- Timing belt tensioner: The timing belt tensioner is responsible for maintaining proper tension on the timing belt, ensuring it runs smoothly without slipping or slapping against other engine components. If the tensioner is loose, it can cause the belt to vibrate and produce ticking or rattling noises.
- Timing belt: The timing belt itself can also be a source of noise if it is loose, worn, or damaged. A worn or damaged timing belt is more likely to slip, which can cause the engine to run erratically and produce ticking or rattling noises.
- Camshaft bearings: The camshaft bearings are responsible for supporting and allowing the camshaft to rotate smoothly. If the camshaft bearings are worn or damaged, it can cause the camshaft to wobble and produce ticking or rattling noises.
- Camshaft lobes: The camshaft lobes are responsible for opening and closing the intake and exhaust valves. If the camshaft lobes are worn or damaged, it can cause the valves to open or close at the wrong time, which can result in ticking or rattling noises.
- Hydraulic valve lifters: The hydraulic valve lifters are responsible for adjusting the valve clearance between the camshaft and the valves. If the hydraulic valve lifters are worn or damaged, they can cause the valve clearance to become too large, which can result in ticking or rattling noises.
To fix the ticking or rattling noise, the following repairs may be necessary:
- Replace the timing belt tensioner
- Replace the timing belt
- Replace the camshaft bearings
- Replace the camshaft lobes
- Replace the hydraulic valve lifters
It is crucial to properly identify the root cause of the noise before attempting any repairs to ensure that the issue is resolved effectively. If you lack the necessary expertise, it is advisable to consult with a qualified mechanic to diagnose and repair the ticking or rattling noise in your 95 Probe 2.5 GT.
