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9th May 2012, 06:23 PM
#1
Cold start problem on 2.8 GU Patrol
Hi there.
Have a cold start problem with my '99 GU 2.8 Patrol. Always started just fine but has been getting worse over the last month or so.
She now take 2-3 goes @ 30 seconds or so of turning over before she'll start when cold/cool. No problems if engine is hot.
Have replaced Battery, glow plugs as well as air and fuel filters. Don't know Volts at busbar.
Have tried turning ignition on and off several times for glow plug light but makes no difference.
Read somewhere about installing an advance plate and 'o' ring under fuel pump? is this the next thing to try.
Any help gratefully recieved as i'm at the end of my knowledge of diesel engines.....
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9th May 2012 06:23 PM
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9th May 2012, 06:38 PM
#2
Expert
Do you put your foot flat to floor while turning over?
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9th May 2012, 11:16 PM
#3
Advanced
Hi. Try using the Air Bag light as the glow plug light. Turn it over when the Air Bag light goes out and see how you go. I have a 2000 GU 2.8 and if I crank it after the glow plug light goes out it takes a while to fire up. If I crank it after the Air Bag goes out it starts easy. I don't use accelerator. Worth a try, might save you some drama...
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11th May 2012, 09:16 AM
#4
Thanks for replies
1. have tried both foot to floor and off, doesn't seem to make much difference. Maybe slightly better with foot off? will try both out over the next few days.
2 Since having starting issues have been leaving ignition on longer in hope this would generate 'more heat' in glow plugs. at least until air bag light has gone off. Have even tried multiple sets of 'glow plug light' turns of the ignition.
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11th May 2012, 01:38 PM
#5
Smart like tractor
check your voltage at the busbar, before spending money or trying other things.
96 GQ coil/Cab
08 G6eT
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12th May 2012, 07:12 PM
#6
Ok, I've got 10.5V at the busbar under load.
She defiantly starts better if you keep your foot off the accelerator while she's turning over
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12th May 2012, 09:39 PM
#7
Mate all I do, after researching the car prior to buying it second hand, is wait til the airbag light goes off and start it (foot off accelerator).
If I ever experience any problems, the first thing I do will be placing the Nissan supplied spacer under the injection pump.
10.5V underload (ie cranking) is OK in my eyes, so the battery should be good.
Dave
99 GU 2.8 TD
Brisvegas, QLD
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13th May 2012, 08:40 AM
#8
I've heard of a rumor about 2.8 cold starts. Never witnessed it tho. It involves the pump and where it's mounted. A simple fix is mount the pump on a bracket situating it away from the surface. Pretty sure it's a heat sink/cold sink prob
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13th May 2012, 06:02 PM
#9
Advanced
I have always used the electric antenna instead of the glow plug light to time it, when it hits the lower setting hit the key (foot off accelerator), just had the timing belt changed and found that the fuel pump had been set to fully retarded, after advancing it back a bit it now starts alot better cold & hot
If at first you do not succeed destroy all evidence of ever trying
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14th May 2012, 03:29 PM
#10
Expert
Originally Posted by
Hippo
Hi there.
Have a cold start problem with my '99 GU 2.8 Patrol. Always started just fine but has been getting worse over the last month or so.
She now take 2-3 goes @ 30 seconds or so of turning over before she'll start when cold/cool. No problems if engine is hot.
Have replaced Battery, glow plugs as well as air and fuel filters. Don't know Volts at busbar.
Have tried turning ignition on and off several times for glow plug light but makes no difference.
Read somewhere about installing an advance plate and 'o' ring under fuel pump? is this the next thing to try.
Any help gratefully recieved as i'm at the end of my knowledge of diesel engines.....
G`day Hippo
I did the plate for a hot start issue but basicly my car was doing the same as yours here is a link to what i did i included pics of how its done aswell http://www.nissanpatrol.com.au/forum...ot-start-issue since doing this i havnt had a problem cost is around 45.00 and is a really easy fix
Theres only one thing tougher than my truck............. YES DEAR GOING TO DO THE LAWNS NOW
WARNING: Towballs used for recoveries,can and do kill people and damage property
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