You can seldom see failing fuel pressure regulators. But, if they malfunction, this can result to low pressure. Thus, knowing the symptoms of a bad fuel pressure regulator is essential for you to prevent major problems. The following are the signs that you have a bad fuel pressure regulator:
- Your car stumbles and doesn’t run smoothly.
- Noisy fuel pump
- Fouled spark plugs
- Decreasing engine fuel mileage
- Engine failing to start after ignition
Once you see these signs, you have to see a car mechanic and have your car’s fuel pressure regulator replaced right away.