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Noise from my 996 on a cold start up! Please help

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YOUR RESEARCHNoise from my 996 on a cold start up! Please help

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POST 1 / ORIGINAL POSTEROriginal post

Hi. I have recently purchased a 996 C4 and love the car apart from the money I have spent on it so far! I have noticed that when I start the car up from cold there is a sound from the rear of the car which is quite loud. only way i can describe it is it sounds like a loud fan type noise which last for 1 or 2 seconds and then goes? It hasnt effected the running of the car and is only from stone cold. if the vehicle is running for a minute or 2 and turnt off andstarted back up this wouldnt happen. I know its a long shot that anyone may know the cause. I am booking the vehicle into Porsche Bristol this month for a service and new spare key so will ask them the question.... many thanks Matt

POST 2Original post

Secondry air pump, not an issue at all and perfectly normal. When you look into the engine bay you'll see a black pump on the LHS of the airbox. :thumb:

POST 3 / ORIGINAL POSTEROriginal post

thanks for the reply! and the answer! will it need replacing or will it just stay like that (doesnt bother me) any idea of cost? easy to fit? thanks again Matt

POST 4Original post

Nope, it's doing it's job properly, have a read of this but ignore the flux stuff http://www.911uk.com/viewtopic.php?t=36026&postdays=0&postorder=asc&highlight=air+pump&start=0 :thumb:

POST 5 / ORIGINAL POSTEROriginal post

thankyou for your help Stuart. You've been a great help! Many Thanks Matt

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