Violent lumping when car is started (Xantia 90Hdi)

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rmunns
Posts: 611
Joined: 09 Jul 2009, 22:09
Location: Southern Dordogne, France
My Cars: 2019 C5 Aircross 2litre diesel, auto.
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2011 C4 Picasso excl. - shaping up to be a disaster, bought June 2019. P/X'd
2009 Citroen C5 X7 exclusive, auto, LHD, 207500km (129000miles) now sold
Citroen Xsara Picasso excl. 2004 2.0 Hdi, RHD, 64000miles. (sold)
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Violent lumping when car is started (Xantia 90Hdi)

Post by rmunns »

I've noticed more and more that when starting, when cold, there is a heavy lump when it starts. I don't notice it when the engine is warm.

Any ideas what this might be?

Car is from year 2000 and has done 55000miles, good service history.
red_dwarfers
(Donor 2020)
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Joined: 29 May 2008, 15:59
Location: Zomerzet UK
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Post by red_dwarfers »

Could it be one of the fuel filters, oil filter or thick/old oil?
I found a vast improvement when mine started doing this by getting a service done.
Kev

'19 C4 Cactus 130 Flair
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