Juddering Issue

[pfoster77]

Hi

Wondered if anyone has any suggestions. I have a Porsche Cayanne and the vehicle shudders on idle and when trying to put power but ok for power when over a certain RPM.

Glow Plugs?
Injectors?
Something Else?

 

[Andydevon]

Worth checking Engine or gearbox mount as a start

 

[Burnerman]

Before visiting a fuel injection specialist.....
Try a bottle of Forte Injector Cleaner in the tank and run the car in Sport mode.
Look for any trace of black smoke at the exhaust when the misfire seems to be apparent.
Has the engine management light ever flashed?
John

 

[pfoster77]

Before visiting a fuel injection specialist.....
Try a bottle of Forte Injector Cleaner in the tank and run the car in Sport mode.
Look for any trace of black smoke at the exhaust when the misfire seems to be apparent.
Has the engine management light ever flashed?
John

Ok thanks
No the Engine Management Light Isn't on and have scanned and no codes relating to engine at all logged. But have noticed that the glow plug light as started flashing.

 

[carmanmemoranda]

Ok thanks
No the Engine Management Light Isn't on and have scanned and no codes relating to engine at all logged. But have noticed that the glow plug light as started flashing.

Needs a better scanner if glow plug light is flashing, there will be codes there.

Way too many possibilities to guess at an answer from the info given

 

[Burnerman]

I think this will be the V6 Tdi motor of VW fame?
For sure, injection problems (and the loom to them) aren't unknown......bet this one hits the piggy bank though.
John