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fruitsalad | 18:47 Mon 04th Jun 2018 | Motoring
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I have ask regarding this before, but now I know what actually happens when I'm driving, Im just wondering if anyone would have anymore ideas, my car is a 2002 high mileage 167.000 a diesel and sometimes it loses power, I take my foot of the accelerator then back on again and it picks up speed again, I dont want to spend a lot of money on it, due to its age and mileage, although apart from that its a good car.
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Could it be a fuel blockage maybe
If it was a fuel blockage I would expect the engine to run rough, not just loose power.
Have you tried plugging in an OBD scanner to see if there are any faults reported?

When it happens, does the engine warning light illuminate?
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No engine warning light comes on
If you know of a friendly local garage, they might be willing to fault find the vehicle without charge (charging you for the repair/fix), but most want to charge for such work.

There could be many reasons for such a loss of power – with the occurrence being intermittent, fault finding could be tricky. I would be reluctant to pay a garage to investigate the problem, possibly paying them money for nothing.

Given the value of the vehicle, I’d be tempted to live with the problem until the next repair bill results in the vehicle being scrapped.

Beg/Borrow/buy one of these – although no warning light comes on, it might identify the fault.

https://www.ebay.co.uk/itm/2018-Universal-Car-Fault-Code-Reader-D900-OBD2-EOBD-CAN-Diagnostic-Scanner-Tool/122028314392?hash=item1c69744f18:g:risAAOSwKOJa3d7G
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Had the diesel filter changed today and it seems to be doing it more often
I had fright with my last diesel when it lost power - I had to use kick-down on motorway hills the loss was so great. I was convinced the turbo had gone but the garage said it was the air-mass monitor (or words to that effect); it monitors the throttle position and engine vacuum and decides how much fuel to inject. That fixed the problem relatively cheaply (I can't remember how much).
It does sound like a vacuum problem, possible that the vacuum pump is sticking producing poor vacuum which in turn causes the turbo to operate incorrectly.
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Thanks guys seemed strange how when I had the diesel filter changed, which I might add was full of water or some sort of liquid, it seems to be doing the losing power thing more often than it was before I had it changed.
// it seems to be doing the losing power thing more often than it was before I had it changed. //

It's getting worse, you mean - intermittent faults often do. The diesel filter could be irrelevant.

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