Q: My passenger headlight keeps going out, then tap it and comes back on?

asked by on

My passenger headlight keeps going out then I can tap the headlight and it comes back on. I'm wondering what I can do to fix this. Thanks

My car has 178000 miles.
My car has an automatic transmission.

A: Hello. This sounds like the bulb filament i...

Hello. This sounds like the bulb filament in the glass is intermittently loose or the plug connection to the back of the bulb is loose, corroded, broken, or intermittent. If the bulbs are many years old, they have probably lost 20% of their lumen output anyway. So try replacing both headlight bulbs (they should be replaced in pairs), and while replacing them, check the plug connection for dirt, corrosion, salt, or electrical faults.

If you need new plug connector at the headlight, a new connector should be spliced in for you. Dielectric grease is sometimes recommended for the plug area to keep moisture out. Do NOT touch the bulb glass. If you leave body oil on it, the bulb could shatter in use. Also, keep bulbs away from your face as they can shatter and cause eye injury. If you want to have this taken care of for you, a certified professional from YourMechanic, can come to your car's location to replace the headlight bulbs for you.

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・Save up to 30%

Get a quote

What others are asking

Q: Looks like it will start but it doesn't

Hi, thanks for writing in. This is easily diagnosable because the fault is not intermittent. Based on the symptoms you are describing, you have either a fault in the ignition system or the fuel system. There are some simple tests...

Q: Smoke coming out of tailpipe

If the smoke is white, you're burning coolant, if the smoke is blue, you're burning oil, if the smoke is black, you're running rich (too much gas). A qualified technician, like one from YourMechanic, can help you identify the problem...

Q: low brake pedal

Hi there. If the brake master is leaking, then it needs to be replaced. You do not need to replace the brake booster unless the brake fluid has leaked into the booster. Lastly, the brake light switch should be checked...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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...