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28-02-2018
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Senior Newbie
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Join Date: Feb 2012
Location: Adelaide
Posts: 84 What Jeep do I drive?: WH
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Liked 2 Times in 2 Posts
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OPerating temperatre
Can someone tell me what the normal water temp for a crd is. Mine runs around 70 normally but lately it has been creeping up to around 80 s0metimes. We have days around the 30 degree days.
cheers Phil
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Phil&Ann
WG Grand Cherokee CRD Just another way of going broke
to tow a Jayco Sterling van
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28-02-2018
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Newbie
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Join Date: Jul 2017
Location: Western Sydney
Posts: 38 What Jeep do I drive?: WG
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When i first got my CRD it took for ever to get to almost 70, which i thought was far to cold.
Once i replaced the thermostat, the temperature now runs just above the 85 mark even when it's 40plus deg's.
Micheal
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28-02-2018
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Lowranger Shocker
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Join Date: Jul 2017
Location: SE Qld
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Mine was originally running around 60 (bought it in May) but with the recent Brissy heat wave its been getting up to a little over 70. Doing a low range long climb I've seen mid 90's. Remember, the hydraulic fan doesn't fully kick in until 98-ish. I've never got there. I did pop off the connection to the temperature sensor to test the fan. Trust me, you'll know if it's running!
I would not be concerned about mid 80's on a hot day.
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28-02-2018
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Lowranger Shocker
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Join Date: Apr 2007
Location: Dracula's next door neighbor
Age: 35
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On the gauge it will be on the 3/8 mark
JeanLuke, what year is yours? Mine was up to 102*C and the fan did not change to high. I could hear it ramp up a bit when it was 35*C outside and the A/C was running. JeepDiagPro said 15% PWM only.
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Quote:
Originally Posted by Barefoot
Hey I wonder what happens if I plug this wire in therAAAAAGGGGGGHHHH............
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01-03-2018
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Lowranger Shocker
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Join Date: Jul 2017
Location: SE Qld
Posts: 1,520 What Jeep do I drive?: WG
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Quote:
Originally Posted by Adrian D
JeanLuke, what year is yours? Mine was up to 102*C and the fan did not change to high. I could hear it ramp up a bit when it was 35*C outside and the A/C was running. JeepDiagPro said 15% PWM only.
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Mine is 2004. I use Torque Pro to get temperature readings. JeepDiag Pro does not do any engine stuff for me (only gearbox at the moment) so I cannot comment on my PWM.
I read somewhere (cannot recall where) that the fan should hit full speed at 210F (or 98C).
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01-03-2018
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Lowranger Shocker
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Join Date: Apr 2007
Location: Dracula's next door neighbor
Age: 35
Posts: 1,626 What Jeep do I drive?: WJ
Likes: 96
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This TSB discusses the 4.7 with the hydraulic fan:
http://www.wjjeeps.com/tsb/tsb_wj_0700201.pdf
THE COOLING FAN SHOULD BE OPERATING WHEN ENGINE TEMPERATURE
IS BETWEEN 105°C TO 112°C
When yours started to run normally was it as loud as when you unplugged the temperature sensor?
__________________
Quote:
Originally Posted by Barefoot
Hey I wonder what happens if I plug this wire in therAAAAAGGGGGGHHHH............
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01-03-2018
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Lowranger Shocker
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Join Date: Jul 2017
Location: SE Qld
Posts: 1,520 What Jeep do I drive?: WG
Likes: 174
Liked 274 Times in 221 Posts
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I've never got it warm enough to find out. My comment about hearing the fans was based on how loud they were when I disconnected the temperature sensor.
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