Tip - 5 Signs That Your Car Needs a Transmission Flush

The 5 signs include: 1) strange noises or even grinding coming from the transmission, 2) you experience problems shifting gears, 3) you experience some slippage when shifting gears, 4) unexplained surging of you vehicle, and 5) delay in movement after placing the vehicle in gear. The general recommendation is to flush your transmission every 2 years or 30,000 miles.