TOW/HAUL LIGHT FLASHING!!! - Diesel Forum - TheDieselStop.com
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6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

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Old 03-09-2011, 04:45 PM   #1 (permalink)
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TOW/HAUL LIGHT FLASHING!!!

Hello,does anyone know what it means when the tow/haul light on the dash is flashing? Check Engine light also just came on and truck was shifting hard and then all of a sudden stopped but engine is alo running rough now.Thanks!
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Old 03-09-2011, 06:01 PM   #2 (permalink)
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Whats your temp gauge reading?
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Old 03-09-2011, 06:19 PM   #3 (permalink)
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This just started happening today. The trans temp guage reads normal as the temp start to rise when I first start the truck. Then before it gets to normal operationg temp it drops below the celcius mark and the tow/haul light starts flashing. I'm not sure if the check engine light tripped because of that or something else...the truck started idling real rough a couple days ago which it only does for a minute then stops and it seems to be when decelerating on the highway off ramp or stopping at a light etc...then it goes away...wierd. The check engine light never came on before today either...Thank you,Ryan.
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2007 FORD F-350SD 6.0L POWERSTROKE,Black,4x4,Fx4,Auto,Lariat,CC,SB,156 in.wb. tow command,upfitters,power moonroof and slider,backup sensors,chrome package,6 disk in-dash changer,heated leather,20inch polished forged wheels,completely stock except for Limo tints,rainguards and Rotella T 5w40 synthetic.
1999 Ford mustang cobra/procharged/heavily modified
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2004 F-350 6.0TD/xlt/4x4/Auto/supercab(traded-in)
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Old 03-09-2011, 07:44 PM   #4 (permalink)
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The flashing tow/haul light means something is wrong with the transmission. It takes a high end scan tool to read Ford transmission codes. Without the codes you won't know what's wrong.
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Old 03-09-2011, 07:46 PM   #5 (permalink)
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I meant the "C" (cold) mark...not celcius.
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Old 03-10-2011, 07:58 AM   #6 (permalink)
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This JUST happen to me yesterday!

Replaced the trans temp sensor (20 bucks from ford) and its all fixed. There seems to be a common thing from what ive read.

the sensor on my 6.0 was inside the pan, so you have to drop the pan to get to it. And if you drop the pan, you might as well change the filter and inline filter out while its apart.
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Old 06-28-2014, 09:29 PM   #7 (permalink)
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Originally Posted by 07stroker View Post
Hello,does anyone know what it means when the tow/haul light on the dash is flashing? Check Engine light also just came on and truck was shifting hard and then all of a sudden stopped but engine is alo running rough now.Thanks!
Don't want to revive a dead thread but I just had this happen in my 2006 6.0. Did it turn out to be the transmission? What did you have to do to get it fixed? I'm trying to troubleshoot what it could before taking it in to the dealer.
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Old 06-28-2014, 09:56 PM   #8 (permalink)
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Read post #4 and the signature of the "poster".

We all wish folks would update their threads with the outcome (the OP of this thread has not posted up anything since this thread in 2011), but you can be sure that Mark K's post is accurate - the codes are needed to know what is going on.
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Old 06-29-2014, 08:32 AM   #9 (permalink)
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Don't want to revive a dead thread but I just had this happen in my 2006 6.0. Did it turn out to be the transmission? What did you have to do to get it fixed? I'm trying to troubleshoot what it could before taking it in to the dealer.
Whatever was wrong with his may or may not be what's wrong with yours. Knowing why his light flashed won't help fix yours. Read this quote:

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The flashing tow/haul light means something is wrong with the transmission. It takes a high end scan tool to read Ford transmission codes. Without the codes you won't know what's wrong.
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Old 06-29-2014, 11:31 AM   #10 (permalink)
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My tuck did the same thing last month.....

These are the codes I pulled
-

click >>> po700 po710 po713

I dropped the pan an replaced the $14 temp sensor and that fixed the problem.







Good Luck
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Old 06-29-2014, 06:04 PM   #11 (permalink)
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My tuck did the same thing last month.....

These are the codes I pulled
-

click >>> po700 po710 po713

I dropped the pan an replaced the $14 temp sensor and that fixed the problem.







Good Luck
Thanks for that info!! I am going to get the codes pulled and see if I get the same ones. If I do I'll know what to do. Thanks.
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Old 06-29-2014, 06:14 PM   #12 (permalink)
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The dealer is going to charge 120 just to pull the codes. Is there a scanner I can buy for around the same price at AutoZone or other parts store that will read the transmission codes? I know about AE but can't afford to fork out that kind of money right now. I'm looking for something that will read the tranny codes stored for possibly around or cheaper than the dealer price.
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Old 06-29-2014, 06:18 PM   #13 (permalink)
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Nothing at the A/P store is going to work.


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Old 06-29-2014, 06:22 PM   #14 (permalink)
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Nothing at the A/P store is going to work.


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Just my luck... Thanks.
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Old 06-29-2014, 08:58 PM   #15 (permalink)
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an easy way to get the codes is take it to ammco have them read it hope this helps everyone
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