engine ? wobble

[zombie]

hi dont know if this has been covered but my c5 138 vtr diesel estate has developed a wobble , i first noticed it about 2000 miles ago whilst driving in italy the best way i can describe it is when under heavy load the engine /gearbox wobble side to side making ur legs wobble as well it is only in peak power ,it is much more noticeable when towing the caravan , i am pretty sure the engine is sweet and not misfiring or anything and have no warning lights on. is it just a mounting

[Timmo]

id start by looking at the engine mounts, if its under load then could be something simple like that, - hopefully!!

[Peter.N.]

..or the power could be down on one cylinder, injector?

Peter