slings oil on it. I was told that I had to clean it to be able to have it charge. I need to know if I clean my alternator from all that sludge ...
6
votes
3answers
77 views

VW Golf electrics problem with door closed

I have a VW Golf 1.9 TDi 55 plate MK VI. When the door is CLOSED (with the ignition on) : The mirrors do not adjust, the windows do not open, the fuel flap does not open and the child door lock does ...
2
votes
1answer
28 views

Draw more current than its original ouput

I am have a battery capacity of 9 Amps 12 V. Factory electrical system of the bike is DC (horn, indicator, etc.) + AC (head light). Now I have changed the remaining AC to DC. (light system with ...
3
votes
1answer
19 views

Terracan 2.9 crdi 2004 won't start

Wile driving i activated the high beam (headlights) and the rpm-meter started flickering for a moment and then dropped down to 0. Stopped the car and shut of the engine for 10 min for other reasons. ...
0
votes
0answers
13 views

tap dash start ford falcon el 4.0 95

I tap the left side of my steering wheel lightly and turn the ignition to start my car what can I do
3
votes
1answer
25 views

2001 Nissan Altima won't start

We got this car a month back, and haven't driven it much because we needed to notarize it. So it's been sitting in our back yard for a month. Yesterday we tried to start it up, but it is making a ...
8
votes
1answer
11k views

Why would my electrical systems cut out when I brake?

So I told this little story to the dealership service department, and they were baffled. Never heard of anything like it in ten years, said they'd have to examine it very closely. Here's what ...
6
votes
1answer
2k views

My motorcycle won't start at all why?

Something is draining my battery and my bike won't start. If it's the relays which one is it? My motorcycle doesn't crank at all. it makes a buzzy noise when I press the start button. It sounds like ...
4
votes
2answers
19 views

How to diagnose if sporadic turn signal functioning is signal flasher or signal combo switch?

Symptom: When activated by the turn signal combo switch, turn signal goes on for about 5-10 seconds, and then turns itself off. Turn signal combo switch remains in the on position, but the turn ...
-1
votes
0answers
28 views

Zontes please help lol

Hi guys just wondering if you can help when I put my key it none of the electrics come on no lights no nothing but it kick starts first time and everything works lights and all just wondering is it ...
4
votes
1answer
54 views

A fuse slot has disappeared

My 2003 Opel Agila has recently had a catastrophic electrical problem, and my electric mirrors do not work anymore. The recovery guy pulled out and replaced a few fuses, and I drove home all fine. ...