craig245t Posted February 13, 2010 Report Posted February 13, 2010 Hi all My 2000 1.9 TDi (110bhp) PD engined Galaxy has developed 2 problems. I've had a search but can't pin it down. The car has started to hesitate under light throttle, if you give it more gas it picks up and goes. This happens both cold and warm but most noticably in 1st and 2nd - not sure why. I had the same symptoms about a year ago with a VAG COM fault "coolant temp sensor - open or short circuit". I replaced the coolant temp sensor on the back of the block and the fault disappeared. This was accompanied by the car going into limp home mode when you drove it hard. Using this forum I freed off a sticky turbo vane actuator (thanks to all who posted) and the car has been great. The second fault which may or may not be related to the first is this. Only when the engine is cold, when you come of the throttle to change gear there is a whoosing / whinning / air being restricted type noise. VERY hard to explain. I'm convinced this is linked to the turbo and only happens 5 or 6 times then won't do it again until the engine has been sitting for a few hours. I know these turbos don't have wastegates - does anyone know how or where they dump pressure when you come of the throttle. I know you shouldn't jump to conclusions when fault finding but i'm convinced it's turbo or turbo ancillaries related. I've checked for split hoses and can't find any but cannot find the n75 vaccuum valve i've heard mentioned. I only have the free version of VAG Com which doesn't do everything but no fault codes are logged. Is there anyone near Edinburgh with VAG COM that knows what they're doing. Thank you in advance for any advice offered. Thanks for taking the time to read this....... Quote
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