gu patrol temp

sorry ,fokes forgot to sine off..........bill

Hi Bill. I had a 2006 GU patrol TD30 auto. I can almost guarantee that the problem is a clogged radiator. It happened to me twice, and I know a couple of other blokes with the same problem. The radiators can be dismantled and cleaned out. $400-$500 by a competent radiator repair shop. It appears that the coolant breaks down with time. I don't think Nissan will admit to a problem!

Bill your temperatures are the same as I had on several patrols that I owned , not overheating.
Btw I believe the cooling liquid should be 100 % coolant no dilution to give best corrosion protection and highest boiling point.

All the best.

hi Bill
I wouldn't be to worried about 101c towing those kg's, my cruiser would see those temps under similar conditions, my van is about the same kg's.

boiling point wont change all that much but does increase under pressure.

Water – Pressure and Boiling Point

Pressure Boiling Point

Psi kPa bar deg F deg C
0.5 3.45 0.034 79.6 26.4
1 6.90 0.069 102 38.7
2 13.79 0.138 126 52.2
3 20.69 0.207 141 60.8
4 27.58 0.276 153 67.2
5 34.48 0.345 162 72.3
6 41.37 0.414 170 76.7
7 48.27 0.483 177 80.4
8 55.16 0.552 183 83.8
9 62.06 0.621 188 86.8
10 68.95 0.689 193 89.6
11 75.85 0.758 198 92.1
12 82.74 0.827 202 94.4
13 89.64 0.896 206 96.6
14 96.53 0.965 210 98.7
14.69 101.3 1.01 212 100
15 103.4 1.03 213 101
16 110.3 1.10 216 102
17 117.2 1.17 219 104
18 124.1 1.24 222 106
19 131.0 1.31 225 107
20 137.9 1.38 228 109
22 151.7 1.52 233 112
24 165.5 1.65 238 114
26 179.3 1.79 242 117
28 193.1 1.93 246 119
30 206.9 2.07 250 121
32 220.6 2.21 254 123
34 234.4 2.34 258 125
36 248.2 2.48 261 127
38 262.0 2.62 264 129
40 275.8 2.76 267 131
42 289.6 2.90 270 132
44 303.4 3.03 273 134
46 317.2 3.17 276 135
48 331.0 3.31 279 137
50 344.8 3.45 281 138
52 358.5 3.59 284 140
54 372.3 3.72 286 141
56 386.1 3.86 288 142
58 399.9 4.00 291 144
60 413.7 4.14 293 145
62 427.5 4.27 295 146
64 441.3 4.41 297 147
66 455.1 4.55 299 148
68 468.9 4.69 301 149
70 482.7 4.83 303 151
72 496.4 4.96 305 152
74 510.2 5.10 307 153
76 524.0 5.24 309 154
78 537.8 5.38 310 155
80 551.6 5.52 312 156
82 565.4 5.65 314 157
84 579.2 5.79 316 158
86 593.0 5.93 317 158
88 606.8 6.07 319 159
90 620.6 6.21 320 160
92 634.3 6.34 322 161
94 648.1 6.48 323 162
96 661.9 6.62 325 163
98 675.7 6.76 326 164
100 689.5 6.89 328 164
105 724.0 7.24 331 166
110 758.5 7.58 335 168
115 792.9 7.93 338 170
120 827.4 8.27 341 172
150 1034 10.3 359 181
175 1207 12.1 372 189
200 1379 13.8 382 194

Howsey:
The pressures you quote are absolute pressures, not gauge pressures. Normal atmospheric pressure at sea level is about 14.7 psi. If you put a 16 psi cap on your radiator, the maximum absolute pressure in the system will be 30.7 psi (16 + 14.7 psi), and your boiling point will be about 122 Dec C at sea level. As you get higher, the absolute pressure drops off, but the 16 psi cap on your radiator still keeps the boiling point up.

So to answer the question raised by the original poster (is 101 Deg C too high), I would say that it is probably OK. There will be local hot spots in the engine and the scangauge is only measuring the average temperature, but I would say that, assuming your radiator cap is pressurising OK, there is enough margin with about 20 Deg C to boiling point.

97degrees is not too hot .
all the emission controls are set to work at around 90degrees operating temp .
for every one degree of pressure it raises the boiling point 3 degrees .in the old scale
won,t hurt the engine unless you lose coolant ,
mechpete

101 deg is OK...the 4wd is working , but not all that hard ..yet...

My previous Challenger would go straight to 100 deg ( towing a small van ) as soon as it saw a hill....then if the hill was big enough it would head towards 110 and once on a mother of a hill ( just past Tamworth ) it reached 116, which by this time the gauge had started to move up..

My current 4wd ( 200 series ) doesn't do the same, but will still get to 100 on a bad enough hill..

The trouble with a scangauge ( or Ultragauge ) is you worry too much watching the temp go up...but all the while the original gauge doesn't move..

But, you get to know at what level the original gauge starts to move up from it's normal position ( if it ever gets that hot )....which means you get to know how much leeway you have before backing off..

I certainly wouldn't worry about any temps below 110 ( unless it was running that hot a lot of the time )

thank you all, for your responses, its a great site and reassuring to have expert advice so close at hand.. does anyone no the pressure cap value for this patrol, thanks again

bill..................