1990 Plymouth Acclaim Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 1990 Plymouth Acclaim and How to Fix Them Effectively

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
80% chance it's the
Oil System Components
0%
20% chance it's the
Engine Gaskets
The most common reasons a 1990 Plymouth Acclaim is leaking oil are oil system component failure and leaking engine gaskets.
  • Oil System Components: A worn or damaged oil pump or filter can lead to low oil pressure, resulting in inadequate lubrication and potential engine damage.
  • Engine Gaskets: A worn or damaged engine gasket can lead to oil or coolant leaks, resulting in engine overheating or loss of lubrication.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 1990 Plymouth Acclaim is leaking oil?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

Oil pans don't wear out or break like other parts, they generally only need to be replaced because of external damage from an accident or an improperly tightened drain plug. The main symptom you will experience is an oil leak underneath the engine of your car. The oil that leaks from a damaged oil pan will range from dark brown to dark black. If the leak is large enough or occurs for long enough the oil level will be low enough to turn the oil pressure or low oil level warning light on.

An oil leak may be noted on the ground where the vehicle is parked. However, many vehicles have plastic trays underneath the engine that may catch leaking oil and conceal the leak. In such cases, a low oil level, a burning oil smell, or even smoke from oil burning in the engine bay may be noted.

»MORE: Signs of a bad oil pan gasket

The engine oil pressure warning light will come on if the engine oil pressure is low, or if the oil pressure sensor is faulty. In either case, engine power may be reduced significantly. The check engine light may also illuminate, and an on-board diagnostic (OBD) trouble code will be stored in the vehicle's computer.

What are the first steps to diagnose an oil leak in a 1990 Plymouth Acclaim?

To effectively diagnose an oil leak in your 1990 Plymouth Acclaim, begin by thoroughly investigating the leak's source. Start by examining the area beneath your vehicle for any visible signs of oil, such as drips or puddles, which can help pinpoint the leak's location. Next, check the oil level in your engine; a significant drop may indicate a serious leak that requires immediate attention. Inspect key engine components, including the oil pan, valve cover gasket, oil filter, and oil drain plug, for any signs of oil residue or damage. If the leak remains elusive, consider adding UV dye to your engine oil, which can be traced with a UV light to reveal the leak's origin. Should these steps not yield results, or if the problem appears complex, it may be wise to consult a professional mechanic for further assistance. By following this structured approach, you can efficiently diagnose and address oil leaks, ensuring your Plymouth Acclaim remains in optimal condition.

What are the common causes of oil leaks in a 1990 Plymouth Acclaim?

When dealing with oil leaks in a 1990 Plymouth Acclaim, it's essential to understand the common problems that can arise within the vehicle's oil system. One of the primary culprits is the failure of oil system components, which can lead to leaks from various areas, including the drain plug and oil filter. Additionally, engine gaskets, particularly the valve cover and oil pan gaskets, are prone to wear and can shrink or fail over time, resulting in oil seeping out. If you notice oil pooling under your car or smell burning oil, it’s crucial to inspect these gaskets and seals for any signs of damage. Unusual noises from the engine may also indicate a more serious issue, so addressing these symptoms promptly can help prevent further damage and costly repairs. By being aware of these common causes, DIYers can effectively troubleshoot and resolve oil leaks in their Plymouth Acclaim.

How urgent is it to address the oil leak in my 1990 Plymouth Acclaim?

Addressing an oil leak in your 1990 Plymouth Acclaim is not just a matter of routine maintenance; it is an urgent issue that demands immediate attention. Oil leaks can severely compromise your engine's lubrication, leading to increased friction and the risk of catastrophic engine damage. If left unchecked, the performance and efficiency of your vehicle can decline, potentially resulting in breakdowns or even complete engine failure. Moreover, the safety implications cannot be overlooked; leaking oil can drip onto hot engine components, creating a fire hazard that endangers both you and your vehicle. Additionally, the continuous loss of oil can lead to dangerously low oil levels, which may cause overheating and further exacerbate engine damage. Therefore, it is imperative to act swiftly to repair any oil leaks, ensuring the safe and efficient operation of your Plymouth Acclaim while preventing costly repairs down the line.

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