How to diagnose engine noises?
Diagnosing Common Engine Noises
- Piston Ring Noise. Sounds like: Clicking noise during acceleration.
- Piston Slap. Sounds like: Continuous muffled, hollow sound.
- Crankshaft Knock. Sounds like: Dull, heavy, metallic knock under load.
- Valvetrain Noise.
- Detonation.
- Connecting Rod Noise.
- Piston Pin Noise.
Why does my Nissan Murano make a whining noise?
If it changes with the engine, it’s most likely going to be an accessory bolted to the engine (or the radio, shut it off and see if it stops). If it stay constant as you rev the engine it’s going to be something else. A whining sound when accelerating is almost always caused by a bad accessory attached to your Murano’s engine.
Why does my Nissan make a rattling noise when I accelerate?
We have tried using the emergency brake in conjunction with the normal brake, putting the car in gear and then accelerating – it does not make the noise then either. The only time we have been able to get the rattle is when the car is actually moving while accelerating from a stop.
When does the Murano rattle when you accelerate?
The Murano rattles upon acceleration, but the rattle does not happen all the time. When it does happen, it seems to be around 20mph and between 1500 – 2000 rpm. The noise level is also different, sometimes it is a softer rattle that is on the quieter side, while other times it is more harsh and rather loud.
Why does my Audi make a whining noise when I start the car?
A bad torque converter can cause a whining sound when starting your vehicle. A good place to start would be to check the transmission fluid. You’re going to want to check it for both color, and metal content. If you see any flecks of metal on there, it is probably going to need serviced.
If it changes with the engine, it’s most likely going to be an accessory bolted to the engine (or the radio, shut it off and see if it stops). If it stay constant as you rev the engine it’s going to be something else. A whining sound when accelerating is almost always caused by a bad accessory attached to your Murano’s engine.
The Murano rattles upon acceleration, but the rattle does not happen all the time. When it does happen, it seems to be around 20mph and between 1500 – 2000 rpm. The noise level is also different, sometimes it is a softer rattle that is on the quieter side, while other times it is more harsh and rather loud.
We have tried using the emergency brake in conjunction with the normal brake, putting the car in gear and then accelerating – it does not make the noise then either. The only time we have been able to get the rattle is when the car is actually moving while accelerating from a stop.
A bad torque converter can cause a whining sound when starting your vehicle. A good place to start would be to check the transmission fluid. You’re going to want to check it for both color, and metal content. If you see any flecks of metal on there, it is probably going to need serviced.