Year of Manufacture *: 2002
Engine Size and Code *: ARL PD
( Optional ) Scanner Used: KTS
( Optional) Fault Codes: None
GOLF GT TDI
VIN:WVWZZZ1JZ3W053796
ENGINE:ARL 150bhp PD
FIRST REG:26/07/2002
MILAGE:120,000
Hi
This Motor has this intermittent engine noise, when the noise is present it is so load it will turn heads!! The only way I could describe it is that it sounds like a motor with a big end gone or something on top of a piston; it also runs a bit light on a cylinder(only when knocking). when it knocks it does sound really sick, but It comes and goes with no rhyme or reason.
The first time I heard it was when the customer dropped it off, it was only very slight, the next day I drove 20 miles with no problems it drove perfect, left it for around an hour started it you would not believe the noise.
It stayed like this for some time (around half an hour in the workshop), no fault codes are stored or present, the one thing that I did notice on live data is that when it is making a noise injector smooth running compensation on number 2 cyl goes from 0.65 to 2.16 mg/S all the others stay the same.
It should be noted that at no time does the engine smoke, it starts first time on the button and when it is ok it is as sweet as a nut.
I have checked compressions when it is making the noise and when it isn’t, they are consistently good.
I have removed cam cover to inspect cam ect and all looks fine.
Could it be an injector? Anyone replaced these for being noisy? (Can they make that much noise?).
I just can’t understand why one moment its makes this horrendous noise and then it just goes smooth & quiet.
If it was making this noise all the time I would have no hesitation in pulling engine apart, but at this time I am a bit reluctant, because I am not sure that I may find anything!
So Guys,
Where do I go from here? Anyone had a similar experience?
Look forward to your comments and inputs, any help would be much appreciated.
Many thanks
Lindsay Flaxmer