Author Topic: 8v k-jet problem  (Read 1978 times)

Offline Mars Attacks

  • GTI forum regular
  • ***
  • Posts: 205
8v k-jet problem
« on: 18 November 2003, 09:48 »
strange one this one...

got a mate who has an 8v k-jet gti and he is having all sorts of problems with the running of it. Basically it starts ok from cold, but then starts to hesitate badly and misfire until its warmed up. then it runs ok. But after about 15 miles, you can hear the lift pump in the tank whining as if its pulling harder and as you slow down, the car starts to stutter and stammer until there is no acceleration at all and the car cuts out due to no fuel getting to engine. Strange thing is that if you stop the car and start it again, it starts again and all is well for the next 15 miles, then the same thing happens again. Its almost like a pressure has built up to a point where the car cant pump the fuel along the line anymore, and by switching the car off, it clears it, but i don't know. I would have said blockage in fuel lines, but as the fault clears after a restart, it sounds like something electrical. I do know that he has had a mess about with his idle and mixture/timing recently. It has had a new lift pump recently and new fuel filter.

Any clues as to what it is as he is avoiding driving his car at the moment. I say he should get to garage and get mixture and timing done first of all. anyone else had problems like this??

Offline M41K1T

  • GTI forum regular
  • ***
  • Posts: 141
Re:8v k-jet problem
« Reply #1 on: 18 November 2003, 10:16 »
Ive got the same prob with mine. Having real difficulty getting it sorted. don't really want to take it to garage, seems like it's gonna cost a bomb.

Offline Mars Attacks

  • GTI forum regular
  • ***
  • Posts: 205
Re:8v k-jet problem
« Reply #2 on: 18 November 2003, 10:41 »
what stuff have you tried so far? he has tried new fuel filter, new lift pump, but no joy yet.

old_boy

  • Guest
Re:8v k-jet problem
« Reply #3 on: 18 November 2003, 12:34 »
Hey guys,
sounds like the classic rust paticles in the tank problem!
I had the same prob on a mk1 gti and a scirocco.
what i did was determine what needed replacing to stop it happening again, (new filler pipe and/or fuel lines), then dropped the tank out from underneath and rinsed out with clean petrol.
There may be some small rust patricles that you cant get out, but all you do in this case is cut the strainer off the fuel pickup pipe in the tank and join onto it, a carb style fuel filter, which you have cut half the casing off one side, so ther is more surface area of strainer so less chances of it getting clogged.
hope this helps! ;)

Offline mk1mat

  • Not said much yet
  • **
  • Posts: 15
  • MK1 1800 Gti
Re:8v k-jet problem
« Reply #4 on: 21 November 2003, 17:29 »
I too have had this problem caused by rust in the tank, its very common on older golfs, oldboys advice seems spot on to me, good luck!