How Serious

mxer201 · 06-30-2009, 08:56 AM

could a problem be that causes code P1744 from my 2001 Lincoln Navigator? The transmission fluid level is fine.

mudseeker · 07-01-2009, 09:16 PM

your trans will never go into lockup and your MPGs will go down.

mxer201 · 07-02-2009, 07:48 AM

Quote:

Originally Posted by mudseeker

your trans will never go into lockup and your MPGs will go down.

It still goes into lockup just fine. The code happened when traveling 75 mph and the OD Off lamp started blinking. Also when coming to a toll booth after the code happened the engine died but started just fine. Then later after turning off and starting the engine the lamp stopped blinking. After all this we completed a 300 mile plus road trip without any more strange occurances. Before the trip we have been noticing an intermittant slip when taking off from a stop. Felt like having one foot on the brake the other on the gas. Would usually do this after backing up then going to drive.

mudseeker · 07-02-2009, 08:05 AM

hmm, maybe the TC was stuck in lock up and caused the engine to stall if this was a one time occurance.

mxer201 · 07-02-2009, 03:26 PM

Quote:

Originally Posted by mudseeker

hmm, maybe the TC was stuck in lock up and caused the engine to stall if this was a one time occurance.

A mechanic told me the same thing. The hesitation or slipping has him wondering what is going on.

mudseeker · 07-02-2009, 04:42 PM

a bad TC will cause a lag during acceleration.

eponator · 07-02-2009, 05:54 PM

Seems to me the TC is starting to show problems; the flashing OD switch is a telltale sign of this I believe.

I wouldn't be surprised if your TC took a dump on you in the somewhat near future. Its usually best to address any tranny problems as soon as they show themselves otherwise they have a tendency to break more components on their way out or cause further damage over time.

I'm not a transmision guy or anything but I have heard plenty of horror stories to steer me in this direction. Hopefully someone more knowledgeable about these transmissions can provide further input but if it were my truck, I would have it looked at by a reputable transmission shop.

06-30-2009, 08:56 AM	#1
mxer201 Full Member Join Date: Feb 2007 Posts: 42	How Serious could a problem be that causes code P1744 from my 2001 Lincoln Navigator? The transmission fluid level is fine.

07-01-2009, 09:16 PM	#2
mudseeker Senior Moderator Join Date: Feb 2006 Location: michigan Posts: 6,317	your trans will never go into lockup and your MPGs will go down. __________________ i'd rather be hunting

07-02-2009, 08:05 AM	#4
mudseeker Senior Moderator Join Date: Feb 2006 Location: michigan Posts: 6,317	hmm, maybe the TC was stuck in lock up and caused the engine to stall if this was a one time occurance. __________________ i'd rather be hunting

07-02-2009, 04:42 PM	#6
mudseeker Senior Moderator Join Date: Feb 2006 Location: michigan Posts: 6,317	a bad TC will cause a lag during acceleration. __________________ i'd rather be hunting

07-02-2009, 05:54 PM	#7
eponator Senior Member Join Date: Nov 2008 Location: West Covina, Ca Posts: 234	Seems to me the TC is starting to show problems; the flashing OD switch is a telltale sign of this I believe. I wouldn't be surprised if your TC took a dump on you in the somewhat near future. Its usually best to address any tranny problems as soon as they show themselves otherwise they have a tendency to break more components on their way out or cause further damage over time. I'm not a transmision guy or anything but I have heard plenty of horror stories to steer me in this direction. Hopefully someone more knowledgeable about these transmissions can provide further input but if it were my truck, I would have it looked at by a reputable transmission shop. __________________ '99 F350 5.4L crewcab Longbed

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