Skip the auto shop - Our mechanics make house calls

Q: in my 94 f150 my tail lights and dash lights dont work when the headlight knob is pulled all the way out

asked by on

when my headlight knob is pulled all the way out the tail and dash lights dont work. if i push the knob in a little they come on but after driving a while they go out again and even make the headlights flicker.

My car has 248000 miles.
My car has an automatic transmission.

A: Hello...from what you are describing, it so...

Hello...from what you are describing, it sounds like the contacts in the switch are worn out. The fact that you can make the circuit, and then lights the lights do work, by simply manipulating the switch means the rest of the circuit is OK. An Auto Electric Specialist from YourMechanic could replace the switch on your truck during a mobile visit if you desire. Simply contact us for details and to schedule.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car dies after about 30 minutes of driving

The ignition module failing after getting hot is the most likely failed part causing the stall. There can also be a problem with the fuel pump or sensors. I recommend seeking a certified mechanic, like one from YourMechanic, to come...

Q: How do I use the steering wheel controls?

For your convenience and safety when driving, your truck is equipped with Steering Wheel controls. These controls allow you to operate several functions of your vehicle without taking your eyes off the road. To use the Steering Wheel controls. ...

Q: Automatic window having trouble rolling up

Hi. The window glass is attached to the window regulator and motor assembly through a mechanical connection which may be high strength glue or bolts to keep them together. The regulator assembly moves the window up and down along the...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.