Drive train shunt

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
ChrisH2017
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Re: Drive train shunt

Post by ChrisH2017 » Mon Jan 16, 2023 8:18 pm

Ok will have a look. One thing I have noticed occasionally recently is when getting out of the car after a drive a quite strong petrol smell from the drivers side, near the filler cap, but maybe from underside somewhere. Didn't think it was related, but maybe..?

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Shoppinit
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Re: Drive train shunt

Post by Shoppinit » Mon Jan 16, 2023 9:02 pm

Could be. You shouldn’t be smelling petrol.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

Astrosquirrel
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Re: Drive train shunt

Post by Astrosquirrel » Mon Jan 16, 2023 9:30 pm

Could it even be the fuel filter?

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Shoppinit
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Re: Drive train shunt

Post by Shoppinit » Mon Jan 16, 2023 10:39 pm

Could be. If it’s never been changed. I would think the problem would appear more consistently if it was due to poor flow though.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

ChrisH2017
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Joined: Fri Oct 20, 2017 8:40 pm

Re: Drive train shunt

Post by ChrisH2017 » Mon Jan 16, 2023 11:32 pm

Yes, I would be surprised if it was a fuel issue as it still goes like a stabbed rat, even when it's jolting, the jolts seem slightly worse when on throttle but not massively so. If it was fuel releated i would expect it to be much worse when on throttle. I will do checks around the pump and filter to see if there is a problem, would be good to get any leak fixed anyway. I am lean towards some.other driveline issue, maybe a cv joint or diff? It's very odd.

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Shoppinit
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Re: Drive train shunt

Post by Shoppinit » Tue Jan 17, 2023 8:43 am

Check around the fuel pressure regulator. That’s a potential point of failure.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

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