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Matt
Matt, Mechanical Engineer
Category: Car
Satisfied Customers: 21990
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Landrover Freelander TD4 There is loud ticking noise on

Customer Question

Landrover Freelander TD4

There is loud ticking noise on tickover noise goes on acceleration
Submitted: 3 years ago.
Category: Car
Expert:  Matt replied 3 years ago.
Hello


I'd first try removing the auxiliary drive belt and turning every pulley and ancillary ( power steering pump , alternator etc) by hand. All should turn easily (with the exception of the AC pump) with no grittyness or wobbly pulleys- If you do find a sticky pump / alternator then it should be replaced or repaired
If the engine is stone cold you can briefly run it with no belts to see if the noise changes or has gone away, this will help show if an ancillary is the issue


if this is OK thencheck for exhasut leaks especially from the head to manifold joint as a small leak can often produce a ticking noise

The best way to find an exhaust leak is to run the engine from cold and feel around the exhaust joints with your bare hands - you'll have about 30 seconds before it all gets too hot and you should feel any escaping gas blowing over your fingers