Peugeot Expert showing engine management light

What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks

Peugeot Expert showing engine management light

Every so often the engine management light comes on my Peugeot Expert (2002) and the engine starts to make a knocking noise. Sometimes it only lasts a couple of seconds, other times it can be a week. It eventually stops and the van runs ok for month or so and then happens again. Do you have any idea what the fault could be?

Asked on 20 July 2014 by lawkid

Answered by Honest John

This is a compression ignition engine with a very high compression ratio.

Unlike the fuel/diesel mix, if water gets into the air being fed into the combustion chambers it cannot compress and the engine 'hydrolocks'. This is what you are hearing.

Just a little bit more water will bend the conrods with very serious consequences.

So make sure you seal the air intake system so water cannot get in and do not ever drive through floods.

Tags: diesel engines technical issues

Similar questions

How can I fix the DPF fault on my Citroen C3 Picasso?

My Citroen C3 Picasso has completed 47,000 miles without anything major going wrong. But now I have a dashboard warning light saying "SERVICE" and a message which says "Engine Fault, Repair Needed". Just...

Does the 2010 BMW 320d use a timing chain or cam belt?

I have a BMW 320d diesel coupe. It is a 2010 model, can you tell me if it has a chain or belt?

What are the most common faults on the BMW 3 Series?

What are the most common faults on a used 2010 BMW 3 Series 320d? I am thinking of buying one and would value your opinion on this model.