1990 Mazda 323 noisy lifters for a minute after cold starting it in the mornings Oil was changed once since I had it. change did not cure problem What can do?

That noisy lifter sound in your 1990 Mazda 323 after a cold start, even after an oil change, points to a few potential issues. Since it goes away after a minute, it's likely related to oil viscosity and flow at low temperatures. Here's a breakdown of what you can do:

1. Check the Oil:

* Type: Ensure you're using the correct oil weight specified in your owner's manual. Older engines often benefit from a slightly thicker oil (e.g., 20W-50) in colder climates to maintain better pressure during startup. Using a thinner oil (like 5W-30) might be contributing to the noise.

* Level: Verify the oil level is within the recommended range on the dipstick. Low oil pressure will exacerbate lifter noise.

* Condition: Check the oil's color and consistency. If it's very dark, sludgy, or smells burnt, it needs changing immediately, regardless of when the last change was.

2. Oil Filter:

* Quality: A cheap oil filter might not be filtering impurities as effectively, potentially leading to lifter noise. Consider using a higher-quality filter next time.

3. Lifters Themselves:

* Worn Lifters: Over time, hydraulic lifters can wear out, leading to noise. If the oil and filter are good, worn lifters are a strong possibility. This is a more significant repair, potentially requiring lifter replacement or engine rebuild (depending on the extent of the wear).

4. Other Possibilities (Less Likely):

* Valve Adjustment (unlikely with hydraulic lifters): Some older engines require periodic valve adjustments. However, your 1990 Mazda 323 likely has *hydraulic* lifters, which automatically adjust.

* Other Engine Components: In rare cases, the noise might be mistaken for lifter noise. A mechanic could help pinpoint the source if the above steps don't resolve the issue.

What You Can Do Now:

1. Check the oil: This is the quickest and cheapest thing to do. Check the level, type, and condition. If anything is amiss, correct it immediately.

2. Consider an oil change with a higher-viscosity oil (consult your manual first). This is a relatively inexpensive test.

3. Use a higher-quality oil filter.

4. If the noise persists: Take your car to a qualified mechanic. They can diagnose the problem properly and recommend the best course of action, which might involve a lifter replacement, engine inspection, or other repairs.

Important Note: Ignoring noisy lifters can lead to more significant engine damage. Address the issue promptly to avoid costly repairs later.