Tag Archives: fault code

Peugeot Boxer Timing Chain Noise

This Peugeot Boxer had a serious engine noise and an engine management light on when it came to us for Service.

Firstly we had to diagnose whether it was from the engine internals or auxiliary items such as air con compressor water pump etc.

Once we had determined it was indeed from the engine we needed to strip down to find out what was causing the noise

After removing the timing chain cover it became pretty obvious what was causing the noise, the chain had stretched so much that the adjuster was fully out and the chain was still loose.

Peugeot Boxer Timing Chain Stretched

After removing the chain we compared it to the new chain and it was a full link longer, the teeth on the crank gear had become rounded and all the chain guides were starting to break apart (debris in the sump).

When we fitted the timing tool to the engine prior to removing the chain we could see that the stretched chain had allowed the timing of the engine to be out by a full tooth.

With the new timing chain kit fitted to the engine and all debris removed we treated the engine to a new oil filter and some fresh oil and gave the key a turn.

The difference was night and day, the engine ran smooth with no worrying clattering and rattling just ticking over like it should.

A quick code scan with our diagnostic machine tells us that all the fault codes relating to the stretched timing chain have gone.

Time for a good road test, final check and hand back to the customer.

Aarons Autos car service garage.

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Give us a call at Aarons Autos for more info.

Audi A1 1.4 TFSI Timing Chain Fault.

This Audi A1 TFSI came into us with poor running, noisy and the engine management light was on! We carried out a diagnostic code read to find the reason for the EML light to be on which gave us several codes relating to an incoherence between the cam and crank shaft sensors.

The next step was to partially strip down the engine on the Audi to access the timing chain, once stripped we were able to see if the timing marks for the chain lined up with our specialist timing tools, then check for any signs of stretching or damage to the chain and gears.

In this case it was quite obvious, once the timing chain cover was removed we could see that the chain had stretched so much that even at full extension the chain tensioner couldn’t tension the chain, thus causing the timing marks to be miss aligned.

We sourced a new timing chain kit and tensioner for the A1 and fitted it making sure to check all timing marks were lined up as per factory settings, then rebuilt the engine using new gaskets, oil filter and some fresh oil.

After the rebuild we cleared all the existing codes relating to the timing issues and tested the engine which sounded nice and quiet compared to when it came in to the garage, the engine management light stayed out and all sensors read as they should.

Lastly we carried out a long road test before handing it back to a happy customer.

This seems to be a common fault on this 1.4 TFSI engine which is fitted across the VAG group of vehicles, VW, Audi, Seat and Skoda.

If you would like any more information give us a call on 01332 205070 or drop us an email at dave@aaronsautos.co.uk