Ultra gauge temperature reading

[LoveB]

Alrightyo, I've had my ultra gauge installed for some time now but I havent set up any alarms to ring when temps reach certain degrees and such.. (mainly cause the fuel kept getting it wrong and ringing for empty when the vehicle had half a tank left.)

What temperatures should I set the warnings at?

I suppose my main one is the engine temp.. I'm usually at 89-92 and 95-96 on a longer climb without any load on. (which kind of worries me about towing)

at what temp should I start worring too?

Also, I just noticed, ive never ever hit it but theres a massive dent on the bottom of the front cooler. (I'm guessing its for the AC but it looks like it took a hit with a hammer or something. 1 row of cooler is pinched)

[Lorryman100]

I set the CHT alarms on my Puma to a low off -20C and a high of 100C. On the Puma the EMS overheating strategy comes in at 105C so by setting the alarm at 100C it gives me the opportunity to come of the gas and allow the head to cool before it gets anywhere near 105C.

https://www.aulro.com/afvb/images/imported/2013/08/720.jpg

I stay in Scotland which is a bit cooler than Australia and my CHT temps run about 88 -92C in the summer time depending on hills etc. In the winter time these CHT temps drop down to 86-88C even when towing a 2 ton load up hills etc, but this is due in part to having a few mods in the engine bay, Large intercooler, Decat pipe, Stainless exhaust with cherry bomb silencer, Hard intercooler pipes (Stainless Steel ) and a remap all from Alive Tuning.

The front cooler on a Puma with AC is the AC radiator.

Brian.

[Lagerfan]

You're running a little cooler than us, our 90 sits around 92-93 just tootling around and hits 96-97 at 110kph on the freeway or under load at lower speeds. Has me a little worried given it is the middle of winter! Unfortunately didn't have the Ultra Gauge in the hotter months when we first got the 90.

Someone more knowledgeable might be able help but would you expect the CHT to be a lot higher with higher ambient temps or does it just reach running temp quicker and the cooling system has to work harder?

[LoveB]

yeah I think most I've gotten so far is 98. Thats on a long uphill road. if it starts to rise I just slow down and down shift. higher RPM in lower gear seems to keep the temps down better.

It does usually get to 92-94 on normal roads but I try and keep it around 89-91. I'll set the alarm to -20 and 100 from now so I know!

I should probably get the AC rad checked next time I get in for service. The way it looks is I would have had to smash the grill to get to where its damaged.

[Grappler]

My Puma 2.2 130 runs at 94-95 according to the Ultragauge.
The gauge on the dash is mid scale indicating normal. The UG derives the value from the vehicle sensor so the accuracy will depend on the quality of the sensor used. According to WS manual, the thermostat starts to open at 82 and is fully open at 96 If the UG value is correct it doesn't give much scope for working hard on a hot day with AC on etc

Ive also plugged the UG to the wife's RRS and it appears to runs about 8 deg cooler at 87-88 in the same conditions.

Follow the fuel calibration procedure to get your fuel alarms more realistic.
The Puma 2.2 fuel cal factor was 0.37 from memory. (away at present)

[Lorryman100]

The CHT sensor on the Puma engine measures the cylinder head temp and not the coolant temp. The UG uses the CHT sensor for coolant temp as the Puma engine doesn't have a coolant temp sensor. You could always fit an after market coolant temp sensor to get a better idea of actual coolant temp.

I have the EGR closed by remap which raises the CHT by 3C. The EGR gases entering the burn actually cool the burn down. I did a little test using my MSV with the OEM fuel file, OEM fuel file with EGR closed and with the stage 1 remap with EGR closed. The CHT temp was 3 degrees C higher with the EGR closed on both the remap file and the OEM file. Once I had the larger intercooler fitted the CHT dropped by 3-5 C on all the fuel files. Summer time driving, 18 - 25 degrees C the CHT readings are 89-91c at 70mph on the motorway on my way to work. The same journey in the winter time, as low as -20 C the CHT is between 84 - 88 C. The temp gauge is in the middle and the heater is blowing hot air. The difference is that in the winter time the induction air temp is low and the air is dense giving a cooler burn where as the summer time air is as much as 40C warmer and less dense and the intercooler and radiator have to work harder than in the colder winter time.

I recently emailed Allisport and they will soon have a stock again of their uprated radiator which I will be fitting into my Puma along with the waterless coolant. Once I have this system fitted I will do a live data session on my MSV and IDS system to see if the addition of all the mods help reduce the CHT when towing. I will post up the results in this post.

The addition of the larger intercooler was the first mod that I fitted that actually reduced the CHT. The removal of the decat and the fitting of a larger diameter straight through exhaust allowed the engine to not have to work as hard which reduced the CHT further. Though all the mods fitted needed a remap file to get them all working together, an Alive stage 2 remap.

HTH Brian

[wally]

My Puma 2.2 130 runs at 94-95 according to the Ultragauge.
The gauge on the dash is mid scale indicating normal. The UG derives the value from the vehicle sensor so the accuracy will depend on the quality of the sensor used. According to WS manual, the thermostat starts to open at 82 and is fully open at 96 If the UG value is correct it doesn't give much scope for working hard on a hot day with AC on etc

Ive also plugged the UG to the wife's RRS and it appears to runs about 8 deg cooler at 87-88 in the same conditions.

Follow the fuel calibration procedure to get your fuel alarms more realistic.
The Puma 2.2 fuel cal factor was 0.37 from memory. (away at present)
I don't mean to hijack the thread but where do I find the fuel calibration procedure? Is it on the website?

[rgty_kmj]

I've got my alarm set at 96 which I have only hit once. Changing 6th gear seems to drop the temperature when it is working hard in 5th.

User manual downloadable from
UltraGauge Start (http://www.ultra-gauge.com/start/)

Kerry
Hamilton

[Grappler]

I don't mean to hijack the thread but where do I find the fuel calibration procedure? Is it on the website?

Its in the Ultragauge manual.
See previous post for link to download the manual

[Grappler]

I logged data from the Defender 2.2 OBD port the other day

Sampled for about 10 minutes on some undulating road. I purposely left it in 6th gear up the hills to put the engine under max calculated load (100%). The resulting graph is not surprising but confirms the kind of rapid temp increases others are seeing.

This test ranged from 88 under zero calculated load up to 98 at 100% (laboring in top up a hill)

[Grappler]

Im concerned about the high coolant temp on my Puma 2.2. so excuse me for bumping the thread

For a near new motor with a clean cooling system to be running in the mid 90 deg range is a worry. Also the temp fluctuates widely depending on load.

As in my previous spiel my RRS runs cooler and does not fluctuate significantly under load

[Loubrey]

That does sound high, but appears to be about ball park for the 2.2

My 2010 (2.4) has never been above 92 degrees and usually moves between 86 and 90 depending on load. I have an Ultraguage I bought when Lorryman100 first posted about them.

I live in WA and my car has pulled a 6.2m boat in 40+ degree ambient with those readings...

Cheers,

Lou

[Lagerfan]

We've had our 2.2 for over 18 months now (from new and stock) and those temps appears normal. Have noticed our "no load" temp seems to sit in the same range regardless of the ambient temps, summer or winter at around 92-93. Under load (climbing/towing) the summer sees a couple of degrees difference say 98-100 (summer) v 96-98 (winter). Still seems hot to me but everyone I've asked says it's normal.

I think, as Lorryman pointed out, in the Puma it is actually measuring the CHT and not the coolant temp so you'd expect it to be pretty hot in there.

[4wheeler]

I am now getting confused. My 2013 2.2 Puma seems to have a temperature sensor fitted to the radiator top hose in a tee piece which is visible on the top RHS. It is also listed in the workshop manual as a temperature sensor in the cooling section from memory and not a cylinder head temperature sensor or am I wrong on this point.
I don't recall what my 2007 Defender had although I know the cooling system arrangement of hose connections was different. Maybe 2.4 was CHT and 2.2 is water temperature. Anyone else confirm?

[4wheeler]

I am now getting confused. My 2013 2.2 Puma seems to have a temperature sensor fitted to the radiator top hose in a tee piece which is visible on the top RHS. It is also listed in the workshop manual as a temperature sensor in the cooling section from memory and not a cylinder head temperature sensor or am I wrong on this point.
I don't recall what my 2007 Defender had although I know the cooling system arrangement of hose connections was different. Maybe 2.4 was CHT and 2.2 is water temperature. Anyone else confirm?



Just had another look at the manuals under engine controls. The 2.2 has both CHT and water temperature sensors but I don't know which the Ultragauge reads. As others have suggested, maybe the CHT. The 2007 manual says it has a CHT which is located in top hose at the manifold junction at the cylinder head and provides engine coolant temperature but this does not seem right as the sensor is at the back of the engine in the cylinder head. I am so confused.

[Grappler]

The ultra gauge reads the coolant temp( 2.2) - to prove- if you disconnect the sensor connector at the top rad hose the UG will read minus 40

[4wheeler]

Hi Grappler,
Yes, I went and disconnected the sensor after I posted and found the same result. Ambient was 15C and when disconnected read-40C and then warned of pending fault when car shut down. All good once reconnected and restarted. Thanks.

[Grappler]

I actually used my UG to clear a DTC today.

Part way through runnng some wiring for my new cruise control. Introduced a fault by running the motor with the accelerator cable jumpers in place but cruise control not connected- The UG cleared the fault first go after I put the fly by wires back to normal.

[Summiitt]

I don't have a scan gauge or similar, but I have no issues at all with my puma 2.2 running at 95-98, the hotter you can get a diesel to run without overheating the better, does anyone know what temp the thermo fan cuts in at? Mine only comes on with the air con on in summer when I'm pushing the ute hard towing or up a hill. As an example my western star prime movers run between 92-105 degrees, as long as they fluctuate up to the higher levels then drop again, I know the cooling system is working at its optimum level and I won't change the way I drive them, even in summer..my 130 is no different, have some faith that plenty of extreme temperature testing has taken place on the vehicles before the motor was chosen for the application

[Zeros]

The past two days, my 2014 Puma 2.2 has been consistently hitting Engine Temps of 100 - 101 degrees according to my ultrascan gauge. I have the alarm set st 100 and first it's sounded.

Towing a tandem cage trailer full of camping gear for 12 pax. Long haul, up hills, mid 20 degrees.

Is 101 degrees a concern at all for Puma?

...thinking of upgrading Intercooler and radiator.

[Colmoore]

Not sure re 2.2; I had a 2.4 w the BAS remap and intercooler upgrade. Just checked my logs from NT & FNQ last year - intake temps of 41, 45, 40 and she never went over 90° coolant with a full load in the car, on the roof and towing a loaded camper.
I didn't upgrade the radiator though.
Cheers,
Col

[LR V8]

The past two days, my 2014 Puma 2.2 has been consistently hitting Engine Temps of 100 - 101 degrees according to my ultrascan gauge. I have the alarm set st 100 and first it's sounded.

Towing a tandem cage trailer full of camping gear for 12 pax. Long haul, up hills, mid 20 degrees.

Is 101 degrees a concern at all for Puma?

...thinking of upgrading Intercooler and radiator.

Have you been dropping back to 5th ? That's about right if you're loaded up in circumstances as you describe.... Pumas run hotter than what you might expect.

[Zeros]

Have you been dropping back to 5th ? That's about right if you're loaded up in circumstances as you describe.... Pumas run hotter than what you might expect.

Yes, dropping back to fifth on hills absolutely, or even 4th. The 2.2 doesn't like towing on hills! LOL.

Hottest was 102 degrees momentarily. But consistently 100 - 101 in 6th on the flat, 5th on hills.

...how does everyone go towing with a puma 2.2 in hot weather (40s) up north?

[PAT303]

Returning from laverton a few weeks back mine hit 100 degree's sitting on 130 on a 44 degree day.Towing it would hit that in 6th on drawn out climbs,dropping to 5th would bring it back to 95. Pat

[Zeros]

Returning from laverton a few weeks back mine hit 100 degree's sitting on 130 on a 44 degree day.Towing it would hit that in 6th on drawn out climbs,dropping to 5th would bring it back to 95. Pat

Cheers Pat, that's what I would expect, but even dropping back to 5th didn't bring it back. It just kept sitting around 100-101 degrees between 90-110km hr. hmmm. will keep an eye on it I suppose.

[Zeros]

Returning from laverton a few weeks back mine hit 100 degree's sitting on 130 on a 44 degree day.Towing it would hit that in 6th on drawn out climbs,dropping to 5th would bring it back to 95. Pat

Cheers Pat, that's what I would expect, but even dropping back to 5th didn't bring it back, even in mid 20's. It just kept sitting around 100-101 degrees between 90-110km hr. hmmm. will keep an eye on it I suppose.

[uninformed]

so who will be the first Tdci owner to cut a vent in the side of their guard......

[dancol]

Drove from Melbourne to robe yesterday towing around 1.5 ton van with car fully loaded for a trip. Outside temp was reading 36. Ect temp mostly between 89 - 93. Had a few hills where it spiked to 100 but nothing worrying. I was sitting around 90/95 kmh mostly

I was following this thread and worrying as the week leading up to leaving we had some hot days in Melbourne and the car Ect temp reached 102 just driving east link without towing.

[PAT303]

Use a bit of common sense,the best thing I did was buy a scan gauge,it sits on the steering column and gives real time temps.Mine survived 50+ degree's in the Pilbara,it was over 50 when I was on the Canning North of well 30,if it can survive that it will survive anything. Pat

[Zeros]

Use a bit of common sense,the best thing I did was buy a scan gauge,it sits on the steering column and gives real time temps.Mine survived 50+ degree's in the Pilbara,it was over 50 when I was on the Canning North of well 30,if it can survive that it will survive anything. Pat

Yes Pat, that's what we're doing...Ultrascan Gauge on the dash. ...hitting 100-102 degrees, dropping back to 5th gear / then 4th on hills, sometimes down to 80km/hr before gauge will drop below 100 degrees.

What temps was your scan gauge hitting on 50 degrees ambient?

[PAT303]

Never went higher than 96,but I averaged 20-25km/hr for most of it,sometimes I struggled to get over 15. Pat

[Zeros]

Never went higher than 96,but I averaged 20-25km/hr for most of it,sometimes I struggled to get over 15. Pat
:Rolling:

[PAT303]

Seriously,it's the only time in all my travels that I felt the bush had got the better of me.I was at a marker 32km's from Windy Corner at 2300hrs and thought it was fantastic I only had a short while before I stopped for the night,little was I aware it took me just over 2hrs to travel those 32k's,and when I did finally get there at 0120 it was still 29 degree's [bawl].That same day after about 5 minutes sleep and well south of Gary Junction I had a hissy fit for a moment and told the bush exactly what I thought of it,hell it was a hard trip. Pat

[rgty_kmj]

Hi,

I hope my query fits in with this thread (last post 5 years ago).

I’ve got a 2012 110 wagon (2.2) that I have had from new and its now got 114,000 km on the clock.
I bought an ultra gauge when I got the vehicle and the ultragauge has been plugged in for most of the life of the vehicle.

Originally I set the ultra gauge warning engine temperature to 96 degrees and very occasionally the alarm would go off if I had been lazy going up a reasonable hill in 6th gear.
Chopping down to 5th always sorted this out.

In the last couple of months the alarm has been going off at 96 degrees at 100 km/hr on the flat on cold days (intake temp ~10 degrees) on the motorway.

And then on the weekend the alarm was going off at 97 degrees at 100 km/hr on the flat on a cold day (intake temp ~10 degrees) on the motorway.

Now I know that 97 degrees is no where near being a problem but I am wondering if the radiator needs a really good flush out
or is this potentially a thermostating sticking problem?
or some other cooling system problem that is very gradually getting worse?

The coolant was changed 3 years ago.

Comments?

Thanks,

Kerry

[MLD]

Hi,

I hope my query fits in with this thread (last post 5 years ago).

I’ve got a 2012 110 wagon (2.2) that I have had from new and its now got 114,000 km on the clock.
I bought an ultra gauge when I got the vehicle and the ultragauge has been plugged in for most of the life of the vehicle.

Originally I set the ultra gauge warning engine temperature to 96 degrees and very occasionally the alarm would go off if I had been lazy going up a reasonable hill in 6th gear.
Chopping down to 5th always sorted this out.

In the last couple of months the alarm has been going off at 96 degrees at 100 km/hr on the flat on cold days (intake temp ~10 degrees) on the motorway.

And then on the weekend the alarm was going off at 97 degrees at 100 km/hr on the flat on a cold day (intake temp ~10 degrees) on the motorway.

Now I know that 97 degrees is no where near being a problem but I am wondering if the radiator needs a really good flush out
or is this potentially a thermostating sticking problem?
or some other cooling system problem that is very gradually getting worse?

The coolant was changed 3 years ago.

Comments?

Thanks,

Kerry


I had the same thing, overheating on flat ground on cool temps or overheating in most benign situations. it was a sticky injector. I ignored it for too long and burned a hole in the piston. at 114k kms, it's about the marker to replace injectors. If its rough on cold start or smokey, another symptom of an injector. The Puma cooling system is, in my experience, very effective. Rarely does it get hot and when it does the temps come down quick. If the thermostat was sticking, i'd expect the symptoms to be across a range of driving conditions and the load on the engine on flat ground on a cool day is modest. Set your ultragauge to "load" to see how hard the engine is working while the symptoms present themselves.

[rgty_kmj]

Thanks for the tip on checking the load via the ultra gauge. I'll get the injectors looked too. Kerry

[rgty_kmj]

For an update on my minor overheating problem see : <https://www.aulro.com/afvb/90-110-130-defender-county/228802-2-2-puma-130-engine-failure-14.html#post3204624> for my story about 4 injectors failing an injector test.

Kerry