Skip the auto shop - Our mechanics make house calls

Q: Loud buzzing before the engine cranks

asked by on

The car couldn't start. Before this happened, the cranking was weak. The battery works well and has lots of power. The car can be jump-started with no issues. I had the terminals cleaned as well as the cable ends that had some corrosion on them. I also tightened ends to terminals. Now, when I put the key in the ignition, before the engine starts cranking, I can't hear the clicking sounds anymore. Now, it's buzzing very loudly. What should I do?

A: This sounds like the starter solenoid - the...

This sounds like the starter solenoid - the part of the starter assembly which acts as a high-current power relay for the starter motor - has worn or burned contacts. This makes it tougher to get adequate power to the starter motor itself. A professional mechanic, like one from YourMechanic, can confirm this diagnosis, and replace the starter assembly if needed.

Was this answer helpful?
Recommended services
Get a Quote

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: Down one chamber

I owned a 300D and 300SD, both 1983's. You can have a bad glow plug or two even if the glow plug light is lighting when you turn the key on. The easiest way to determine if a glow plug...

Q: Engine, power steering, and brakes shut off

Given you had a "sudden" failure, you might check the crank position sensor first. This component instructs the ignition module when to fire the spark plugs. If the crank position sensor is OK, work your way up the electrical path....

Q: With car off, exterior and interior lights start flashing

It sounds like somehow the anti theft system was activated and drained the battery. Try locking all of the doors from the inside and close them. Then lock, unlock, lock and unlock the doors to see if the problem persists....

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...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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.