{"id":6138,"date":"2022-09-25T19:53:11","date_gmt":"2022-09-25T19:53:11","guid":{"rendered":"https:\/\/www.motoraudit.com\/?p=6138"},"modified":"2023-10-17T16:59:37","modified_gmt":"2023-10-17T16:59:37","slug":"why-6-7-powerstroke-whine-when-accelerating-fix-now","status":"publish","type":"post","link":"https:\/\/www.motoraudit.com\/why-6-7-powerstroke-whine-when-accelerating-fix-now\/","title":{"rendered":"Why 6.7 Powerstroke Whine When Accelerating? (Fix Now)"},"content":{"rendered":"\n

Powerstroke 6.7 engine is mostly used in Ford F250 vehicles. It is a very reliable engine that offers long-distance durability. But one problem that users face is a whining sound whenever they try to accelerate. <\/p>\n\n\n\n

The most common causes of whining during acceleration of the 6.7 Powerstroke engine are a failing or faulty alternator or a shortage of power steering fluid. You may also notice other factors such as a failing water pump or a worn-out serpentine belt.  <\/strong><\/p>\n\n\n\n

In this article, we\u2019ll go through five common causes and their relevant solutions for the identified causes. <\/p>\n\n\n

\"Why<\/figure>\n\n\n

Why Does My 6.7 Powerstroke Whine When Accelerating?<\/h2>\n\n\n\n

The most common causes of whining during acceleration of the 6.7 horsepower engine are a failing alternator or low power steering fluid. But there might be other factors as well, which include: <\/p>\n\n\n\n

    \n
  • Failing alternator <\/li>\n\n\n\n
  • Low Power Steering Fluid <\/li>\n\n\n\n
  • Failing Water Pump <\/li>\n\n\n\n
  • Worn out Serpentine belt <\/li>\n\n\n\n
  • Bad timing belt tensioner<\/li>\n<\/ul>\n\n\n\n

    5 Possible Solutions of 6.7 Powerstroke Whine When Accelerating  <\/h2>\n\n\n\n

    We mentioned the most common causes, such as a failing alternator or power steering fluid, but here we go into how we can fix these issues as well as the cost associated with the solutions.  <\/p>\n\n\n\n

    1. Faulty alternator: Purchase a new alternator<\/h3>\n\n\n\n
    \"\"<\/figure>\n\n\n\n

    A failing or dead alternator is one of the most common causes of a whining sound during acceleration of a 6.7 Powerstroke engine. Signs of failing Alternator problems include abnormally illuminated lights, slow functioning car accessories, battery warning lights, etc. <\/p>\n\n\n\n

    The solution is to simply get a new alternator. Take the following course of action to replace the alternator:  <\/p>\n\n\n\n

      \n
    1. Start by getting the appropriate equipment for the repair. Make sure to get the right replacement kit for the alternator model that you have in your 6.7 Powerstroke driven vehicle. <\/li>\n\n\n\n
    2. Disconnect the positive terminal of the battery for safety reasons. <\/li>\n\n\n\n
    3. The next step is to remove the alternator. First remove the harness on the back of the alternator. Fill the reservoir with steering fluid. and then proceed to remove the two bolts keeping the alternator attached. <\/li>\n\n\n\n
    4. Remove the plastic cover of the alternator by detaching the two bolts on it. <\/li>\n\n\n\n
    5. Now remove the brushes and the regulator. Then proceed by installing the new regulator followed by the new brushes. Make sure to have the bolts tightened and the wiring done correctly. <\/li>\n\n\n\n
    6. Continue by refitting the plastic cover, followed by the alternator. <\/li>\n\n\n\n
    7. Check if the new alternator works by connecting it to a multimeter and starting the car. If you register a reading of around +14.3 volts, then you\u2019ll know that it is working. <\/li>\n<\/ol>\n\n\n\n

      Changing the alternator will cost you between $120 and $260. <\/p>\n\n\n\n

      2. Low Power Steering fluid: Fill the reservoir with steering fluid.  <\/h3>\n\n\n\n
      \"\"<\/figure>\n\n\n\n

      To check whether the cause of the whining sound on the 6.7 Powerstroke is the power steering, turn the steering wheel in both directions. If you notice that the sound of the whine increases as you steer, then you are low on steering fluid. <\/p>\n\n\n\n

      Follow these steps to fill up the reservoir with steering fluid. <\/p>\n\n\n\n

        \n
      1. First, you have to find the reservoir cylinder holding the power steering fluid. You will usually find it in the owner\u2019s manual. <\/li>\n\n\n\n
      2. Using the dipstick attached to the cap, check the level of power steering fluid. <\/li>\n<\/ol>\n\n\n\n

        Make sure to take out the dipstick and then wipe it dry before reinserting it into the cylinder to get a more accurate estimate. <\/p>\n\n\n\n

          \n
        1. Examine the fluid-covered portion of the dipstick <\/li>\n\n\n\n
        2. Check the color of the fluid to see if it is clear or pinkish. That means the fluid is of good quality. <\/li>\n\n\n\n
        3. Now add the required amount of fluid as needed. If the dipstick has gradations, use that to ensure accuracy of fluid amount. <\/li>\n\n\n\n
        4. Finish by firmly locking the cap in place. <\/li>\n<\/ol>\n\n\n\n

          The power steering fluid will cost no more than $10\u2013$12 per bottle. <\/p>\n\n\n\n

          3. Failing water pump: replace the water pump. <\/h3>\n\n\n\n
          \"\"<\/figure>\n\n\n\n

          A water pump failure will usually result in a squeaking sound that\u2019s higher than in the case of a faulty alternator. Common signs of a failing water pump are an overheating engine (signified by warning lights) and coolant leakage. <\/p>\n\n\n\n

          To replace the water pump, follow the given procedure below. <\/p>\n\n\n\n

            \n
          1. First, wait until the engine is cool to ensure safety. <\/li>\n\n\n\n
          2. Take out all the belt drive components by adhering to the manufacturer\u2019s recommended steps. <\/li>\n\n\n\n
          3. Disconnect the hose from the water pump. Put a bucket under the pump as some of the coolant liquid will fall off as well. <\/li>\n\n\n\n
          4. Unbolt the water pump and then remove it. <\/li>\n\n\n\n
          5. Remove any remaining sealant from the pump. Also, make sure that the mounting surface is not dirty. <\/li>\n\n\n\n
          6. Check the other parts of the coolant system, such as the thermostat, coolant hose, etc., before putting in a new water pump. <\/li>\n\n\n\n
          7. Now it is time to install the new water pump. Make sure to adhere to the replacement requirements. If this is the case, a replacement is required. <\/li>\n<\/ol>\n\n\n\n

            4. Worn Serpentine Belt: Replace The Serpentine Belt <\/h3>\n\n\n\n
            \"\"<\/figure>\n\n\n\n

            The most clear sign that the serpentine belt is worn out is when there are warning signs that flash on the dashboard of the 6.7 Powerstroke engine vehicle. <\/p>\n\n\n\n

            Heavy steering, high pitched sounds, non-functional air conditioner etc. are other common signs of the problem. The solution for a worn serpentine belt is to get a new one. The following steps will guide you through it. <\/p>\n\n\n\n

              \n
            1. Start by locating the serpentine belt. You will find it inside the hood of the vehicle.<\/li>\n\n\n\n
            2. Make sure to keep the battery disconnected to ensure maximum safety. <\/li>\n\n\n\n
            3. Determine whether the belt is being pressed by an auto tensioner or a movable bracket.\n