Isuzu Trooper Owners Club UK™

Chris B · Posted: Sat Aug 09, 2008 18:39 Post subject:

Hmmm ... interesting reading Shocked

mine has a little lumpy idle now and again but it seems to be fading as I "work it a little" Laughing

Hopefully mine will be in for its injector tighten this week and as a precaution will have the dealer check it on TECH2 and I will switch the filters (just incase the used car dealer skipped em on the service).

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greasemonkey · Posted: Sat Aug 09, 2008 19:00 Post subject:

If its getting better the more its 'worked' then its going to be sooted or coked up - a diesel should be driven up to a good amount of revs before changing gear - this does not effect the MPG as the main benefit of a diesel is the cruising MPG - revving to a good RPM keps the exhaust system from the manifold back at a good temp thus not letting particles stick or stay in the system - even a low revved diesel can eventually be purged and start to run at peak effeciency again
cheers
Steve
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Isuzu Vehicross 3.2 V6 The Silver Bullet

AD · Posted: Sat Aug 09, 2008 19:21 Post subject:

From experence modern diesel engine's which run high injector pressures do not get sooted or coaked up when not running at less than half rated power for long periods.

For example i run two tractors on a post knocker (fencing) the tractors run 8hrs/day at idle, but get a good floggin between jobs, one tractor has a John deere 6cyd and has done 2200 hrs, with standard injector system the other has a Deutz 6cyd done 7500hrs, with high pressure injector system (not common rail) the John deere engine gets very smokey by the end of the day, but clears after 10-20mis of hard work, the deutz engine runs clean all the time, even at 2days at idle, i recently done the head gasket on this engine and there was very little carbon deposits on the head, valves and ports.
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2011 3.0l Hilux Invincible
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rallymarshall · Posted: Sat Aug 09, 2008 20:00 Post subject:

we have the same trouble with the case tractor at work, on the feeder 7 days a week at about 1400rpm, doesnt do any hard work, once a month i put it on the slurry stirrer and for 5 mins it wont rev flat out and realy throws the black smoke out, then it gradually clears and runs clean after
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65 vauxhall mokka 1.6cdti 4x4 se
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eithan h · Posted: Sat Aug 09, 2008 21:00 Post subject:

i am going to be very surprised if this problem is due to being sooted up, the injectors run about a 7 stage injection process and are coded to the ecu like the trooper so it knows the grade and how much to inject for how long to keep emissions low, and it certainly won't be effected by loads of different drivers.
it could even be down to the variable vane turbo maybe they are stuck in a position where it causes lack of air hence the black smoke and rough running.
these really need to be on a tech2 for diagnosis there is 3 times more info to be looked at than the 3.0l trooper plus they have 2 check engine systems as well, they aint easy to diagnose but luckily they don't go wrong very often this chap has just been really unlucky!

dxmedia · Posted: Sat Aug 09, 2008 21:04 Post subject:

Also company cars aren't remound for being driven lightly Rolling Eyes

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greasemonkey · Posted: Sat Aug 09, 2008 22:09 Post subject:

Fine maybe instead of poo pooing all my suggestions you could advise the guy i'll just keep quiet then and wait until you suggest and poo poo yours instead
cheers
Steve
_________________
Isuzu Vehicross 3.2 V6 The Silver Bullet

dxmedia · Posted: Sat Aug 09, 2008 22:14 Post subject:

AD · Posted: Sat Aug 09, 2008 23:48 Post subject:

Chris B · Posted: Sun Aug 10, 2008 9:00 Post subject:

**puts mod hat on**

Back on topic please guys Exclamation

jonathan63 · Posted: Sun Aug 10, 2008 9:59 Post subject:

i would take it back to the dealer as it is under warranty and tell them to put it right if thay dont,,, phone IM Group Isuzu head office and talk to customer relations and tell them the dealer is usless and you want your trucks putting right

Chris B · Posted: Tue Aug 12, 2008 17:31 Post subject:

Sub sent me a PM..

AD · Posted: Tue Aug 12, 2008 17:52 Post subject:

Chris B · Posted: Tue Aug 12, 2008 20:38 Post subject:

As far as I know its the injector clamp bolts on some were not quite as tight as they should be and its just a case of re-torque them.

SUB · * Joined: 02 May 2004 Posts: 32 Location: Jersey

Just to keep you all up to speed with the Rodeo engine problem. I've found out that the part ordered is called the 'suction control valve' & has been chosen for replacement by the Isuzu's technical's recommendation. Will post info when the work has been done & we can see how the vehicle performs.

Cheers all

Sub.