Q: High pitch whining from alternator.
Going high speeds and/or pressing on the accelerator causes the accelerator to make a high pitch whining noise. It has never done this before until continuously driving on the interstate moving at high speeds.
My car has 163000 miles.
My car has an automatic transmission.
Recommended Services
| Whining sound when car is in gear Inspection | $94.99 - $114.99 | Get a Quote |
This can come from a variety of places other than the alternator such as the transmission. Your car should be equipped with what is called a CVT (constant variable speed transmission) which is notorious for making this kind of a sound as the engine rpms are increased. Because this can come from many areas, this may be difficult without taking the vehicle for a test drive. I would recommend having an expert from YourMechanic come to your home to diagnose this whining noise and make repairs.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
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
What others are asking
Bad clutch in my truck
Hello! Thank you for writing in with this question. This generation of Tacoma has an adjustable clutch pedal assembly. As outlined in the Tacoma service manual, if the assembly is out-of-adjustment, it could cause slipping. A local mechanic (like those...
Bad experience with CVT
Lemon laws vary by state, but in general, the manufacturer has three attempts to successfully repair the original concern before Lemon proceedings can begin. In regards to notes that should be made when replacing the transmission, be sure that the...
What does the Check Fuel Cap Fill Inlet Light mean on the dash?
There are several important warning lights on the dash of your Escape. The Check Fuel Cap Inlet Light is designed to come on briefly when you crank the car. It should go out shortly afterward. If it stays on, or...
Knocking noise under hood
Without actually hearing the noise, it is difficult to determine the exact cause of your concern. It could be low oil pressure, valve adjustment, bearing failure, etc. I suggest having a certified technician, like one from YourMechanic, determine the exact...
Engines I can easily put in a 1966 mustang
Hi Griffin. Your 66 Mustang was built to handle a small block V-8 Ford. The size of the small block Ford's 289, 302 and 351 are identical. They gain cubic inches by having larger bore and stroke in the combustion...
My honda civic 2012 has check DRL system. I am wondering if it will pass emission inspection. I am in Virginia
Hi There, As you may know, the check DRL indication your vehicle is giving you means that the computer is not recognizing some part of the daytime running light function. This is related to the vehicle's automatic daytime light function...
When I brake I hear a clicking noise.
Sometimes when brakes are replaced, a piece of the sheet metal shims can be bent, leading to clicking or even screeching sounds. Or your noise may not be related to the brakes at all. If you hear the noise when...
My 2006 Chevy trailblazer has the p0014 error code. Would replacing the CMP be the definite solution?
Hi there. Sorry to hear about the kitten. First off, P0014 is the OBD-II generic code (https://www.yourmechanic.com/article/p0014-obd-ii-trouble-code-camshaft-position-b-timing-over-advanced-or-system-performance-bank-1-by-jay-safford) that the engine control module (ECM) has determined that the bank 1 exhaust camshaft is more advanced than what the ECM has commanded...
Related articles
A Buyer’s Guide to the 2012 Nissan Maxima
The The Maxima is one of the most popular vehicles from Nissan, and they’ve been hitting it out of the park in recent years. The 2012 Nissan Maxima is a fantastic, practical vehicle that offers some excellent performance for a...
2012 Nissan Rogue vs. 2012 Ford Escape: Which One Should I Buy?
Sport Utility Vehicles (SUVs) use the chassis of a truck to provide superior structure, with a larger size and often poor gas mileage. While that isn’t always true, SUVs have a raised ground clearance and are generally meant to haul...
The Best Used Cars to Buy If You’re an Electrician
As As an electrician, you have to haul around wiring, tools and equipment, and tons of supplies. You can’t get by with a small used car, or even a big one. What you probably need is a good used cargo...
Browse other content
Services
Maintenance
Estimates