Why Does My Car Not Speed Up When I Press The Gas?

Why Does My Car Not Speed Up When I Press The Gas? If you car doesn’t move when you step on the gas pedal, this is usually an indication of a fuel system issue. However, it can also be an indication of engine problems or a stuck emergency brake. Typically before acceleration failure, you may

Where Is The Transmission Modulator Valve?

Where Is The Transmission Modulator Valve? The modulator valve is attached to the intake manifold with a vacuum line. It senses intake manifold vacuum and shifts the transmission accordingly: When you press down on the gas pedal, the throttle plate opens and the vacuum is reduced. What are the symptoms of a bad transmission modulator?