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Fan comes on after start Air Leak

Meeson

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Hi all

Own RCZ GT 2010 Modified, beautiful example low miles and love it.

Hi, Need help?

I own an RCZ GT-Great car 2010 and has the new style front. This was done by some prior owner after the car was stolen some years ago, 'before me'. it was involved in a front end crash, hence the updated front.

After a while the engine fan came on after start and stayed on some time after turning off-draining the battery. A new manifold was replaced as a split in the original one was identified. (can only assume this could be a result of the front end crash) My mechanic checked a host of pipework when he replaced the manifold and is at a loss as to why the engine management system is coming back on after clearing it and presenting the same code (Vacuum leak) taking in too much air?
Causing it to run lean as confirmed by Peugeot diagnostics, however the Peugeot dealership want to strip the front end down to try identify the cause at an enormous cost.

Any ideas or anyone experienced this-how was it resolved. Desperate now to figure this out. Car has low mileage 57k with a full history and excellent condition.

Can anyone help! I am a professional high profile photographer and will offer a free day shoot to anyone who can resolve this wether corporate or personal.

www.photographyconsulting.co.uk
 

Verminator

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The fan comes on from start up cold and constantly runs was down to a faulty fan censor other posts on the forum about it...
Hope this helps you out
Drive safe and stay lucky 🍀
Les n Co
 

Jumper

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Not sure if you have resolved this but I had a similiar problem with a code showing unmetered air after I changed the rocker cover. Fans on all the time while driving and stayed on for about 10 mins after the car was parked. I had a pipe loose on the PCV that I forgot about and had to re attach it but the problem remained. Anyway I read some where that after sorting out air leaks you need to drive the car around 50 miles or so, so the ecu can read the correct air flow. So I ran up the M6 to Preston and back and when I got home the cars fans stopped and its been fine ever since.
(I'm also a keen line side railway photographer)
 

Meeson

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Hi

Thank, unresolved still all pipe work allegedly checked and after around 50miles fan back on again. I have had to book it in with a specialist 26th April and will report back on findings.
 

Pedro

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Maybe a Vacuum leak I had a issue with the Air filter pipe so installed a K&N free flow filter & it still persisted I changed the Map sensor & cleaned the Maf sensor & not had any codes since but Vacs are a case of air being sucked into the intakes which are sometimes hard to pin down poss need a smoke test if that's the issue
 

Meeson

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Thank you, that is exactly what the code is pointing to Vacuum Leak? Seeing a specialist on 26th fingers crossed.
 

Meeson

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Update re Vacuum Leak thread. I never made it to the specialist for various reasons, However my wife used the car as hers was in for repair after putting petrol in a diesel Mercedes, she then went on to put diesel in my RCZ petrol, only £10 worth.
Her fathers friend of 78 yrs of age a former Consultant Engineer for Cummings (Peugeot) was called in to help. We filled the tank with petrol to dilute the diesel and after filling my street with smoke it began to settle. He then connected his American made diagnostic equipment whilst the fan was of course running as usual. selected the option Mini Cooper engine, which of course it is, clear the faults and low and behold the fan stopped racing.
I have driven oer 200 miles since and no fan problem.
So could it be that the garage used before selected a different option? Perhaps all diagnostic computers are not the same.
All I can say is the problem has gone-thank go. So anyone with an identical issue my story might help.
Thank you all for your responses which I FOLLOWED AND PASSED ON TO MY GARAGE.
 

Ecrivain

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Excellent news! I hope you aren't going to tease her for the petrol/diesel error(s!), now...? :)

A suspicious person might think that the garage didn't clear the faults because they needed the work. But maybe not - these things are complex...

Good luck with it - I hope you continue to have trouble free motoring.
 

Pedro

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Update re Vacuum Leak thread. I never made it to the specialist for various reasons, However my wife used the car as hers was in for repair after putting petrol in a diesel Mercedes, she then went on to put diesel in my RCZ petrol, only £10 worth.
Her fathers friend of 78 yrs of age a former Consultant Engineer for Cummings (Peugeot) was called in to help. We filled the tank with petrol to dilute the diesel and after filling my street with smoke it began to settle. He then connected his American made diagnostic equipment whilst the fan was of course running as usual. selected the option Mini Cooper engine, which of course it is, clear the faults and low and behold the fan stopped racing.
I have driven oer 200 miles since and no fan problem.
So could it be that the garage used before selected a different option? Perhaps all diagnostic computers are not the same.
All I can say is the problem has gone-thank go. So anyone with an identical issue my story might help.
Thank you all for your responses which I FOLLOWED AND PASSED ON TO MY GARAGE.
The Fan will come full on with numerous Engine code faults its the ECU stopping damage to the Engine by overheating that code may have been stored in the memory & has been triggered by another issue but has been rectified by the ECI BSI modules that's how they track fault data Good to see your sorted at last;)
 

Jumper

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Update re Vacuum Leak thread. I never made it to the specialist for various reasons, However my wife used the car as hers was in for repair after putting petrol in a diesel Mercedes, she then went on to put diesel in my RCZ petrol, only £10 worth.
Her fathers friend of 78 yrs of age a former Consultant Engineer for Cummings (Peugeot) was called in to help. We filled the tank with petrol to dilute the diesel and after filling my street with smoke it began to settle. He then connected his American made diagnostic equipment whilst the fan was of course running as usual. selected the option Mini Cooper engine, which of course it is, clear the faults and low and behold the fan stopped racing.
I have driven oer 200 miles since and no fan problem.
So could it be that the garage used before selected a different option? Perhaps all diagnostic computers are not the same.
All I can say is the problem has gone-thank go. So anyone with an identical issue my story might help.
Thank you all for your responses which I FOLLOWED AND PASSED ON TO MY GARAGE.
Fabulous glad you sorted it out eventually
 
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