its broken

[squires]

i have a mk2 89 reg golf gti 8v, and have been having problems with it, when im driving it sometimes starts missfiring so bad tht if i put my foot on the pedal full down it will jus miss an backfire, and a very loud whining noise comes from the back, if i tutn it off and leave it for a abit it clears up then it all happens again.
i suspect its the main fuel pump or lift pum but has anyone had any similar problems or better ideas?
i have changed the dizzy cap an rotor arm and plugs, i dout its electrical as the whining noise only starts when it breaks down thn goes when its all cleared up.

any help much appreciated as iv only had the car 1 month now and only used to classic minis lol
cheers lee

[squires]

forgot to add it also takes about 10 seconds to start of the starter since it started playin up

[Jay]

It could well be a fuel pump issue by the sounds of it, but more importantly MK2's are taking over the classic mini world 

[squires]

well i sold mine for one, woud of got one in the first place but needed to get a years no claims first as i was 19 to. jus gotta figure which pump now

[Simeon]

Disconnect the main pump either by removing the fuse or pulling the plug out of it and turn the ignition on - should be able to hear the lift pump prime up. If not, replace it - easy job and much cheaper than the main pump.

[squires]

iv found out if i keep it above a 1/4 of a tank its fine so its deffo the lift pump, havin trouble loggin on to this site taken me 2 days, norm comes up with page not displayed