Ford Super Duty (1999-2016) :: RPMs Shoot To About 4K And Tow Haul Light Starts Blinking When Start Pulling Over
Mar 11, 2017
I just recently got handed a 2005 ford f250 6.0 PSD from my older brother, new to the whole diesel game, well all of a sudden as i was driving down the road about 65 mph, trucks RPMS shoot to about 4K and tow haul light starts blinking as i start pulling over (still in drive of course) i realize i can't move anymore the trucks rpm just rev. In all gears it does not move i moved 1-3 D and R and nothing truck just revs. i had my father get under the truck as i shift from gear to gear and the linkage is moving back and forth on the transmission as i put it in reverse the reverse lights still pop on, I'm new to the diesel game...
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My truck is acting up. Last night when I was parallel parking I noticed the RPM was jumping, I then noticed the OverDrive switch was blinking. I turned off and turned it back on and the issue went away. This morning on my way to work, it did exactly the same and it automatically corrected itself. The overDrive ON/OFF light keeps blinking.
My truck : 7.3 Diesel, Auto trans, 86 K Miles, Super Chip.
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Had a No start issue.Turn the key and nothing. Could hear the relays click so knew it wasn't the ignition. Could jump the starter via the wire on the passenger fender so starter good. Replaced the clutch position switch last night. Still have no start but now when I press clutch I have a tow haul light come on dash.If I press it again it turns off. Truck doesn't have tow haul option installed. I hear a relay clicking under the dash too. This is a 2004 Superduty (F550). Replaced the ignition switch today and still same.
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2002 F-350SD V10 Automatic. Running down the road with no load or with load. First gauges bottom out, next overspeed light starts flashing, engine goes to 3000 RPM on it's own. Stays that way until I shut off then restart. Sometimes it does this several times in one mile.
Second trick, again driving along, all gauges stay up but engine just stops. Got to set dead for 5 minutes before it will start. The shop says on the first problem this happens: Voltage goes way low then goes way high then everything starts failing. We changed battery but no luck. Got to be down line from battery.
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I just noticed that on the highway sometimes (3 times) the tow/haul light is lit. I press the button and it will not turn off and when I get off of the highway I can tell the trans is shifting through the tow/haul strategy. Once I shut the engine off and restart it the light goes off and it drives normal. When it is driving normal I can turn the tow/haul off and on with no problems but noticed the light coming on it's own recently.
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This morning, the tow/haul light came on, tranny temp gauge wouldn't read (stayed below zero), "check gauges" warning came up on the panel, and "check engine" light came on. Truck ran fine/shifted fine, always has.
2007 F-250, V-10, 5-r 110 tranny.
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Looking for a diagram of where the transmission temp sensor is found ..... I have a 2005 f 250 5.4l FX4.... My tow haul light keeps flashing...
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So coming home yesterday from our camping trip the tow/haul light started to flash. this was about 40 miles into the trip. So we pulled over, the tranny fluid looked low, so I added a little more. The light stopped flashing, but maybe another 20 miles it started again, we pulled over and it stopped. We got to a rest stop and after about 20 minutes, I called Good Sams Roadside, there tech said to take it out of tow/haul mode and so we left the rest stop and it was good for just about 40 miles.
We hit another rest stop, at this point we were about 80 miles from home. I did not feel any difference in the truck shifting or if it was acting different. The light flashed again, sometimes going off, then coming back on. We hit two more rest stops, letting the truck rest. We left the last rest stop, we were already halfway up a big hill on the Mass Pike and after 5 miles the light came on, but then after a few miles it stop and from that point to my house ( which was just over 50 miles) it never came back on.
The truck is a 2006 F250 gas that just hit 100,000 miles. New motor put in over the winter and a few years back had the cam phasers and some work done on it. Could this be some sensors, etc that is starting to go and needs to be replaced?
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Well I went about 20mi to pickup a door for my inlaws. Get about a mile from home and my tow haul light is flashing. Truck starts shifting strange then I smell it trans fluid. If course I get stopped by a red light shut it down. Started and had to rev to get it to move now four houses away from home coast into the drive shut it off and trans fluid is covering the entire bottom of my truck. Even the rear tires inside are covered. I had the wife crank it and I blew a trans line near the ext. trans oil filter. What are the chances that I did not toast my trans? No prior shifting or slipping problems before this mishap.
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Experiencing a melt down with one of my trucks. One of our trucks is an 06 F250 SD with 80k on a 5.4L and the other day the tow/haul light started to flash. I took it to a buddy's repair shop (who is an experienced Ford tech and tranny guy) any way, it shifted fine until about the last 1/2 mile before I got to his shop, then it started shifting in and out of different gears. He found solenoid "A" pressure solenoid failure and one other solenoid failure, he replaced all 7 solenoids and also found the pigtail from the transmission to the wire harness bad as well and replaced that. I pick it up and get about a mile down the road and the light starts to flash again so I took it back, he ran his scanner and now found something with the coast clutch and through all his testing it told him the coast clutch needs replaced. He removed the trans. and tore it all down and found nothing wrong with anything, in fact he said everything looked in great shape and thinks the pcm failed.
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I have a 2006 6.0. It's hard to put into to drive and for you to get it moving you have to just about floor it. The tow haul light is flashing but my bullydog won't pull the codes. It stops moving after like 30 to 40 ft after you got it moving and acts like it's in natural. If you turn it off and back on it sometimes will move another 30 to 40 ft sometimes. It also sometimes if you put it in reverse won't let you give it gas. Like you can push the pedal but the rpms won't climb for this reason I'm thinking something to with a solenoid or fuse or something along those lines and also because if you restart it will move again. I don't know much about transmission. I'm taking it to a shop tomorrow for them to try and read the codes. If they say the transmission is toast i already located another one 2 hours away to swap in which I'll do myself to avoid the high cost of the shop which also I'll look to yall for guidance. I drained some of the transmission fluid and didn't see any metal flakes. Should I pull the pan as well and look if nothing is coming out in the trans fluid ?
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So I was driving my 2004 6.0 auto on the freeway today when the tow haul light randomly started flashing, nothing felt wrong until I stopped, then when I went to pull away it wouldn't shift down from 5th according to my livewire ts says under the commanded gear gauge. It shifts into 6 and overdrive fine. I turned the truck off, the light went off but as soon as I put it in drive it jumped around from 1-2-5 and back down until it locked in 5 again and the light started flashing again. What this could be?
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I have a 2000 F350 7.3 4x4. It began giving intermittent tow/haul flashing light, when going up or down hill but would clear and drive next time truck was cycled off/on. No ABS lights and code reader generated P0720 for the output speed sensor, now I can get it to generate just driving slowly fwd and rev a few times. All of this has been in the last few days.
Truck will stall if I take it up a slight incline with the fault. I replaced the sensor on the top front of the 4r100 transmission and also replaced the sensor on the rear differential after giving up on looking for an output sensor on the transmission. I know the 2WD transmissions have an output sensor but is there one on the 4WD version? I have read several past threads discussing the P0720. I am hoping to confirm what sensor I need to be looking at and where it is located in this application.
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I have a 2007f550 auto trans with a flashing tow/haul light and a code of po791 coming up. Flashing light will clear in k/o position and remain off until placing selector in drive,after two feet or so of travel,an audible clunk and the trans acts like it is in third gear. Reverse is no change and highway will not shift into o.d. The iss "A" is listed as the culprit but ford doesn't list a iss a.
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I have a 2003 F250 with the 5.4 and I believe I am having a fuel delivery issue. I took out yesterday and stopped to get a drink at the gas station, came back out and the truck wouldn't start long enough to idle. It would start, barely bounce off zero rpms and die out. I checked the fuel interia switch and it was down. I tried turning the key back and forth thinking it might reset the fuel pump or something and that didnt work. I get the truck towed home and couldn't get it to start last night. I go out this morning and it starts, come home from work and now it won't. This happened about 2 years ago and I never did anything about it, but it took 2 years for it to happen again.
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I've got a 2006 f250 with 160,000 miles, trans was rebuilt by previous owner about 10,000 miles ago. The tow/haul light started blinking yesterday, only blinks for first couple of minutes of driving and then stops. Service engine light popped on today as well. Won't have access to a code reader until tomorrow, but looking for some preliminary info...
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I have a 2004 F250 Torqshift trans, 155,000 miles. It has had a slight hesitation when trans is engaged for about 4 years, not a problem the dealer has no fix they said.
Now today for the first time I had a tow haul light come on while driving on the freeway. It would not go into overdrive and the light keep blinking. Later in the day, I let it cool down and it drove fine to the store about 2 miles. When I got in to drive home it had tow haul light go blinking and check engine light came on this time.
I hooked up my code reader and it's giving codes: P0720, P0751 and P0766.
Should I take it to the Ford dealer, a Transmission shop or have a friend who worked at Ford Dealer do the Work? I see that some people have changed out the TFT sensor and corrected the problem. While the pan is down should I just have all the shift solenoid sensors changed?
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I'll try not to post an entire book.. But I bought a 2000 F250 not even 8 months ago, it did have issues before but I changed out the spark plugs and coils and it fixed it's original missing issues.. I also just recently changed the fuel filter but it didn't fix it's new problem.. It drives ok around town but if I get over 35 mph it doesn't run well... If I try to keep a steady foot on the gas but don't get the RPMs over 2000, the RPMs will stay where they're at for just a second then they will drop down and the whole truck starts shaking.. I push more on the gas and it shakes even more and the RPMs don't move at all until I really step on it.. It lacks in power going up hills as well... The dealership i bought it from said the Catalytic Converter was bad but my uncle who is a mechanic says it isn't.. It's the first vehicle I've bought so kinda wanna make it last..
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The problems that I am having at the moment are that the abs light is on from the speedometer, odometer, also the blinking overdrive light that comes on at around 25 mph. After some research I had purchased a ford factory sensor for the rear dif. I then replaced the old sensor with the factory one. Started the truck and not a single thing had changed, both the meters were not working as well as the od light was still flashing.
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Truck : 2000 F250 XLT A/T 6.8L v10 4x4
Issue : O/D off light is flashing on the shift lever. In a drive gear (R, OD, D2, D1) there is very low power when giving it gas, more so from a stop. In P and N, I can rev the motor with no obvious issues. In O/D, I can't even get forward momentum going from a stop when on a slight incline. When on flat ground and in O/D, flooring the gas only gets me going a few MPH and RPMs don't go above 1500ish. When selecting 1st or 2nd, the truck still struggles a bit from a stop but does get up and going.
What happened leading up to the issue : I was on the freeway driving about 80MPH without cruise control se,t and with O/D on as usual, when the blinking O/D off light caught my attention. Not knowing at the time that this was a transmission problem light, I started pushing and holding on the O/D on/off button to try and get it to stop. Probably about a minute later, I realized I was losing speed even when giving more throttle so pulled over to the shoulder. I shut the truck off and restarted it, noted the Service Engine Soon light was now on, then I put it in O/D and gave it gas but only got going a couple MPH which it sounds like the engine was choking/struggling. I then tried D1 and D2 and, while still struggling a bit from stop, was able to accelerate up to 35+ MPH.
OBDII Codes:
P0743
Torque Converter
Clutch Solenoid
Circuit Electrical
P0750
Shift Solenoid A
P0755
Shift Solenoid B
P1747
Pressure Control
Solenoid A Short Circuit
P0443
EvaPorative Emission
System Purge Control
Valve Circuit
P0135
O2 Heater Circuit
(Bank 1. Sensor 1)
P0155
O2 Heater Circuit
(Bank 2. Sensor 1)
Troubleshooting : Transmission fluid check looks good (full and red)
Checked fuse 23 of the Central Junction Box
Held a ground wire to bottom of Transmission pan and to the frame while I started the truck, O/D light still flashing
Wiring looks good coming to the plug on the driver side of the transmission
More info:
- No "Service Engine Soon" or blinking O/D off light prior to all this happening.
- I don't believe I'm getting 1st gear. I don't recall if I got my speed up to 30+ MPH while in D1, but while in D2 I never noticed a shift from stop to ~35MPH. At 35MPH, my RPMs were around 2500 I believe.
- While cruising at 35MPH in D2, shifting to O/D results in lost power. I had to stay in D2 all the way home.
To do (I believe):
1. Check shift solenoids (looking for DIY info)
2. Check shift solenoid pack (looking for DIY info)
3. Check TCC solenoid (looking for for DIY info)
It sounds like there are a couple shift solenoids to check as well as a solenoid pack (how best to check these out, I'm still looking for)?
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had a problem with their OD light blinking and shift problems. This past week my od light started blinking and when I shifted into drive, it was stuck in overdrive. When I shift into 1st it would go to 2nd and stay there. So basically I had 2nd and overdrive. I started replacing sensors like the VSS, and checking the wiring warness. Took it to a transmission garage and they told me it was toast. Then I decided to bite the bullet and buy a new tranny. After replacing the tranny it did the same thing with the same codes showing. Then I got smart and checked the fuses. Of course it was as simple as a blown fuse causing all the trouble. In my truck it was fuse 23 under the dash. A 20 amp fuse that was listed as engine control. Im not saying that in every case if the OD light starts blinking it's as simple as a fuse but in my case it was, so lesson learned. Always check the fuses first.
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