Engine Issue

[r32line]

Hey Guys,

I have just sent my car to the mechanic and he will be looking at it 2moro but i would be interested to see what you thought of the issue i am currently having.

Basically the car runs fine day to day and the only issue i have is that when the car is pushed it starts to rev fine, but then around the 3500 - 4000rpm mark its struggles to rev and feels unwilling to rev (almost like petrol is not gettin through properlly) and then towards 5500 - 6000 it seems ok again. But my friend and i drove it the other nite and he could tell straight away (also a 32 owner) and im starting to worry.

It has been this way for a while but because i dont rev beyond 3500 too often i didnt pay much attention..

So yeah, any ffedback appreciated

[cogs]

Probably best to do a search but from memory this problem can be coil pack related, so might be worth testing them.

[r32line]

Oh ok, i was thinking it would not be a major problem as in general the car is fine and the problem is only under hard driving in that specific rev range as i said. My main concern that it was not major as in like a few cylinder loosing compression and a possible critical problem in the block. But i guess i just wanted assurance...

cause wen i want to drive faster now i generally drive to 3500 which its fine to and then change, but in first gear off the lights its more likely to rev clean right through to 6500rpm and the problem happens more in 2nd, 3rd, 4th

[Medium Dave]

I think there ia a tutorial, mabey sticky about the coilpacks cracking due to heat, check it out

Here tis'

http://www.skylinesaustralia.com/forums/in...showtopic=32356

Edited August 24, 2006 by Medium Dave

[98si]

  r32line said:

Oh ok, i was thinking it would not be a major problem as in general the car is fine and the problem is only under hard driving in that specific rev range as i said. My main concern that it was not major as in like a few cylinder loosing compression and a possible critical problem in the block. But i guess i just wanted assurance...

cause wen i want to drive faster now i generally drive to 3500 which its fine to and then change, but in first gear off the lights its more likely to rev clean right through to 6500rpm and the problem happens more in 2nd, 3rd, 4th

I had the same problem with my r32 gtst. To fix it I made put the timing forward, the tiniest bit. and the problem was gone.

I checked all my coils and plugs and they were fine so this was a last resort.

It worked. *shrug* dont ask me why.

hope this helps

[r32line]

  Medium Dave said:

I think there ia a tutorial, mabey sticky about the coilpacks cracking due to heat, check it out

Here tis'

http://www.skylinesaustralia.com/forums/in...showtopic=32356

Hrrmm after reading this im not sure this would be my issue, ad the car only has a 3" cat back and pod filter...otherwise stock and has been all its life, i bought it in original nick with not a thing touched, and its never been boosted which seems to cause the problem with the coil packs due to the increased temp

[r32line]

  98si said:

I had the same problem with my r32 gtst. To fix it I made put the timing forward, the tiniest bit. and the problem was gone.

I checked all my coils and plugs and they were fine so this was a last resort.

It worked. *shrug* dont ask me why.

hope this helps

Actually its interesting you say that, because my mate when i got the car helped me do first service and was suprised at the position of the timing as he used to hav a 32 and knew a bit bout them and did a lot of work on his car. Ill mention it to mechanic..

[r32line]

Also I have noticed when the car is just started (cold) and then driving it is more noticeable, it just seems really unwilling to rev, its like ur asking to much and the fuel is just sputtering in as u build up some revs so i dont push it, but i know when i tested it (a year ago when buying) we cold started and it was more than happy to rev hard and it pulled hard and quick, i dont know what spark plugs the mechanic put in it last time also he didnt use synthetic oil (which he will this time after i asked him to) but i doubt thats related

[r32line]

Well after driving it my mechanic felt the flat spot straight away and put an additive in the fuel to try clear out a possible blockage or the injectors which cost $15. Now its back to its best, revs out cleanly all the way to redline now