Q: High pitched whining noise on startup

asked by on

high pitch whinning on start up which decreases and sounds as if engine has Idled down. Sound repeats if engine is in off position for several minutes. reaction time on exceleration is great. Could it be the secondary injection pump going bad? check engine light use to come on. Had vehicle checked told it was sensors. purchased sensors, mechanic said it's not the cause, says it's the secondary air pump. I don't know who to believe. HELP I WANT TO GET RID OF THIS NOISE.

My car has 82000 miles.
My car has an automatic transmission.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. High pitched whining noise on startup

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: Check engine light on, temperature goes to hot, noisy engine, car shuddring and turns off.

Fault codes need to be read out from the engine computer. There is a technical service bulletin (TSB) out by Lexus that points to a faulty thermostat causing a Check Engine Light, and that the thermostat should be replaced based...

Q: Engine and Transmission mounts have collapsed. Do they have to be replaced immediately? How much for both? TBC....

If the engine mounts are faulty, the drive axles will operate at the wrong angle eventually causing premature wear-out of the axles so it is important to get the mounts replaced. If you would please refer to YourMechanic's motor mount...

Q: Periodically vibrating steering wheel at interstate speeds

Vibration at that speed is often related to the tires. It could be that one or more of the tires are out-of-balance, or that they have worn unevenly and now have a bad pattern worn into them. Vibration can also...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...