Peugeot 406 judder at around 1400-1600 RPM

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MyPug
1.8 8v
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Re: Peugeot 406 judder at around 1400-1600 RPM

Post by MyPug »

Had the freewheel alternator pulley replaced today and that made a really big difference on the judder. It is still there but I don't notice it as much as before.
Perhaps there are other pulleys with vibration dampers that are failing.
2003 HDi, 90HP (DW10TD), saloon D9, 5 speed manual (ML5C), silver met (EZR).
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MyPug
1.8 8v
Posts: 36
Joined: Thu Mar 19, 2015 8:35 pm

Re: Peugeot 406 judder at around 1400-1600 RPM

Post by MyPug »

Another ting I noticed is that when I started and stopped the Diesel engine, it shocked violently. But after I replaced the alternator pulley it is much smoother when starting and stopping.
2003 HDi, 90HP (DW10TD), saloon D9, 5 speed manual (ML5C), silver met (EZR).
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MyPug
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Joined: Thu Mar 19, 2015 8:35 pm

Re: Peugeot 406 judder at around 1400-1600 RPM

Post by MyPug »

I ordered a Pressure Control Valve (PCV) today from Merlin Diesel and it is a genuine VDO part Made in Germany. So it should be of good quality. Part number A2C59506225.
When I have replaced it I will post the result. Fingers crossed.
2003 HDi, 90HP (DW10TD), saloon D9, 5 speed manual (ML5C), silver met (EZR).
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MyPug
1.8 8v
Posts: 36
Joined: Thu Mar 19, 2015 8:35 pm

Re: Peugeot 406 judder at around 1400-1600 RPM

Post by MyPug »

The Pressure Control Valve (PCV) has been replaced and it didn't help.
The judder is still present at 1500 RPM. And now, after replacing the PCV it has started happening at 1800 RPM as well. So it has become worse. It feels like it is all over the place. Particularly when the engine load is light, for example driving steadily on a flat road.
Not sure where to go next. Any input to help solve this mystery is much appreciated.
2003 HDi, 90HP (DW10TD), saloon D9, 5 speed manual (ML5C), silver met (EZR).
frog
2.0 Turbo
Posts: 310
Joined: Sun Aug 24, 2014 12:18 pm
Location: Netherlands

Re: Peugeot 406 judder at around 1400-1600 RPM

Post by frog »

Particularly when the engine load is light, for example driving steadily on a flat road.
Maybe it is a bad engine mount?
Current "fleet":
2003 406 Estate 2.0HDi 110 - 7 seater - just hit 650.000 kms :cheesy:
2001 Citroen Saxo 1.6i 8v 100

Previously owned:
2000 406 Sedan 2.0 HDi 90
2000 406 Coupé 2.0i 16v 138 - Riviera Blue

PP2000 user, can help with faults / diagnostics in the Netherlands.
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