Tranny Temperature Question?
08-09-2006, 09:19 PM
#1
Tranny Temperature Question? I just installed my heads and cam package and put in a 4000 stall,shift kit,and a BM tranny cooler with a fan on it.I drove it in 98 degree weather today and it ran at 180 while cruising at 45mph but when I would stop and go it would go up to 205 and then come back down to 180 when I would get into over-drive.I live in TX is this normal temp or should it run cooler.Let me know?THanks 
08-11-2006, 09:42 AM
#5
TECH Apprentice
iTrader: (2)
Join Date: Apr 2004
Location: Cary Il
Posts: 323
Likes: 0
Received 0 Likes
on
0 Posts
Trans The Tranny is a follower of the motor. If the motor is running hotter then the trans should to. If the trans is hot and the motor is cool something is not right.
Trending Topics
08-11-2006, 09:17 PM
#9
Today it was 102 degrees while I was cruising around town and it would get up to 205-207 and then come back down to 185 when my tranny would get into over-drive.Is this normal or not I'm getting a little scared.Let me know guys thanks.
08-12-2006, 12:05 AM
#11
TECH Resident
iTrader: (1)
Join Date: Apr 2006
Location: OMG I'm in Kansas
Posts: 819
Likes: 0
Received 0 Likes
on
0 Posts
Make sure your cooler is mounted in a location where it can get some good airflow, even with a fan it needs to be in an area where theres good flow.
I run a TH400 with a 4K stall my sending unit is in the pan and my tranny temps have never gone over 170.
But heres the reason, I have removed the front bumper support and deleted the fog lights. I have no AC and the cooler is a B&M Hi Tek thats mounted to the radiator and I bypassed the radiator cooler. I get a straight shot of air right on the cooler from the fog light opening.
It works so well I have never installed the fan that came with the cooler.
I run a TH400 with a 4K stall my sending unit is in the pan and my tranny temps have never gone over 170.
But heres the reason, I have removed the front bumper support and deleted the fog lights. I have no AC and the cooler is a B&M Hi Tek thats mounted to the radiator and I bypassed the radiator cooler. I get a straight shot of air right on the cooler from the fog light opening.
It works so well I have never installed the fan that came with the cooler.
08-12-2006, 07:24 AM
#12
10 Second Club
iTrader: (15)
Join Date: Nov 2001
Location: St. Michael, MN.
Posts: 4,519
Likes: 0
Received 0 Likes
on
0 Posts
The reported trans temp will depend on where you mount the temp sending unit. My friend has his mounted in the OEM location in the case and when we were datalogging his car with my EFIlive scanner there was a consistent 17 degree difference between the two readings (EFIlive was higher). WOT blast in hot weather will send the temp through the roof with a big stall.
08-13-2006, 06:53 AM
#13
You are ok, but if you want to improve this, go to Lubrication Engineers Monolec 7500. This will reduce the temps about 10-20 degrees, and offer much better lubrication, and a much better chance at a long transmission life. Do some research on this and you will see what I am saying is true.
08-14-2006, 08:29 AM
#16
12 Second Club
iTrader: (3)
Join Date: Mar 2004
Location: Austin, TX
Posts: 318
Likes: 0
Received 0 Likes
on
0 Posts
Do you have the B&M and stock trans coolers both hooked up?
If you have both hooked up the fluid should go into the radiator/stock transmission cooler first, then the B&M afterwards.
The Radiator operating temp is usually 210* so if you flow through the B&M first, it will drop the fluid temp, then when it hits the radiator/stock transmission cooler, it will actually heat up the temps back up to around 210*.
This is why it's supposed to go stock/radiator, then aftermarket cooler, so the aftermarket can further cool the temps.
As you have seen many people recommend bypassing the radiator/stock transmission cooler completely and running only the B&M.
If you do bypass the stock cooler, please post up your results.
As stated before, you also need to make sure that where you mounted your B&M it gets good airflow.
If you have both hooked up the fluid should go into the radiator/stock transmission cooler first, then the B&M afterwards.
The Radiator operating temp is usually 210* so if you flow through the B&M first, it will drop the fluid temp, then when it hits the radiator/stock transmission cooler, it will actually heat up the temps back up to around 210*.
This is why it's supposed to go stock/radiator, then aftermarket cooler, so the aftermarket can further cool the temps.
As you have seen many people recommend bypassing the radiator/stock transmission cooler completely and running only the B&M.
If you do bypass the stock cooler, please post up your results.
As stated before, you also need to make sure that where you mounted your B&M it gets good airflow.
08-15-2006, 12:15 AM
#17
If Your Coolant Is Running Hotter Than 180's Then Try Circumventing The Stock Cooler And Just Using Aftermarket Tranny Coolers This Made A 30 Deg Difference In My Tranny Temps
