Question about Ford F-350

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2003 ford f-350 trans temp gauge shows hot, tow / haul light blinks steadily....what could be the problem

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  • Jason Conway
    Jason Conway May 21, 2011

    diesel/gas? when towing?

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From what i know of these trucks, its a "common problem". There is a tsb on this and the gauges arent really accurate. The tow light is blinking due to heating(not really), its trying to tell you to stop towing. Ive read that some guys gauge is reading 250 which if it really were, the truck would be running. Water boils at 220(im sure u know that). Suggestions ive come across is adding aftermarket gauges that give "accurate" readings unlike factory ones that are controlled by computer. Aftermarket will give you independent readouts.Heres a temp check you can try on your truck, im not sure if it will work for your model.




This is for the regular dash, like in XLT.
key off
push trip button in and hold
turn key on
"test" will appear in message display. Release button.
Gauges will sweep
then just push the button each time to scroll thru various modes.
Mostly junk info, but eventually you will come to temp, it is in Celcius so you have to convert to Farenheight(temp x 1.8 + 32)
Normal temp for mine at idle is 88, so 88x1.8=158.4,+ 32=190.4F
You can also view digital tach. All these modes are real time, and will remain on until you cycle the key on/off.

Posted on May 21, 2011

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Dodge cummins tow haul stays on


Hi, I have a 2004 Dodge Ram 2500, 5.9 Cummins with 225,000 miles. Just today, my Haul/Tow keeps coming on and Trans/Temp light. Keeps automatically switching in and out on its own. It's been 100,000 miles since my last trans maintenance. Going to a mechanic close and he suggested to start with fluid change, filter change, and inspect the band, maybe adjust. Trans runs very smoothly. Checked the fluid, looks clean and not hot. Is this common with this year and mileage? If so, whats normally the out come? If the band is bad, do I have to replace the entire trans?


Scott

Oct 29, 2011 | 2004 Dodge Ram 2500

1 Answer

I have an '03 f350 and the trans fluid guage went hot and tow haul started blinking


check your trans fluide oil for a burnt smell
if so replace ---mercon sp only in power shift trans
anything else will cause damaged
tow haul light fashing = trasmission code
need to scan probably faulty sensor chaff wire
dirty conection /partialy unplug junction
burnt fuse

Dec 28, 2010 | 2004 Ford F350

1 Answer

Trans gauge droped down passed the c today on the hwy and message told me to check trans temp came home turned truck off for an hour started it back up drove around for 45 min temp gauge was between h and...


check it for a short in the wiring harness , check the trans temp with a laser pointer thermo gun before you leave and then after a drive , or when it goes haywire .
sounds like a bad sensor , or may be a sort .

Oct 11, 2009 | 2005 Ford F 350 Super Duty

1 Answer

Tow/haul light comes on gauge shows HOT


Does the trans fluid have a burnt smell and is it brown or dark brown as opposed to a red wine color? If this is the case then you may have a service issue caused by a clogged trans filter which is what this sounds a great deal like and the sooner you get the truck to the dealer or your mechanic the better as the trans in these are not cheap to rebuild or replace.

Aug 21, 2009 | 2003 Ford F350 Super Duty DRW SuperCab

1 Answer

My f250 check gauge light is on, the tow/haul light flashes and the trans temp is pegged cold and has no power???


check the bulk connector for for dirt, bent pins, water, corrosion and a good solid connection

Aug 20, 2009 | 2004 Ford F250

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I have a 2003 f350 srw with 170k the other day the trans gauge started bouncing and the tow haul started flashing everything seems to be okay


Check the wiring on the frame where it turns and goes to the trans, i have found a couple with chaffed wires and some of the wires run the trans temp sensor.which will cause both of these problems.

Jul 20, 2009 | 2003 Ford F350 Super Duty DRW SuperCab

1 Answer

03 f-350 trans hot


I would begin by checking the transmission fluid level. If it's ok, then that means that your transmission has overheated. Have it checked for overheating damage by a professional transmission shop. If everything checks out ok have them add a secondary transmission cooler. This will allow the transmission to cool down faster under heavy hauling conditions. Hope this helps, good luck!

May 08, 2009 | 2003 Ford F350 Super Duty DRW SuperCab

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