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350matt
350matt, Mechanical Engineer
Category: Peugeot
Satisfied Customers: 21878
Experience:  BEng Hons, worked in the car industry for last 22 years
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Have recently purchased a 2013 2008 diesel 1.6. It now seems

Customer Question

Hello
Have recently purchased a 2013 2008 diesel 1.6. It now seems to judder in low revs and low speed. Any ideas of a solution please?
Thanks
John
Submitted: 1 year ago.
Category: Peugeot
Expert:  Shantal-Mod replied 1 year ago.
Hello John,
I'm Shantal and I'm a moderator for this topic.
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Shantal
Expert:  350matt replied 1 year ago.

Hello

I'd 1st consider checking over the the tightness of the engine and gearbox mounts and their condition - this is best done by using a jack to take the weight of the engine off the mounts and seeing if any cracks or splits open up in the rubber.Also check the tightness of the mounts bolts

if this is OK then this could be an airleak after the airflow meter, any air dragged in here isn't 'seen' by the ECU and so not compensated for and can lean the engine ou causing rough running.

As its a mechanical fault it tends not to turn on the fault light and you can sometimes hear a 'hissing' noise with the engine running.

Check the hose clips for tightness and inspect the trunking for any cracks or splits and also all the vacuum system, the small bore pipes and fittings for cracks and missing parts.

The best way to locate a leak is to have the engine running and warm and then spray lighter gas /propane around each joint in turn. If the engine rev's up you've found your leak.

Now you might think that spraying lighter gas around a hot engine isn’t wise, however the flash /ignition point of gas is about 400°C so you need a naked flame or spark to set it off and I’ve used this method for many years without incident.

Work your way through each possible joint one at a time and you should find it. I use a slightly flattened piece of brake pipe and some rubber hose from the can of lighter gas to provide a spraying 'wand' and allow a direct blast of gas into each area, especially those difficult to reach with large implements.

Expert:  350matt replied 1 year ago.

Hi

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