When does transmission noise increase with engine speed?
The noise will increase in pitch as vehicle speed increases. The important thing to remember here is that the noise will not change with engine speed or when the transmission shifts, only with vehicle speed. However, its easy to mistake the noise from a bad power train mount for a final drive noise.
When does the transmission noise go away in a 4T60?
For example, a 4T60-E has a noise in neutral while stationary. The noise goes away when the transmission is in gear. Right away, you can rule out the torque converter. Since the pump is producing the same pressure in neutral as it is in gear, you can also rule it out.
Can a bad check engine light be a bad TPS?
The check engine light will randomly turn on and off even if the car is running smoothly without any jerks and stalling. This is often the first ever symptom of a bad TPS. Using a code reader, you should be able to confirm whether a faulty TPS is the culprit or a different component.
Can a bad throttle position sensor cause idle surging?
Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges. 3) Check Engine Light
Why does my Pontiac Grand Prix 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 Grand Prix’s engine.
Why does my transmission make so much noise?
Many types of noise are transmission related. Sometimes it’s nothing more than a normal noise that sounds louder because of bad mounts or because part of the transmission is touching the frame or underbody of the car.
What does it mean when your transmission is gurgling?
If you hear a gurgling noise, particularly while shifting gears, it may mean that your fluid levels are low enough to cause damage to your transmission. After noticing any of these noises coming from your transmission, make sure to bring your vehicle to a dealership professional for service.
For example, a 4T60-E has a noise in neutral while stationary. The noise goes away when the transmission is in gear. Right away, you can rule out the torque converter. Since the pump is producing the same pressure in neutral as it is in gear, you can also rule it out.