Question about 2001 Volkswagen GTI
Hi, the only real way forward is to get the fault codes read from the on-board diagnostic system. In the meantime, you could check for clogged /loose / fallen off vacuum pipes and splits in the intercooler pipework.
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Posted on Jul 11, 2008
Hi if your boost gauge is still showing that there is boost pressure, but you cant hear the turbo working. there are two hoses behind the engine by the turbo the thinner vaccume hose is right by the down pipe and can easily be damaged by the heat from the exhaust. or due to the heat it can stretch and slide out from under the hose clamps the best solution is to purchase a samco boost hose kit they cost around $220.00 to $240.00, and will most likley be on backorder for 6 to 8 weeks nomatter where you buy it from because the Mk IV gti is getting old and the demand isn't what it once was. the cheaper solution, and the solution I used on my car was to spend $1.79 on a 4 pack of hose clamps at the hardware store and reattatch the hose while I wait for my boost hose kit. it will also help to buy exhaust wrap tape wich insulates your downpipe and keeps heat away from your engine, and turbo hoses. I hoped this helped. If your boost gauge isn't showing any boost i am not sure what to exept examine the whole enging compartment while the engine is running and feel along all of the hoses looking for a leak. depending on your mileage on the car you could just need a new turbo charger. the cheapest I have found them is at www.kineticmotorsport.com a new borg warner K03 sport is $798.00 and about $40.00 more with the instalation hardware. they also have the K04, and K05 but you need to upgrade a lot of other engine componants to handle the larger boost.
Posted on Nov 13, 2008
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Posted on Jan 02, 2017
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