Topic Sponsor
2009 - 2014 Ford F150 General discussion on 2009 - 2014 Ford F150 truck.

>> Overheating Water Temp & Tranny Temp <<

 
Old 04-30-2019, 03:31 AM
  #1  
Junior Member
Thread Starter
 
Join Date: Apr 2019
Posts: 7
Received 0 Likes on 0 Posts
Question >> Overheating Water Temp & Tranny Temp <<

Thank you in advance to anyone whom spends the time responding.

2011 Lariat 5.0 FX4
160,000 miles (I purchased 6 months ago)

Driving a couple days ago, I noticed the water temp was pinned, and upon checking the transmission temp, via digital dash, it registered 203F. I checked the coolant reservoir which was empty. I filled reservoir with an entire jug of coolant & a little under a half-gallon of water. This rectified the water temp, and the tranny temp seemed to drop down to an operating temp of 150F. This leads me to believe the tranny is connected to the radiator. Is this correct?

Now, two days later, I'm noticing the tranny is operating back up over 200F. I will be checking the coolant reservoir in the morning, even though the motor is cooling properly, but if the tranny is connected to the radiator & the tranny is overheating due to poor radiator performance & the radiator is low on coolant again, what do you think is the likely cause of radiator coolant loss as I see no leaks? Water pump [weep-hole]?
melampus is offline  
Old 04-30-2019, 05:32 AM
  #2  
Senior Member
iTrader: (2)
 
Join Date: Oct 2014
Posts: 556
Received 63 Likes on 53 Posts
Default

Normal operating temperature for the transmission is around 200F.
Meathead is offline  
The following users liked this post:
melampus (05-02-2019)
Old 04-30-2019, 09:55 AM
  #3  
Senior Member
 
Join Date: Jul 2015
Location: Minneapolis
Posts: 4,307
Received 511 Likes on 433 Posts
Default

Check my sig for the 2 most common coolant leaks. The Y connector generally happens at night when everything cools off and o rings shrink. So, if you look for a leak when you just stop driving, you don't find one, it leaks later.
Spiky is offline  
The following users liked this post:
melampus (05-02-2019)
Old 05-02-2019, 03:36 AM
  #4  
Junior Member
Thread Starter
 
Join Date: Apr 2019
Posts: 7
Received 0 Likes on 0 Posts
Default

MEATHEAD <> Thank you for that info. I speculated the 200F+ seemed hot; I guess not.

SPIKY <> Thank you for the link! When I get some time off of work I'll be looking into it. It [cooling system] seems to not be losing too much, respectively, since I topped it off those days ago, but it did take a quart & a pint last night. That's a lot, yes, but it's not losing so much that I've got caught overheating again.
melampus is offline  
Old 05-02-2019, 09:10 AM
  #5  
Senior Member
 
Join Date: Dec 2013
Location: Acton, California
Posts: 784
Received 74 Likes on 61 Posts
Default

Originally Posted by melampus View Post
I speculated the 200F+ seemed hot;
Warm for the coolant is ~230 range. Hot I believe is 250. Discovered when my truck popped off a coolant hose and dumped it on the Grapevine Pass on the I-5.

These trucks will normally operate around 210 especially on warm days or inclines.
diegoo.jayjay is offline  
 


Thread Tools
Search this Thread
Quick Reply: >> Overheating Water Temp & Tranny Temp <<


Contact Us - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: