4a-fe Ae92 Tapping Noise On Idle

[Lachlan H]

Just wondering if anyone can help me with this question before i take it to a mechanic see if they know anything.

 

This only happens when I'm on the run, not on startup or anything else. In my AE92 4A-FE, if I'm sitting at the lights say with my foot on the clutch and brake waiting to go, i can hear a tapping noise from under the bonnet like "TAP TAP TAP TAP TAP" continuously while the engine idles. Its been like that since i bought the car, its not a major problem, but i really want to find what it is because my car is going amazing at the moment and that's the only thing that is annoying me. Has anybody else had this noise, it almost sounds like something taping against the firewall or something....Or does anybody have any ideas how to find the noise haha!

 

Thanks

[71 Wagon]

Hey Lachlan,

 

I have a similar noise that has been annoying me in my wagon and I just found out what it is. The rough blokes who changed my windscreen had broken some of the plastic brackets that hold the windscreen surround and lost two of the screws in the bonnet lip. My point is look around your bay to see if anything has been removed and put back and is missing screws etc... If the noise is in the engine then you need to listen intently while warm. I find my 4ac has a few ticks even though it is also running awesome at the moment. I recently had a large tick that was the washer at the top of the thermostat had come off and drifted it's way into the water pump' wedging itself next to the impeller. Must have been like this for a couple of months until it dislodged. And now with new water pump that has a whine at idle. Another tick is deeper in the engine and because it only happens when it's warm I am guessing it's the front or rear bearings that are moving at low revs cos they are hot. Big job that one. A stethescope is also a tool commonly used to listen to engines. Maybe give that a try if you can get a hold of some. your ears are your best tool.

 

71Wagon

[Rolla Boy]

What happens if you sit at the lights in neutral???

 

Sounds like your clutch release bearing needs to be changed...