Why is my car whining at idle?
If you are hearing whining noises when your car is idling, you are probably either low on oil due to an oil leak or your valves are stuck and need adjusting.
Why is my car making a whining noise in park?
If you hear a whining noise while your vehicle’s transmission is in park or neutral, it could very well be caused by worn needle bearings inside the transmission’s torque converter. If these bearings wear out, the transmission will begin to have trouble shifting.
Can a serpentine belt make a whining noise?
To route a serpentine belt, many cars use free-spinning pulleys like the one in the photo. It’s called an idler pulley. It spins on a little bearing. When that bearing goes bad, it can produce a whining/whirring or screeching noise.
Does a bad catalytic converter make a whining noise?
A whine, squeal or other weird noise during acceleration can indicate that your exhaust gases aren’t being processed and filtered properly. Many people think the muffler is the reason for weak acceleration, but it’s usually the catalytic converter. Your nose might be the key to detecting catalytic converter failure.
Why does my car make a whining noise?
Cars can make these whining noises from 1 of 2 places. The transmission or the power steering system. They make similar noises because the working fluid and pumps in each have very similar designs.
Can a tensioner idler cause a car to make noise?
If you establish it’s not the tensioner idler, then alternator becomes likely. Start car w/o alternator belt and confirm noise has disappeared. Then you’ll need a new or rebuilt alternator. If none of these locate the problem, you may have a problem w/ timing belt idler or tensioner. Bad news, but you better get in there and find the problem.
Why does my alternator whine when I start the car?
Same sound- like an alternator bearing whine or maybe power steering when cold, then decreasing as engine warms. Before making a service appt., I tried dripping some water on belt then starting engine. After a momentary squeal of the belt, the noise was gone.