2012 F150 Ecoboost Coolant vs Transmission Temperatures - After Water Pump/Thermostat
03-15-2023, 02:22 PM
#1
Junior Member
Thread Starter
2012 F150 Ecoboost Coolant vs Transmission Temperatures - After Water Pump/Thermostat
I need guidance on engine coolant/transmission temperature changes/delta after a recent water pump/thermostat/belts/coolant change.
I have a digital tuner on my 2012 F150 Ecoboost and have always monitored my engine coolant/transmission temps. In the past, the temps have been about the same when running empty (not towing).
I recently replaced the water pump/thermostat/belts/coolant. Now, the engine coolant temps are running a bit lower (which is expected with the changes), BUT the transmission temps are running higher. I am now seeing a delta of approximately of 10-12 degrees, with the transmission being 10-12 degrees higher.
Any ideas on what would cause the transmission temps to start running higher after water pump/thermostat/belts/coolant replacement?
I have a digital tuner on my 2012 F150 Ecoboost and have always monitored my engine coolant/transmission temps. In the past, the temps have been about the same when running empty (not towing).
I recently replaced the water pump/thermostat/belts/coolant. Now, the engine coolant temps are running a bit lower (which is expected with the changes), BUT the transmission temps are running higher. I am now seeing a delta of approximately of 10-12 degrees, with the transmission being 10-12 degrees higher.
Any ideas on what would cause the transmission temps to start running higher after water pump/thermostat/belts/coolant replacement?
03-15-2023, 03:00 PM
#2
Senior Member
Do you have enough coolant in the system? Check it cold in the morning.
03-15-2023, 05:35 PM
#3
Junior Member
Thread Starter
I've got the coolant level sitting perfect in degas reservoir. I did several things to make sure system was "burped" properly...and then set the level.
I was on the highway today for about an hour (68-70 outside)...and on the flat highway (no turbo heat) the ECT ranged 188-192 and the Trans ranged 198-204. So, the Trans ranged 10-12 degrees hotter. I don't think the Trans temp is alarming, but I am just used to seeing them range very close (until the recent water pump/thermostat/belts/coolant replacement). So, either the new coolant/thermostat is keeping the engine that much cooler now...or something is causing the Trans to range higher.
I really don't think the temps are alarming, but I just don't understand why I would be getting the difference immediately after the work. My truck has the auxiliary trans cooler and I always expected the Trans temps to not get much higher than the ECT (unless of course, I was towing or climbing thru hills/elevation).
I am just trying to see if there are any other thoughts to what might cause the 10-12 delta, after the recent water pump/thermostat/belts/coolant replacement.
I was on the highway today for about an hour (68-70 outside)...and on the flat highway (no turbo heat) the ECT ranged 188-192 and the Trans ranged 198-204. So, the Trans ranged 10-12 degrees hotter. I don't think the Trans temp is alarming, but I am just used to seeing them range very close (until the recent water pump/thermostat/belts/coolant replacement). So, either the new coolant/thermostat is keeping the engine that much cooler now...or something is causing the Trans to range higher.
I really don't think the temps are alarming, but I just don't understand why I would be getting the difference immediately after the work. My truck has the auxiliary trans cooler and I always expected the Trans temps to not get much higher than the ECT (unless of course, I was towing or climbing thru hills/elevation).
I am just trying to see if there are any other thoughts to what might cause the 10-12 delta, after the recent water pump/thermostat/belts/coolant replacement.
03-16-2023, 01:19 AM
#4
Senior Member
That's correct trans temp. I thought you meant hotter than the trans used to be. You are fine. If the trans used to be below 195, that is weird.
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