loud hising noise coming from Turbo
 

Hi people,
I am new to this forum , I have an 03 audi a4 1.8t, and previously when I start the car in the morning, it sounds like it will take off. lound noise coming from the engine, but then it would go back to normal.

Today, while driving the car the noise got louder and louder that it attracts the attention of the pedestrians. It would be when i am accelerating, and it would die out ( cut off to be exact) when I step on the gas.

tonight driving home, while on the QEW i could feel that the car didn't have alot of power, and the turbo wasnt kicking in. just the loud noise again.

anyone know what it could be.? how much am I in for?

Re: loud hising noise coming from Turbo
 

if it sounds anything like a dentists drill, looks like a blown turbo. or could be one of you inlets is cracked. But either way sense you dont feel like you getting boost its turbo issue. I suggest taking it in to the shop asap!!!!

Re: loud hising noise coming from Turbo
 

will go by tomorrow. any idea how much it would cost

Re: loud hising noise coming from Turbo
 

I had the same thing happen to me. Did the check engine light come on?
For me i had to keep the revs really high so i could drive the car. Turns our there was a vacuum leak.

I think it was call a brake vacuum booster valve that i had to replace

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The pump/valve was $57

Re: loud hising noise coming from Turbo
 

No check engine light on. @ the dealer now I hope it will b the vacuum leak. Will post update

Re: loud hising noise coming from Turbo
 

so waht is it, if its turbo, i sugest you get a k04 upgrade its not that much more but alot more power in the car and higher resell value. :D but thtas going to be alot of money.

Re: loud hising noise coming from Turbo
 

It was a blown turbo according to the dealer. will cost 2.088 ouch!!
called a few independant mechanics and they quoted me 1900 $ with a rebuilt turbo. Thought should do it at the dealer just in case goes awry later on.

Tks to everyone who replied

Re: loud hising noise coming from Turbo
 

yeah bro, check independent tuning and h2sports bro. I recommend getting a turbo upgrade while you at it. It wont be much more then that, and if you resell the car, you can get some nice price for it after. And the extra power is very nice.

Re: loud hising noise coming from Turbo
 

if its out of warranty, K04

if it is not, dealer.

/end topic

Re: loud hising noise coming from Turbo
 

how much more would the KO4 run?

Re: loud hising noise coming from Turbo
 

APR - High Performance Development for Audi, VW and Porsche Vehicles.

check with RPI equipped for some idea and other shops thats been mentioned.

We can suggest options, but whatever your comfortable with, no pressure.

Re: loud hising noise coming from Turbo
 

I got a problem with my car. 2003 A4 1.8T. Had the Turbo installed last month at the dealer along with the adjustment of the timing belt because they said it was unbalanced. Anyway, I feel like the turbo is not kicking in, it kicks in and then cuts off for some reason.
Investigated the problem and found that the engine gets really hot...So I changed the Catalytic system and put a whole custom made pipe on the car. Still no power as much as it should be.
Also noticed some coolant leaking from the turbo pipe. Can anyone advise if it's just a shitty turbo that the dealer installed or something else

Re: loud hising noise coming from Turbo
 

Well you said that the dealer installed the turbo so i would go back and tell them to look at it. You payed the extra money for them to do the work so get them to look at it again if you are not happy with the pick up. as for the coolant leak i would have to say it is a washer or seal that was not put on proper so it is now leaking a little bit.

I would take it back to teh dealer and get them to look at it as it should have come with a garantee

Good luck

Re: loud hising noise coming from Turbo
 

i got one on ebay for $300 brand new including shipping