Injector Servicing

Submitted: Saturday, Apr 04, 2009 at 00:23
ThreadID: 67502 Views:1776 Replies:2 FollowUps:3
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Hi all,

I have a 2004 Patrol 3.0 ltr with 110,000km, when should I look at injector servicng and who can you recommend in Sydney. Am currently getting 9.5 to 10 km per litre around town.

Look forward to your response

Rob
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Reply By: Member - Malcolm (Townsville) - Saturday, Apr 04, 2009 at 08:13

Saturday, Apr 04, 2009 at 08:13
Hi Rob

I have a 2005 GUIV with 112K. During my motor rebuild I took the injectors to a Bosch Service Agency. They said they could only do a limited test, pressure and spray pattern. All was OK.

That fuel consumption around town is excellent. I get that on the highway.

What makes you think you need the injectors tested?

More importantly I would do the following:

fit EGT and Boost gauges, (so you can monitor heat buildup in engine when under load).
clean the MAF (on side of air cleaner hose) with CRC MAF Cleaner. You need a special Torq wrench #20 IIRC.
Remove the Inter Cooler and degrease the inside with degreaser. Thoroughly dry before fitting again. You'll be amazed how much oil gets trapped inside.
Only use genuine Nissan air filter.

Malcolm

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Follow Up By: Patrol22 - Saturday, Apr 04, 2009 at 08:45

Saturday, Apr 04, 2009 at 08:45
Just out of curiosity Malcolm does this engine have Piezo injectors....if so I'm guessing that "servicing" is at much larger intervals than 100K or even 200K if at all. Given that this type of injector is a composite piezo wafer do they need servicing at all?
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Follow Up By: Member - Malcolm (Townsville) - Saturday, Apr 04, 2009 at 10:15

Saturday, Apr 04, 2009 at 10:15
Patrol22,

you are most probably correct - 'do they need servicing at all?".

Nowhere in my workshop manual (gregorys) does it mention anything about these injectors needing service.

Malcolm
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Reply By: robb1964 - Sunday, Apr 05, 2009 at 22:04

Sunday, Apr 05, 2009 at 22:04
Hi Malcolm,

Thanks for your informative reply, I was only assuming the injectors needed servicing at some stage as with previous older diesels I have owned there was always the need to service at usually 100,000 km. I will investigate under the bonnet with your suggestions for the maintenance tips you offer.
Easter Friday We (family) are off to Taree for 3 nights stay at my dads, then camping 4 nights at Emerald Beach Caravan Park, cannot wait to hit the road, have a great easter,

Cheers Rob

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Follow Up By: Member - Malcolm (Townsville) - Monday, Apr 06, 2009 at 12:19

Monday, Apr 06, 2009 at 12:19
Enjoy your holidays ...
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