Aeroforce & Normal Operating Temps?
Thread Starter
JK Newbie
Joined: Apr 2008
Posts: 25
Likes: 0
From: Midwest (Kansas)
Aeroforce & Normal Operating Temps?
Hello to all,
My Aeroforce gauge should be delivered in a week or so, and mainly I want to monitor the tranny temp and engine coolent temp. My question is at what temp. should I set the warning alarms to go off? I was thinking about 10 degree over normal operating temp. and was wondering what all of you set yours at.
Thanks.
My Aeroforce gauge should be delivered in a week or so, and mainly I want to monitor the tranny temp and engine coolent temp. My question is at what temp. should I set the warning alarms to go off? I was thinking about 10 degree over normal operating temp. and was wondering what all of you set yours at.
Thanks.
JK Jedi Master
Joined: Feb 2008
Posts: 12,907
Likes: 185
From: Maine
The engine temp runs between 190°F and 215°F. The gauge in the instrument cluster doesn't move as the temp fluctuates in this range.
The tranny temp is not as well defined. Mine runs in the 125°F area, and will hit 180°F while wheeling. Other people see overheat conditions just running on the street.
Transmission overheat shift schedule kicks in at 240°F.
Transmission super overheat shift schedule kicks in at 260°F.
Keep in mind, the higher the tranny temp, the sooner you have to change the fluid. I would want to be alerted if the tranny reaches 200°F.
The tranny temp is not as well defined. Mine runs in the 125°F area, and will hit 180°F while wheeling. Other people see overheat conditions just running on the street.
Transmission overheat shift schedule kicks in at 240°F.
Transmission super overheat shift schedule kicks in at 260°F.
Keep in mind, the higher the tranny temp, the sooner you have to change the fluid. I would want to be alerted if the tranny reaches 200°F.
Last edited by ronjenx; Mar 23, 2010 at 09:51 AM.
JK Jedi Master
Joined: Feb 2008
Posts: 12,907
Likes: 185
From: Maine
Overheat
Transmission oil temperature above 115° C (240° F) or engine coolant temperature above 118° C (244° F)
- Delayed 2-3 upshift (25-32 mph)
- Delayed 3-4 upshift (41-48 mph)
- 3rd gear FEMCC (Full Torque Converter Lock) from 30-48 mph
- 3rd gear PEMCC (Partial Torque Converter Lock) from 27-31 mph
Super Overheat
Transmission oil temperature above 127° C (260° F)
- All "Overheat" shift schedule features apply
- 2nd gear PEMCC above 22 mph
- Above 22 mph the torque converter will not unlock unless the throttle is closed or if a wide open throttle 2nd PEMCC to 1 kickdown is made
Transmission oil temperature above 115° C (240° F) or engine coolant temperature above 118° C (244° F)
- Delayed 2-3 upshift (25-32 mph)
- Delayed 3-4 upshift (41-48 mph)
- 3rd gear FEMCC (Full Torque Converter Lock) from 30-48 mph
- 3rd gear PEMCC (Partial Torque Converter Lock) from 27-31 mph
Super Overheat
Transmission oil temperature above 127° C (260° F)
- All "Overheat" shift schedule features apply
- 2nd gear PEMCC above 22 mph
- Above 22 mph the torque converter will not unlock unless the throttle is closed or if a wide open throttle 2nd PEMCC to 1 kickdown is made
JK Jedi Master
Joined: Feb 2008
Posts: 12,907
Likes: 185
From: Maine
I would pull over when it hit the over temp reading.
I would start to change what I was doing if it progressed beyond 200°F, though.
One thing that works is do what it takes to let the TC lock up.
For example, if you are in 4hi, go to 4lo, turn off the O/D, and leave the shift lever in "D". This will allow the transmission to shift to 3rd, and the TC will lock.
I have done this when the tranny went beyond 180°F, and I could see the temp drop.
You will notice, it's mainly the TC clutch which changes behavior when things get hot. This is because the TC generates large amounts of heat when it is allowed to slip.
I would start to change what I was doing if it progressed beyond 200°F, though.
One thing that works is do what it takes to let the TC lock up.
For example, if you are in 4hi, go to 4lo, turn off the O/D, and leave the shift lever in "D". This will allow the transmission to shift to 3rd, and the TC will lock.
I have done this when the tranny went beyond 180°F, and I could see the temp drop.
You will notice, it's mainly the TC clutch which changes behavior when things get hot. This is because the TC generates large amounts of heat when it is allowed to slip.