I have a vauxhall vectra 2001 1.8 sxi, im having problems accelerating unless i floor it. otherwise it judders really bad in 2nd and 3rd, it is pulling back terribly and my oil pressure light is coming on whilst im driving? any ideas?

have you checked the mounts

it can be a faulty battery in the alarm unit. when the battery is not charging for whatever reason it send a trigger and the alarm will set off. has been a problem on some vauxhalls over the years. would have it checked out as it can get worse.

it may be from failing engine mounts allowing the engine to misalign the drive shaft under acceleration and allowing problems in the cv joints or "U" joint

not said year could be the cam and crank sensor. also you not said what gear box you have auto or manual. auto its down to having a ecu problem with it being in limp mode. manual it will be the same but more manageable with your onwn gear changes.

check the pivot pin for the gear lever at the turret at the top of the box. you can check the shift rail operation her if you take the turret section and gear lever of the top of the box.

run the fault codes and check for injector and fuel pressure problems

starving for fuel need filter.

my vectra c heater blows out hot for a while then goes cold but when u speed up it gets warm but when goes idle get cold any help

ive got same problem with my car