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1998 300Tdi Auto with buzzing from injector pump

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1998 300Tdi Auto with buzzing from injector pump

Post by Discobuzz » Fri Jul 07, 2023 9:17 am

Hello all,

I’ve inherited a fine 1998 300tdi auto Discovery. I love it, its fabulous!

Unfortunately I do not know anything about the history of the car so I have immediately replaced the cam and auxiliary belts and serviced it.

Something I hadn’t noticed before, but is very prominently evident to me now, is a very rapid loud electrical ticking sound from the injector pump, even before the engine is started (‘ignition’ on), that continues when the engine is running. The engine (which I think is an EDC Electronic Diesel Control) unit, starts, drives and stops perfectly.

Please could you spare me a moment of your skill and experience and tell me if you know what the ticking will be and if it is anything I need to attend to?

Thank you.

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