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GU 4.2 TD miss when cold

Tech Talk for Nissan owners.

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Posts: 13
Joined: Tue Apr 24, 2007 7:49 am
Location: Melbourne

GU 4.2 TD miss when cold

Post by Chambo »

Hi all, Just thought I might pass on a little annoying thing that I have noticed since recently buying the GU. In the morning when cold I like to use the hand throttle to give it another couple of hundred revs to warm it up. When I do this is misses on one cylinder for about 20 seconds or so. Couldn't say if it was the one or varying cylinders. If you don't use the hand throttle it doesn't miss at all. I wan't worried about it as I thought it just might be an injector not performing corrrectly until warm. Over the weekend I did the oil and filters and the miss has vanished. The problem obviously was with the fuel filter (nissan original). Perhaps is was bleeding down or sucking a little air round the seal or something. Anyway, all is good, I just thought I would share this in case anyone else has experienced the same. Cheers, Chambo
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Joined: Sun Mar 16, 2008 6:03 pm
Location: Hervey Bay

Post by GUpatrol02 »

same as mine
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Joined: Tue May 24, 2005 12:21 pm
Location: Brisbane

Post by Josh n Kat »

might also find a glow plug not heating up quite as well as it should
Honey i cut the car in half!
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Joined: Thu Aug 07, 2003 2:27 pm
Location: Mongol land

Post by GeneralFubashi »

i just put it down to a glow plug not working as well as the others also, but now that you mention it i might need to do some more investigation. I have changed the filter a few times over the last few years and that has done nothing, its definately heat related somehow, but i dont think its sucking air anywhere cause my miss is only on one cylinder.
Sam
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Joined: Fri Jun 29, 2007 7:57 pm
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Post by love ke70 »

my GQ does this for about 10 seconds on really cold mornings, usually a bit harder to start too.
i thought it was a glow plug issue, fuel filter might be due a change, thanks for the ideas :)

cheers, andrew
97 GQ patrol coilcab. TD42, safari turbo kit with fiddled turbo, D-GAS kit. dyno results to come...
4inch lift, king springs, efs and procomp shocks
315/70R16 cooper ST's
found fuel economy...
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Joined: Sun Jan 11, 2004 11:36 am
Location: Sunshine Coast QLD

Post by Mark2 »

Mine does it too, usually stops by the time the oil light goes out :roll
The rattle from the piston slap takes a bit longer to go away - maybe a couple of minutes.

New fuel filters didnt make a difference - I've always assumed its a glow plug issue, I have to wait until the glow light goes out and then a few seconds more for an instant cold start. As long as it keeps starting, I can live with it.
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Joined: Thu Jun 21, 2007 9:00 pm

Post by bop smoo gu »

My money is on the glow plug, try glowing it a couple of times.....this should reduce the amount of time it misses for, if so then 99% sure it will be the plugs
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