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Generation 4-1 Pajero NS Model 2006 - 2009

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  #11  
Old 24-11-19
tomo88 tomo88 is offline
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Yup, it's an auto and it generally stays in 4th when going up the hill as it can be a bit picky when letting it Goto 5th, as it'll just gear down.

Performance wise feels the same; idles nicer if anything so I don't think it's an issue with the timing chain. Asked to have the tappets done so that got done, as well as the tensioner guide. Checked the MMAL recall site and mine only had the airbags on it so yea I'm spewing about my chain having to get done.

Can't say whether they changed the cap and hoses, it wasn't on the quote nor what brand/settings the thermostat has. I'll take a few more samples this coming week, check the radiator is the correct one and check the hosing into the resivour before calling them up and saying that it's still an issue.
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  #12  
Old 24-11-19
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Quote:
Originally Posted by tomo88 View Post
Yup, it's an auto and it generally stays in 4th when going up the hill as it can be a bit picky when letting it Goto 5th, as it'll just gear down.

Performance wise feels the same; idles nicer if anything so I don't think it's an issue with the timing chain. Asked to have the tappets done so that got done, as well as the tensioner guide. Checked the MMAL recall site and mine only had the airbags on it so yea I'm spewing about my chain having to get done.

Can't say whether they changed the cap and hoses, it wasn't on the quote nor what brand/settings the thermostat has. I'll take a few more samples this coming week, check the radiator is the correct one and check the hosing into the resivour before calling them up and saying that it's still an issue.
So are you saying the airbags have not been done? If so, book it in to a dealer urgently as yours are quite old now & the risk increases with age - no cost to you.



Check the recalls australia gov't website to see if your car was within the tensioner recall range. Do you have the old tensioner & chain? If so, discuss with dealer.


If the cap was changed it should be shiny & new looking. If not changed, I would change it now (be sure to get the correct rating - easiest & safest to get a genuine one, as I have doubts about the workshop you have been using). Hoses will also look new if they were changed (look for dirt, etc. near the clamps). If they didn't change the cap & hoses whilst doing the radiator, I'd ask why, as these items don't last for ever. Did they replace the coolant & what brand/type did the use?
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  #13  
Old 24-11-19
tomo88 tomo88 is offline
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Sorry, should have specified that it was only the airbags that were listed under my VIN but that they had been done. I just found the recall specific to the timing chain tensioner and my VIN falls within the range so I'm absolutely kicking my self if I paid 2 grand for something that would have potentially been covered! Argh! The recall doesn't pop up under the VIN search which is annoying, should have done my research prior but I guess it's done now. I'll check the condition of the hosing and cap when I'm back home tomorrow.

Edit: coolant was replaced with 6L of concentrate from penrite, doesn't specify the actual mix on the quote
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  #14  
Old 24-11-19
spot01 spot01 is online now
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Quote:
Originally Posted by tomo88 View Post
Sorry, should have specified that it was only the airbags that were listed under my VIN but that they had been done. I just found the recall specific to the timing chain tensioner and my VIN falls within the range so I'm absolutely kicking my self if I paid 2 grand for something that would have potentially been covered! Argh! The recall doesn't pop up under the VIN search which is annoying, should have done my research prior but I guess it's done now. I'll check the condition of the hosing and cap when I'm back home tomorrow.

Edit: coolant was replaced with 6L of concentrate from penrite, doesn't specify the actual mix on the quote

Some coolants don't mix very well and can form a gel that clogs up the cooling system, particularly if the old coolant wasn't flushed out several times. Check for any sign of gel forming in the coolant.


I'm a bit surprised a specialist workshop wouldn't know about the tensioner recall, or perhaps they did? I'd be asking some questions. My discussions would only be with the manager at this stage regarding this & the overheating that has only appeared since all their work on it. Be polite but firm. Hopefully you don't have to move on to the next step, eg, Office of Fair Trading. If you are in the RAA, they may be able to assist with advice.

I would also discuss the tensioner/chain with a dealer or MMAL area rep, although without the old parts it is a longshot, but it costs nothing to ask - probably depands on what their experience has been with cars from the same batch as yours.
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  #15  
Old 24-11-19
twisted32 twisted32 is offline
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What was the auto temp when coolant hit 117deg?

You say it's in 4th, are you in sport mode, or assuming 4th from rpm?
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  #16  
Old 24-11-19
tomo88 tomo88 is offline
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Assuming 4th on rpm as it does feel like it gears down once on level ground and will check auto temps if available on obd tool as well tomorrow
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  #17  
Old 24-11-19
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Quote:
Originally Posted by tomo88 View Post
Assuming 4th on rpm as it does feel like it gears down once on level ground and will check auto temps if available on obd tool as well tomorrow
You may just be seeing the torque converter unlock rather than a downshift - flick it to manual to see what gear it is in.


Having said that, I leave my NX in D going up there with no dramas at all - gauge never moves. Different model but yours should do it easily.
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  #18  
Old 25-11-19
twisted32 twisted32 is offline
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Originally Posted by tomo88 View Post
Assuming 4th on rpm as it does feel like it gears down once on level ground and will check auto temps if available on obd tool as well tomorrow
Yeah use manual mode, and monitor trans temps as well. I suspect you are 5th unlocked dumping lots of transmission heat into the coolant.

I use that climb for testing on mine on hot (40deg) days, with all my mods, in 4th locked, it will normally just crack 100deg coolant temp at crafers. In the morning at 20deg ambient, it should not be hitting 117deg.

If you prefer to drive it in auto, look at auto mate from MM 4x4.
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  #19  
Old 25-11-19
tomo88 tomo88 is offline
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So measured core and was 26mm, checked hosing. Once again this morning up to 117 degrees before the hills begins to taper off. This time though, I put it into manual and it did say it was in 5th, so I will definitely try it in 4th tomorrow morning and suss the results. I have noticed since the timing chain it feels like it's less indecisive when choosing gears. So to clarify in 5th it'll be working harder because there's more torque on the gearbox, just like trying to pedal uphill on a bicycle in higher gears/lower ratio? By putting it in 4th, takes more load off the gearing but uses more fuel, which would be better overall for the system? It's just odd because I never drove it in manual before all the work done and after the work done these things are happening now. The mechanics suggested the system may be getting more fuel now because of the timing chain change as an explanation for the hotter engine. Unfortunately, the trans temp isn't an option I can find on the obd app but as you mentioned, the coolant temp should reflect this
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  #20  
Old 25-11-19
spot01 spot01 is online now
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Quote:
Originally Posted by tomo88 View Post
So measured core and was 26mm, checked hosing. Once again this morning up to 117 degrees before the hills begins to taper off. This time though, I put it into manual and it did say it was in 5th, so I will definitely try it in 4th tomorrow morning and suss the results. I have noticed since the timing chain it feels like it's less indecisive when choosing gears. So to clarify in 5th it'll be working harder because there's more torque on the gearbox, just like trying to pedal uphill on a bicycle in higher gears/lower ratio? By putting it in 4th, takes more load off the gearing but uses more fuel, which would be better overall for the system? It's just odd because I never drove it in manual before all the work done and after the work done these things are happening now. The mechanics suggested the system may be getting more fuel now because of the timing chain change as an explanation for the hotter engine. Unfortunately, the trans temp isn't an option I can find on the obd app but as you mentioned, the coolant temp should reflect this
Mechanic is talking BS, IMO. I think you need to find a new mechanic, when this is over, or perhaps before? Wright Street Automotive get a good wrap on here (no association).
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