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2.0HDI juddering solved
#1
My few month old to me 2.0HDI has had an increasing judder at 30mph in 4th gear - ie low engine speeds/medium loads. Googling showed this was an issue with 2.0HDI's. I've substantially improved it by-

1. Disconnecting and plugging the EGR valve vacuum line. It doesn't throw up the EML

2. Replacing the MAF - my fuel economy was poor and I could see it was over fuelling (smokey at night with following headlights). A failed MAF doesn't throw up the EML

3. Replaced the upper engine mount buffer - my original buffer had a clearly visible few millimeter gap between the elastomer and body allowing the engine to move considerably fore and aft. Lemforder make an alternative 'Group N' design buffer that fitted far tighter than the original.

4. Italian tune up - due to the torquey nature of these engines it's possible to drive them without getting any serious heat into these engines. Mine was definitely clogged up but a full load/full rev range thrash through Wales cleared it.

It's far better now - it will pull 30mph in 4th gear from 1k revs. It's not 100% but I think that's down to the general poor quality of the Siemens ECU fuelling. The engine buffer made the biggest difference none of the other engine mounts were changed.


New engine buffer on top - original underneath.
[Image: 22-F0-EE00-2-B98-4-A44-85-FB-B46-E1-FF9-FD29.jpg] [Image: 514-E4588-BC83-4-AA1-8-BF6-EEC458362509.jpg]
2004 Peugeot Escapade 2.0HDI. 83k miles
2004 Volvo V70 2.4  200k miles
1999 Volvo V70XC.  150k miles
[-] The following 2 users say Thank You to Kyleonsite for this post:
  • cancunia, Kieron G
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