What would cause the tail lights and headlights to blink off and on sporatically on a Ford truck?

Why would your 1999 Geo Tracker head lights and dash lights blink?

On a 1999 GEO Tracker, a bad fuse can cause the headlights and dash lights to blink. A bad voltage regulator or alternator can also cause lights to blink and flicker.

Why would your headlights and dash lights blink on 1999 Geo Tracker?

Blinking lights on dash and exterior lights may indicate a bad ground wire or a faulty headlight switch. Both would cause those problems.

What would cause your brake lights to not come on with the headlights on If the headlights are off the brake lights are fine?

Possible ground issue at the taillights.

Why would the headlights of a 1988 Honda LXI be weak on dim and the bright lights only work on the right side?

A bad ground wire will cause dim headlights, or will cause lights not to work.

Why do 1995 jeep wrangler headlights blink off and on while on high beam?

A loose or corroded ground wire can cause your 1995 Jeep headlights to blink on and off. Make sure the ground wire is tight and free of corrosion.

What would cause the headlights tail lights interior lights to stop working on a 86 caprice?

probably the fuse is blown.

Why does my 99 escort zx2 blinkers blink to fast?

Check all of your blinker lights. There are two in each tail light, one in each center signal, and one at the corner of each headlight, a total of 8 lights should blink when you have the flashers on. If a bulb is burnt out, it will increase the blink rate. Also, installing LED's in the tail lights will cause the blink rate to increase.

What would cause your turn signal lights and your stereo lights to blink in sequence and why when the car is off and the break is pushed the dash lights come on?

Most likely poor wiring.

What would cause the headlights radio and dome lights to quit when headlights are turned on in a 1996 crown vic?

I would replace the headlight switch as Ford has had their share of these problems.

What will cause your running lights on a 98 gmc sierra to work but your dim headlights not work?

If by "dim headlights" you mean low-beams... the bulbs are bad and must be replaced.

Would a faulty dimmer combo switch cause the headlights to stay on without the vehicle running and the switch turned in the off position on a 1998 Olds Intrigue?

yes it will also cause them to blink off & on and

What would cause your interior lights on your 92 crown vic to constantly blink when the car is off?

You will have to check all the door sensors.

What will cause a ford f150 not to have any power no headlights no dash lights like i don't have no battery or either my starter is bad but its not what can cause this to happen?

If you have no battery then you have no power.

Why are my brake lights out but my headlights and blinker work?

Nonfunctional Brake Lights One possible cause of this issue is that the brake light switch is not adjusted properly, or the switch could be defective.

What could cause the brake-lights on a 1990 Volvo to work with the headlights off but not to work when the headlights are turned on?

They are either the wrong bulbs or one of the filaments is burned out. The bulbs should have two filaments. One is illuminated when the lights are on. The other is brighter when the brakes are used.

What would cause the headlights and the instrument panel lights not to work at the same time on a 1988 Chevy S10?

Faulty ground to the dash.

When the headlights are on there are no taillights what would cause this?

sometimes the head lights and tail lights may be fused separately,check your fuses.you could have a bad ground.thats just two places to start.

A right-turn signal causes the emergency lights to flash when the headlights are turned on. What is the cause of this problem?

A mis-wiring or short circuit somewhere between the controls, fusebox and lights.

What would be the cause of your dashboard lights not working at night?

Some cars have a knob for the headlights. If this knob is turned left or right when pulled out, it changes the brightness of the dashboard lights from off to full brightness.

What would cause your headlights and dash lights to dim or shut down while driving my 2006 F150 Supercrew?

your alternator is going bad

What are the small round lights called under the headlights for a 2003 mercury mountaineer?

Fog lights. Headlights and hi beams can make foggy conditions at night much worse because their light tend to illuminate the fog directly in front of your vehicle. Because Fog lights are much lower on the front of your vehicle don't cause this problem and you can see a bit futher. the fog lights

What would cause fog lights not to work on a 2001 Audi A4 2.8 Quattro?

Headlights need to be on for starters. Blown bulb, relay, or switch.

1985 camaro and while driving headlights radiointerior lights horn all went out what would cause this?

Blown fuse and/or damaged wiring loom.

What would cause both the daytime running lights and headlights not to work in Suzuki Forenza?

i think, depending on the year, that problem is caused by a factory defect.

What would cause the interior gauge lights and informantion panel lights as well as the compass lights to go off when the headlights are turned on in a 97 Explorer?

First thing you want to check is the dimmer switch to see if it is turned all the way down.

What could cause the dim lights not to work. Brights are working and driving lights are working in a 94 grand prix Is there a dim light fuse?

The dim lights on a 1994 Grand Prix could go out when the headlamp switch is on if there is a short in the wiring for the headlights. There could also be a problem with the bulbs themselves if they were touched during installation. The oils in the fingers can short out new headlights.

If the highbeam headlights aren't work on a used 2001 Nissan Pathfinder USA what do i have to do?

Change your dimmer switch, it went out.the dimmer switch will allow your lights to work but cause problems with your high beam,also can cause your parking lights to short out. Change it asap

What would cause a 02 Chevy silverado's interior lights to not come on when doors open but the lights can be turned on manually?

Press dome override button 3 or 4 times till you here a beep to put headlights and interior lights back on auto

What is the problem when head lights are on and the tail lights dont work but the brake lights work?

If the headlights are on and brake lights work but not the tail lights, it is possible there is a short in the electrical wires. Another cause for this could be that the tail light bulbs are burned out. Most vehicles have more than one bulb inside the tail lights to control different lights at the same time.

How do you fix brake lights that work when the headlights are off but 2 of the 3 dont work when the head lights are on?

check the bulbs themselves they sometimes short out internaly & cause feedback also check sidemarker lights I have changed all bulbs and fuses! Wiring problem???

You are having problems with your 97 Nissan Altima headlights the headlight sockets seem to be destoryed and you have no lights What is your problem here?

they were destoryed cause they saw u face thays how

What can cause the low beam headlights and the daytime runing lights not to work on my 2003 Chevy cavalier?

i was wondering whether the switch at the parking brake could affect this problem.

What would cause the headlights and interior lights to fade on your Chevy Venture?

If the engine isn't running, the battery is low. If the engine is running, the alternator probably has a problem. If you are wearing dark sunglasses, remove them and the lights will get brighter. good luck!

Do you use 150 muscls when you blink?

yes cause your eyes have muscles in them so u can blink

What would cause retractable headlights on 89 Accord to open and close on their own even while car and lights are turned off?

Theres a switch 2 buttons to the left of the defroster switch. That switch is to raise and lower you head lights without turning them on so you can change the headlights. The switch could have a short in it causing it to act like that.

What would cause brake lights to work normally without headlights but stay on constantly when headlights are on?

they don't Dual element bulbs You may be referring to a dual-element bulb ie. bulb #1157. When the headlights are turned on, the taillight element comes on with the brakelight element working regardless of the lights being on or off. Of course this applies only to certain make and models. Some have separate bulbs, but I don't think this is what you were referring to...

Why dont your high beams turn on but your low beams both work on your 2000 ford expedition Is there a fuse for it?

It sounds like the low beam/high beam switch is bad. Fuses are not the problem since they are built into the headlight switch and would cause headlights to blink or not come on for both high and low beam headlights.

What would cause the headlights and instrument panel to short or intermittently come on and off as if there was a short on a 2002 Pontiac Grand Prix?

When i was trying to disable my DRL's (Daytime Running Lights) i pulled the fuse for them and my headlights and instrument lights were flashing intermittently. Check the fuse panel in the glove box and look for the DRL fuse. Check if its blown. Hope this helps!!!

Why do your headlights on your 92 crown Victoria flash while driving?

Headlights have a thermal circuit breaker. A short to the headlight (positive to ground) will cause the breaker to trip. The breaker cools and the lights come back on till the breaker heats up. Find the short and fix it.

What would cause brake lights to come on when you turn on headlights on a 1990 firebird but work normal when headlights are off?

I might start by checking the ground wire of the taillight assembly. Make sure there isn't any rust that is preventing a good electrical connection to the chassis ground.

What would cause the chime to go off when you turn on the headlights in a 1993 Thunderbird LX?

its the alarm telling you your lights are on this happens when you open your door so your door may not be closeing right

What would cause the chime to stay on when the headlights are on on a 1993 Thunderbird LX?

the chime would stay on if the keys are in the ignition (but the car turned off) and if the door is ajar to warn that the lights are still on

What would cause the headlight switch on an 1989 Mercury Grand Marquis to keep going out where as the headlights come on but the tail and dash lights don't and the fuse is good?

it's your headlight switch

What would cause low beam head light plug to get hot and melt on 02 trail Blazer Standard headlights. And how can I correct the problem?

Trailblazer wiring harness for the headlights is a common failure in the early years. HID lights will also cause the same problems if the wiring harness plugs are weak. www.trailvoy.com for all the answers on these trucks!

Your tail lights wont work when your headlights are on The brake lights dont work at all Fuses are fine Headlight switch is good What is wrong with your tail lights and brake lights?

I suspect either a faulty ground circuit, or a much easier fix, faulty bulb/bulbs. You might be surprised the havoc a grounded out bulb will cause an electrical system.

What would cause the lights on the AC and interior ventilation buttons to blink every time the car is turned on It goes off after about 15 minutes its a 1999 Town and Country Chrysler?

err....American workmanship ?