* Lifters/Hydraulic Lifters: These are common culprits in older engines. If they're worn, sticking, or low on oil pressure, they can create a ticking noise. The fact it's quieter when warm suggests this is a strong possibility – oil gets thinner when warm, potentially alleviating the issue temporarily.
* Valve Train Issues: Worn valve guides or rocker arms can also produce a ticking sound. Again, this is often more pronounced when the engine is cold.
* Exhaust Manifold Leak: While less likely to be a *ticking* sound specifically, a small leak in the exhaust manifold can create a ticking or tapping noise, especially at idle or under load.
* Timing Chain/Belt (less likely): A worn or loose timing chain or belt can create various noises, but a ticking sound isn't its most common symptom. It's usually more of a rattle or clicking.
* Other Possibilities: Less likely but worth mentioning: Loose heat shields, a worn alternator bearing (though this would likely have other symptoms), or even something external like a loose accessory.
Why it's important to get it checked: Ignoring a ticking noise can lead to severe engine damage. A simple lifter problem might be an inexpensive fix, while a more serious issue like a failing valve could be costly if neglected.
Before taking it to a mechanic:
* Check your oil level: Low oil can exacerbate lifter noise.
* Listen carefully: Try to pinpoint the location of the noise as accurately as possible. This helps the mechanic diagnose the problem more quickly. A recording of the sound could be helpful.
In short: Don't drive the car extensively while it's making this noise. Get it to a trusted mechanic for diagnosis and repair as soon as possible. The relatively low mileage might suggest premature wear, which a mechanic can help determine the cause of.
