Engine temperature help. Again.
Pro Wrench
Joined: Apr 2018
Posts: 1,516
Likes: 442
From: SE PA
IMHO, 200° F at idle with the AC blasting is nothing to worry about. In case you're not aware, a 180° thermo does not mean your engine will maintain that temp. That's the point at which the thermo opens and the radiator starts doing its job of diffusing heat. 177° and 165° is too low for these engines. You won't get a complete fuel burn. Ideally you want to be in the 195°-205° range however many of us start getting squirrely when numbers like 205 start appearing. In truth there's nothing to worry about if it's repeatably lowered into the 190s when revving the engine or improving airflow across the radiator (moving).
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Drifting
Joined: Jul 2019
Posts: 46
Likes: 0
I feel the same way especially in the vegas heat, but the problem is if I’m on a trail going less than like 35 it continues to heat up over time, so when I drive on the highway it gets the engine hot and then I pull off to do a trail and go like 10 mph it doesn’t allow me to cool enough
Pro Wrench
Joined: Apr 2018
Posts: 1,516
Likes: 442
From: SE PA
That would indicate a problem with coolant flow. There's no reason why you shouldn't be able to shed enough heat at low speeds to keep temps manageable. Maybe drop down to a lower gear to get the water pump pushing more fluid. Water Wetter might not be a bad idea either. I'm not experienced with super high desert heat but Land Rover sure is so if you're starting to overheat in those conditions then there's a problem moving the coolant through the system. That said, 220° doesn't seem crazy in extreme heat and demanding conditions. Seems a little high given the 180° thermo but as long as it comes back down with higher revs and more air across the radiator it may just be minor issue. We're getting outside of my experience now though so maybe someone else can comment..
Recovery Vehicle
Joined: Sep 2015
Posts: 1,125
Likes: 77
Also do a forum search as I was able to follow the lead of some members and do a useful mod of allowing the ac fans to come on with separate cabin switch. It’s a mod that brings be a some piece of mind during the Summer months.
TReK
Joined: Mar 2010
Posts: 2,777
Likes: 625
From: NYC
If you are experiencing temp spikes with A/C then the electric fans in front of the A/C condenser (and the normal radiator) are something to look at. They SHOULD turn on automatically when the A/C is on or when temp rises past 212 degrees. If they are not on, that is a problem.
If you want to replace just the electric motors (and perhaps have to do some minor modifications to get the fan blades on) these should work..
Or you can replace both fans with these...
If you want to replace just the electric motors (and perhaps have to do some minor modifications to get the fan blades on) these should work..
Or you can replace both fans with these...
Recovery Vehicle
Joined: Jan 2011
Posts: 1,170
Likes: 300
From: StL, MO
97 discovery 1, 175k miles
once the engine is up to operating temperature i am getting temps of up to 220 while going at trail speeds or being stopped. I can manager to cool it off if I’m constantly moving.
here is everything I have done to the vehicle in the year I’ve had it that has to do with cooling.
180 stant thermo
new coolant reservoir
new reservoir cap
all hoses flushed and serviceable (not brittle or hard.)
new Nissens radiator (this month.)
new fan
heavy duty or severe duty fan clutch HAYDEN.
engine temp sensor
new water pump along with fan clutch
I have a p1191 code which I believe is something to do with the CATS/O2 sensors, but I’m not sure that it has anything to do with my heat problem.
it takes a while to get up to temps of 200+ but once it does it’s hard to cool off. Can anyone give me some advice here I’m desperate with this damn thing lol
once the engine is up to operating temperature i am getting temps of up to 220 while going at trail speeds or being stopped. I can manager to cool it off if I’m constantly moving.
here is everything I have done to the vehicle in the year I’ve had it that has to do with cooling.
180 stant thermo
new coolant reservoir
new reservoir cap
all hoses flushed and serviceable (not brittle or hard.)
new Nissens radiator (this month.)
new fan
heavy duty or severe duty fan clutch HAYDEN.
engine temp sensor
new water pump along with fan clutch
I have a p1191 code which I believe is something to do with the CATS/O2 sensors, but I’m not sure that it has anything to do with my heat problem.
it takes a while to get up to temps of 200+ but once it does it’s hard to cool off. Can anyone give me some advice here I’m desperate with this damn thing lol
what are the ambient temps when this happens?
if you're hitting those temps in the snow then there is a problem. if you are in the desert and it's 90* F then those temps seem reasonable.
my 1996 Discovery can hit 220* F in the Midwest summer heat when moving slowly or idling.
Thread Starter
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Drifting
Joined: Jul 2019
Posts: 46
Likes: 0
If you are experiencing temp spikes with A/C then the electric fans in front of the A/C condenser (and the normal radiator) are something to look at. They SHOULD turn on automatically when the A/C is on or when temp rises past 212 degrees. If they are not on, that is a problem.
If you want to replace just the electric motors (and perhaps have to do some minor modifications to get the fan blades on) these should work..
https://www.amazon.com/dp/B019T9TZUI...v_ov_lig_dp_it
Or you can replace both fans with these...
https://www.amazon.com/dp/B000C3DD8G...v_ov_lig_dp_it
If you want to replace just the electric motors (and perhaps have to do some minor modifications to get the fan blades on) these should work..
https://www.amazon.com/dp/B019T9TZUI...v_ov_lig_dp_it
Or you can replace both fans with these...
https://www.amazon.com/dp/B000C3DD8G...v_ov_lig_dp_it
Thread Starter
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Drifting
Joined: Jul 2019
Posts: 46
Likes: 0
what are the ambient temps when this happens?
if you're hitting those temps in the snow then there is a problem. if you are in the desert and it's 90* F then those temps seem reasonable.
my 1996 Discovery can hit 220* F in the Midwest summer heat when moving slowly or idling.
if you're hitting those temps in the snow then there is a problem. if you are in the desert and it's 90* F then those temps seem reasonable.
my 1996 Discovery can hit 220* F in the Midwest summer heat when moving slowly or idling.
