No TC lockup until warm
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Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
No TC lockup until warm
I noticed this the other day on my 2000 Excursion. The torque converter will not lock up in overdrive until the temp gauge just begins to enter the normal range regardless of speed. I know how inaccurate and varied the factory gauges are but I don't have the aftermarket gauges installed yet.
Is this by design to try and bring the tranny fluid up to temp faster? Or is this an indication of something wrong?
Is this by design to try and bring the tranny fluid up to temp faster? Or is this an indication of something wrong?
Elder User
Joined: Apr 2008
Posts: 511
Likes: 2
I've been told the TC doesn't lock out until the tranny temp gets up near 60*. Not sure how "warm" your truck is getting or how long it takes, but this sounds normal to me. I have a Scan Guage on the dash of my truck and my tranny gets up above 60* after about 10 mins of driving....quicker if I let the truck idle for 10-15 mins before I head out.
Thought I just noticed you are in CA so how cold does it get there? My condition only happens in really cold temps....like below freezing as it is here now.
Thought I just noticed you are in CA so how cold does it get there? My condition only happens in really cold temps....like below freezing as it is here now.
Posting Guru
Joined: Oct 2012
Posts: 1,910
Likes: 2
From: Hat Creek Ca
Thought I just noticed you are in CA so how cold does it get there? My condition only happens in really cold temps....like below freezing as it is here now.
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Depends on where you are. Coast not too bad, I had 18* this morning in NE Cal.. Have seen 15* below but not very often. 100 miles NE of here sub zero and then some is common.
__________________
Depends on where you are. Coast not too bad, I had 18* this morning in NE Cal.. Have seen 15* below but not very often. 100 miles NE of here sub zero and then some is common.
Cargo Master
Joined: Oct 2009
Posts: 2,500
Likes: 14
From: South Carolina
I purchased my truck new, meaning I know its complete history. This is normal.
EDIT: I notice Mark commented already (above). He is the ford transmission answer man.
EDIT: I notice Mark commented already (above). He is the ford transmission answer man.
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Thread Starter
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Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
Thought I just noticed you are in CA so how cold does it get there? My condition only happens in really cold temps....like below freezing as it is here now.
__________________
Depends on where you are. Coast not too bad, I had 18* this morning in NE Cal.. Have seen 15* below but not very often. 100 miles NE of here sub zero and then some is common.
__________________
Depends on where you are. Coast not too bad, I had 18* this morning in NE Cal.. Have seen 15* below but not very often. 100 miles NE of here sub zero and then some is common.
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From: SE Florida
It happens at almost any temperature. There is a sliding scale of start temp vs. initial lock temp. At warmer temperatures it only needs to warm a few degrees before lock is allowed, so it isn't very noticeable.
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