Skip the auto shop - Our mechanics make house calls

Q: Would a faulty alternator cause smoking from under the hood on the passenger side?

asked by on

I think my alternator needs replacing.

My car has 117000 miles.
My car has an automatic transmission.

If your alternator is failing, this can definitely cause it to smoke depending on how badly it has failed. When an alternator fails, the bearings inside usually have failed to a point that causes them to whine severely and, depending on how badly they have failed, they may also smoke due to the excessive friction they create. I would recommend having an expert from YourMechanic come to your location to diagnose and replace your alternator.

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!
  • Home
  • Questions
  • Would a faulty alternator cause smoking from under the hood on the passenger side?

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: Anti theft module, ECU and ignition switch 2004 Mitsubishi Endeavor

Hi there - this may be more a matter of the equipment availability to "program" anti-theft components. Most mechanics do not have access to anti-theft/security components in the vehicle. These are only available to dealers licensed by that manufacturer. This...

Q: How to fix my draining battery

Hi there. There are a few items that you might want to have checked out that may be causing the battery to drain prematurely. The first is the alternator. The alternator is designed to power the vehicle's components once the...

Q: Car alarm goes off for no good reason. At times I have seen the hood ajar error.

Hi, thanks for writing in. Your car is equipped with an anti-theft system which functions based upon the use of sensors that detect the car's points of entry (i.e. doors, trunk, hood, etc). When the anti-theft system is set (usually...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...