1990 Honda Accord Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 1990 Honda Accord 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 Honda Accord 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 Honda Accord 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.

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 steps should I take to diagnose the oil leak in my 1990 Honda Accord?

To effectively diagnose an oil leak in your 1990 Honda Accord, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by locating the leak; inspect the ground beneath your vehicle for any signs of oil pooling, which can help you pinpoint the general area of the leak. Next, conduct a thorough inspection of the engine components, focusing on common culprits such as the valve cover gasket, oil pan gasket, oil filter, and oil drain plug. It's also crucial to check the oil level in the engine, as a significant drop may indicate a leak. Pay special attention to the oil filter for any signs of damage or leakage, and ensure it is securely tightened. Additionally, examine the oil pan for cracks and inspect the valve cover gasket for any oil seepage. Don’t forget to check the oil drain plug to confirm it is tight and not contributing to the leak. If the source remains elusive, consider adding UV dye to the oil, which can help illuminate the leak under a UV light. Should these steps not yield results, consulting a mechanic for a professional diagnosis is advisable to ensure a thorough resolution of the issue. By following this structured approach, you can efficiently identify and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 1990 Honda Accord?

When dealing with oil leaks in a 1990 Honda Accord, it's essential to understand the common problems that can arise. One of the primary culprits is worn-out drain plugs, which can lead to significant oil loss if not replaced. Additionally, damaged gaskets, particularly the oil pan gasket and VTEC solenoid gasket, are frequent sources of leaks. Regular inspection of these gaskets can help catch issues early. Another area to check is the oil filter; a damaged or improperly installed filter can also contribute to leaks. Furthermore, loose oil drain plugs and worn-out cover gaskets can exacerbate the problem. It's advisable to routinely examine these components and address any signs of wear or damage promptly. By staying proactive and performing regular maintenance, you can effectively manage and prevent oil leaks in your Honda Accord.

How urgent is it to address the oil leak in my 1990 Honda Accord?

Addressing an oil leak in your 1990 Honda Accord is not just a matter of routine maintenance; it is a pressing issue that requires immediate attention. An oil leak can lead to a significant loss of engine oil, which is vital for lubricating moving parts and preventing friction that can cause severe engine damage. If left unchecked, low oil levels can escalate into catastrophic engine failure, resulting in costly repairs or even the need for a complete engine replacement. Moreover, the safety implications of an oil leak cannot be overlooked; oil dripping onto hot engine components poses a serious fire hazard, endangering both the vehicle and its occupants. Additionally, the environmental impact of leaking oil is concerning, as it can contaminate soil and water sources, contributing to broader ecological damage. Therefore, it is crucial to prioritize the repair of any oil leaks in your Honda Accord to safeguard your vehicle's performance, ensure your safety, and protect the environment.

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1990 Honda Accord Oil Leak: Causes & Repair Estimates