![]() In some cases, these devices simply wear out, causing transmission slippage. Worn holding devicesĭeteriorated clutches and bands: Clutches and bands are made from friction material. Solution: Typically, the transmission must be rebuilt or replaced when there’s an internal leak. This can cause a lack of pressure and make the transmission slip. Internal fluid leaks: Fluid leaks inside the transmission can come from sources such as damaged seals. In most cases though, the transmission will need to be rebuilt or replaced. Solution: Sometimes the valve body can be replaced by itself. A problem inside the valve body can prevent adequate fluid from reaching the transmission bands and clutches. This often results in debris contamination and subsequent damage to the transmission.įaulty valve body: The valve body directs fluid to internal transmission components. The lack of pressure created by the faulty pump causes the transmission clutches and bands to slip and burn. Solution: Typically, the transmission must be rebuilt or replaced when the pump fails. You may hear a whining noise, or notice a fluid leak. A pump that is damaged or worn can result in a lack of internal pressure and transmission slippage. Worn transmission pump: The transmission pump supplies pressurized hydraulic fluid to the transmission. Test the car to make sure that solves the problem. Solution: Replace the transmission fluid and filter (if your car has one). ![]() Dirty automatic transmission fluid can appear orange-reddish or reddish-brown. This can cause a lack of pressure, preventing the gears from engaging. Once that’s taken care of, the transmission fluid can be refilled, and you can road-test your car to make sure the issue has been resolved.ĭirty transmission fluid: Metal debris and other contaminants can build up in dirty transmission fluid. Your mechanic can find the source of the leak and repair it. You might see red fluid on the ground under your car. A low transmission fluid level means there is a leak somewhere. Solution: A transmission doesn’t “burn” fluid the way an engine can burn oil. This often results in transmission slippage. A low fluid level can result in lack of pressure, preventing the gears from engaging like they should. Low fluid level: Automatic transmissions depend on pressurized hydraulic fluid. These are the most common causes of transmission slippage: If your transmission is slipping, it doesn’t necessarily mean it’s falling apart, but it does mean that it needs maintenance urgently.
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