Ford Super Duty (1999-2016) :: 2001 F250 - Overheating - Replacing Bypass Valve On Trans?
Feb 9, 2016
I am having some trouble with my 4R100 overheating.
Truck is a 2001 F250 XLT 7.3L with 244k miles on it. According to previous owner, the transmission was replaced around 185/190k but there was no paperwork to prove it.
I recently had a leak from one of transmission lines coming into the bottom of the radiator (the one on the passenger side). I replaced it and topped off the little bit of fluid that leaked out. Last weekend I installed a temp sensor in the transmission and hooked it up to my pillar gauges. The first few days driving with it, the temp was at/around 180 degrees, 25-30 degree outside air, unloaded on the highway averaging 70-75mph.
Today on the way home, the temp got to 180 after 35-40min of driving then continue climbing. I pulled off the highway after 1.5hrs and the temp was almost at 210 degrees. I let it idle for 5-10min and the temp didn't change. I turned it off and let it sit for 15 min. Upon starting it back up, the temp had dropped to 180. I continued driving and the temp climbed back up to 210 within 35 minutes. (65-75mph, 24 degree outside temp, unloaded). Once off the highway I averaged 35-45mph on the back roads to my house. The temp started to drop back towards 180 degrees.
Before I start throwing money at it, and installing a 6.0 cooler etc. I am thinking there is something else wrong here. I am going to look at new lines and replacing/repairing the bypass valve on the transmission. I am driving 2hrs to work each way and thats when the temp really starts to go up. The fluid doesnt smell burnt, its still nice and red. I am going to try and flush the lines this weekend and see if something is plugged/caught. I ordered an inline filter today and will put that in with a new hose from the transmission to the radiator (old one is rusted).
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My question is. is there another bulb that will fit and plugin and if so what is the part number? is there a adapter that I can get that will allow the factory plug to work? or will I need to cut the old plug off and splice a new connector on?
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I have a 1997 ford f250 HD with the 460 and auto trans lifted on 38s the motor keeps over heating Im not shear what the problem is I checked the water and thermostat water pump is good when I bout it there is a trace of stop leak in the radiator not shear if that can do any thing.
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I recently purchased a 04 f250 with the 6.0l powerstroke. I drove it for about 3 weeks now, Ive put my trailer behind it with small loads and just today tried to use the tow/haul button. When you go to pull out the tranny never shifts from first gear?? Its pulls and runs fine until you push the buttan and no shifting........
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Two weeks ago did a road trip to NH from RI and i heard a slight dragging only at low speed (10-15mph) in my left rear tire. figured the caliber was dragging a little, it was. Before arriving in NH the brake light came on. Long story short i get back to RI and the left side noise gets worse and starts to lock up. I finally replace the rotor which was warped, pads, and caliper which was bad.
Was driving it same day and still here the same dragging and screeching noise and the brake light is still on. On my way home the left side locked up at low speed without hitting breaks and slid the truck, mid you all parts are new on that side. I am not sure what it could be at this point something in side the axle?
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I have noticed my trans temp gauge needle is dead center of the gauge even on a cold start. I thought my sensor was under the pan so I pulled it and did not see any sensor at all. Is there a external sensor?
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I have a 2006 F250 with the 6.0 PowerStroke and automatic transmission. I just purchased this truck at an auction about a month ago.
Today I notice the transmission is not shifting into overdrive. No warning lights. If I press the tow/haul button in no change but the tow/haul light does come on. If I press it again (to turn it off) the tow/haul light goes out but still the transmission will not shift into overdrive.
This leaves me at about 2000 RPM at 68 MPH. I just had a Ford dealer perform Transmission service last week. (20,000 miles after the last recorded service.)
I am already not happy with the service I received at the dealer so I am really hesitant to take it back to them if it is something not related to the transmission service they performed.
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My dad has a 2006 F-250 5.4 3v that spun a rod bearing at 107,383 miles. He's never been thrilled with the performance of it (told him he should have gotten the 6.0 when he bought the truck new, but why listen to a 15 yr old ). We've been throwing around a couple different ideas for engine swaps since the 5.4 is dead. We scored a 5.4 2V Lightning engine, but after trying to figure out transmission controllers or if we'd be able to tune the stock PCM for the 2v, we've put the project on hold.
Recently, I've been trying to convince him to do a diesel swap over the L-motor. I have a friend selling a cheap 99 7.3 with trans, PCM, harness, intercooler, piping and other misc stuff. Would that harness generally be plug and play with the body of the 06? Would it be more worthwhile to try to find a 6.0 from 05-07 and swap everything over?
I've also been considering a Cummins swap, although I haven't gone much past looking at complete engines on eBay and Craigslist. Would this be the better route, and just get a standalone controller for the 5R110?
So I'm looking for other's opinions. Should we go 7.3, 6.0 or Cummins? Should we stick with gas over diesel? Try to make the Lightning motor work? Or just go back with a stock 5.4 3V? I should say, he won't sell the truck for whatever reason, so he's not worried about resale or anything. We're in Michigan, so we don't have to worry about emissions. And we're fairly mechanically inclined, so I'm not too worried about doing the swaps, however my knowledge on diesels is limited.
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I just bought this truck for a pretty good price it has 225000 on it the engine was over heating. The guy put new rad, new water pump, new fan clutch, and a new heater core with thermostat. The truck still over heated so I pulled the thermostat to see what happens and the truck over heats even faster. All this happens while driving regardless of ac on or off. I got a motor and put a motor in it with all new pump and thermostat. I put new coolant in and flush radiator. I cut a hole in the cat to see if the cat was plugged for the truck seems to have low power and sputters. With in 1mile the truck over heated dumping all the coolant out of the system which the truck did as well before. Will the diesel rad work in this truck I have a diesel one I can put in since its a bigger rad?
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My truck all of the sudden started overheating when running idle or at low speeds. No towing or anything with 89 degrees outside it can hit max water temp in matter of 2 minutes once at running temperature and standing on red light. I checked the coolant level - looks good and changed the thermostat just in case, but the problem is still happening. The fan is running/kicking in as well when it gets hot.
I'm waiting for OBD2 plug to read the stats from the computer, but what else would you suggest I can check for issues ? Oil temp gets to about 222 and transmission to about 194, but it doesn't keep on increasing. One another thing I noticed is that when I have AC running it will actually pop a overheating message on the display (I don't continue to drive it at that point) and when it gets hot it seems as if it didn't have much power.
I don't know if this is connected, but about two months ago it started blowing black smoke when starting from red light or stop sign or when accelerating with gear reduction. It is a 6.7 diesel one and only has 60k miles on it, so I'm hoping its nothing major.
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