Go Back   The Navara Forum > D22 > D22 Engine

Reply
 
Thread Tools Display Modes

ZD30 loss of power up hill
  #1  
Old 10-12-2017, 04:19 AM
someguy360 someguy360 is offline
Junior Member
 
Join Date: Mar 2017
Location: Adelaide SA
Posts: 14
Default ZD30 loss of power up hill

Hi Guys,

I've had my ZD30 Navara (180,000km) for around 5 months now and am loving it, it's by far the most reliable daily i've owned and is my first experience with Diesels.

I've noticed over the past few weeks my Navara is struggling a little going up hills, I used to be able to take the freeway home (which is on an incline) at 90-100km in 5th and it would pull. However now I'm finding I'm struggling to get over 70-80 in 5th and am having to drop to 4th and load the engine up. I also towed a boat (around 950kg with trailer) up to our shack a few weeks back and seemed to struggle to do 100 on flat ground once again without dropping it to 4th and loading it up to around 3400rpm.

I've chucked a boost gauge on it and it seems to be maxing out at around 12.5PSI (not sure what these are meant to pull under load).

Anyone got any ideas on what I should be checking?

(I've changed the air filter and fuel filter which seems to have made a little difference but not much).

The only mods on the vehicle I am aware of is a EGR Blank + Butterfly/swirl mod and a custom exhaust (looks like a 3" straight pipe with a hot dog), i'd like to change this as it's a little loud for me.

Thanks in advance.

Last edited by someguy360; 10-12-2017 at 04:24 AM.
Reply With Quote
Sponsored Links

  #2  
Old 10-12-2017, 08:57 AM
ben85's Avatar
ben85 ben85 is offline
Advanced Member
 
Join Date: Jan 2010
Posts: 1,215
Default

Need to look at turbo, take the alloy pipe off it that comes from the airbox and have a look at the condition of the compressor wheel and check for any free play.

Also check the intake hoses, make sure the clamps are tight, hoses no splits.
Check the small hose that connects to the boost sensor.

You should reach around 15psi boost under load.

Also do the neutral position switch test. (Do a search if ur not sure).

Sent from my SM-G360G using Tapatalk
__________________
2002 D22 Navara ZD30 Lifted and Locked on 33's.
Reply With Quote

  #3  
Old 16-12-2017, 01:10 AM
someguy360 someguy360 is offline
Junior Member
 
Join Date: Mar 2017
Location: Adelaide SA
Posts: 14
Default

Think I found the problem

Reply With Quote

  #4  
Old 16-12-2017, 04:37 AM
bods's Avatar
bods bods is offline
Advanced Member
 
Join Date: Sep 2010
Location: Orelia, WA
Posts: 4,734
Default

I think you might be right..... Nice find

Sent from my Lenovo TB3-710F using Tapatalk
Reply With Quote

  #5  
Old 14-04-2018, 01:52 PM
Kingyme Kingyme is offline
Junior Member
 
Join Date: Apr 2018
Location: 4213
Posts: 3
Default

What was the issue mate? Cant see the pics

Sent from my SM-G950F using Tapatalk
Reply With Quote

  #6  
Old 15-04-2018, 01:09 AM
someguy360 someguy360 is offline
Junior Member
 
Join Date: Mar 2017
Location: Adelaide SA
Posts: 14
Default

Rubber hoses between the turbo and inlet manifold were split from years of oil swelling the rubber.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT +1. The time now is 02:30 PM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
| Home | Register | FAQ | Members List | Calendar | Today's Posts | Search | New Posts |