Please check my Coolant Temp numbers
Thread Starter
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Mudding
Joined: Oct 2017
Posts: 133
Likes: 9
Please check my Coolant Temp numbers
Hello all. I’m new to the Rover world so I just wanted someone to look at my numbers and let me know if I’m in the right place.
While idling for about 20 minutes in the school pick up line today, AC blasting, 100* outside, it creeped from 194 to 215 before I shut off the AC and it slowly dropped back down.
Normal idle without AC it won’t go above 200.
Highway cruising at 65-70 mph it’ll float between 185 and 194 depending on hills.
Around town it’s about 190-194.
I replaced the entire cooling system minus the heater core and fan/clutch a few days ago. I’m now running green coolant and a bottle of water wetter, as well as the grey 180* stat. System was held in vacuum with a Robinair tool for a few minutes before filling with said coolant, so there should be no air.
I planned to replace the fan clutch, but the one in the truck is integrated with the fan.
My concern here is that I should be able to idle theoretically indefinitely with the AC cranked if the system is operating as it should. Other than the fan and clutch, I don’t see any other concerns here. Is this just a “Rover-ism” til I go inline t-stat and/or e-fan? The current clutch seems fine by the way, stiff to spin.
Thanks all!
While idling for about 20 minutes in the school pick up line today, AC blasting, 100* outside, it creeped from 194 to 215 before I shut off the AC and it slowly dropped back down.
Normal idle without AC it won’t go above 200.
Highway cruising at 65-70 mph it’ll float between 185 and 194 depending on hills.
Around town it’s about 190-194.
I replaced the entire cooling system minus the heater core and fan/clutch a few days ago. I’m now running green coolant and a bottle of water wetter, as well as the grey 180* stat. System was held in vacuum with a Robinair tool for a few minutes before filling with said coolant, so there should be no air.
I planned to replace the fan clutch, but the one in the truck is integrated with the fan.
My concern here is that I should be able to idle theoretically indefinitely with the AC cranked if the system is operating as it should. Other than the fan and clutch, I don’t see any other concerns here. Is this just a “Rover-ism” til I go inline t-stat and/or e-fan? The current clutch seems fine by the way, stiff to spin.
Thanks all!
Thread Starter
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Mudding
Joined: Oct 2017
Posts: 133
Likes: 9
Do you think that may help my idle temps?
Camel Trophy
Joined: Oct 2016
Posts: 4,863
Likes: 1,407
From: Michigan
Is your electric fan mounted in front of the condenser running, while A/C is on? The mechanical fan is not enough air flow, while idling...in those type of ambient air temps. I believe your electric fan should activate, once A/C is turned on.
Brian.
Brian.
Thread Starter
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Mudding
Joined: Oct 2017
Posts: 133
Likes: 9
Indeed it is running when the AC is switched on.
Thread Starter
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Mudding
Joined: Oct 2017
Posts: 133
Likes: 9
Interesting thing happened just now while I was testing the e fan. Without the AC running there’s a real bad surging miss in the idle. With it running, not a problem. P0150 is present and P0155 is pending. Weird how the AC has such a dramatic affect though.
Camel Trophy
Joined: Sep 2017
Posts: 3,813
Likes: 1,331
From: Mission BC Canada
One of the problems is the condenser position in front of the rad, so if you get marginal air flow you are moving hot air past the condenser which is hot to the rad. 20 minutes is along time to idle with the air on or off ,in these. Popping into neutral and bringing up the revs to 1500+ might have helped.
Thread Starter
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Mudding
Joined: Oct 2017
Posts: 133
Likes: 9
Thread Starter
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Mudding
Joined: Oct 2017
Posts: 133
Likes: 9
One of the problems is the condenser position in front of the rad, so if you get marginal air flow you are moving hot air past the condenser which is hot to the rad. 20 minutes is along time to idle with the air on or off ,in these. Popping into neutral and bringing up the revs to 1500+ might have helped.
Gonna start with that new fan (it’ll be here Wednesday.) If that doesn’t help I may look into another fan.