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Valve Float Or Not?


Mvour.au

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  • Member
  • Member For: 15y 5m 19d
  • Gender: Male
  • Location: Gold Coast

Hey guys,

Yesterday while I was driving to a mates place I was stopping at a traffic light and shortly after I had stopped the car began to what seem like it dropped a cylinder, so I pull over, let it sit there for a bit nothing happens still seems to be running on 5 cylinders, so I turn it off.

I leave it for a couple min's turn it back on everything seems fine, take off slow down to go through a round-a-bout, same thing car feels like its running on 5 cylinders.. after pulling over again, turning it off and on and letting it idle for a bit I drive all the way home (20kms) with no dramas at all..

The strange thing is that the car didn't rev over 3500 rpm the whole trip. now from the research I have done valve float doesn't seem to happen unless the cars been driven quite hard??

It's a BF mk1 xr6t 6sp auto. Has anyone heard of this happening? or am I right in assuming its valve float?

Thanks

Edited by Mvour.au
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  • Member
  • Member For: 15y 5m 19d
  • Gender: Male
  • Location: Gold Coast

float is usually only after pulling up after a good hard drive ,

that's what I thought. Damn I've been driving the car for the last 2 days since it happened and hasn't done it since..

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  • Member For: 17y 8m 25d
  • Gender: Male
  • Location: Brisbane, Queensland

could possibly be a fouled plug that will only play up at a certain point..

could also be faulty coil packs...

possibly even a faulty fuel pump

Edited by The_Bogan
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  • 2 years later...
  • Donating Members
  • Member For: 12y 11m 14d
  • Gender: Male
  • Location: Sydney/Wollongong

I had this "5 cylinder" feeling once and it turned out to be a loose injector harness plug..The locking pin clip was missing and it had alot of movement over bumps etc... Worth taking a quick look at them ( Even the ones under cross over pipe as they get bumped the most).

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