Ford Super Duty (1999-2016) :: 2003 F250 - No Heat And Coolant Flow Restriction
Feb 23, 2014
I have a 2003 F250 Super Duty 5.4L V8 with no heat. It wasn't missing, running funny or blowing white smoke out of the tailpipe and there were no coolant leaks nor did it overheat. Thermostat has been replaced twice, heater core flushed twice, water pump replaced, fan clutch replaced and blend door works...Cabin airflow gets colder when turned from hot to cold. This thing is sitting in my driveway and I am about to push it over a cliff. Did I mention it only has 56,000 miles on it?
Coolant was drained to replace water pump and flush heater core (again, water ran through in both directions with no stoppage). 3 gallons of undilluted antifreeze was put into the overflow bottle to be topped off with water...the coolant went in and stopped. Engine was started to force coolant from bottle...coolant backed up into the bottle and out the top. Heater core inlet hose is hot and outlet hose not very warm if at all. Upper radiator hose is soft. Didn't check lower radiator hose as I was a bit peeved and slammed the hood closed and called it a night. I have been throwing money at this thing that I do not have and am at my wits end with it.
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I bought the truck today (cheap) know it had this issue, oil in coolant no coolant in oil, ATF was not apparent on dip stick I'm told truck over heats.
2003 f250
5.4
400,000 + miles
I saw no bubbles in coolant tank when running... Need some things to check to narrow it down....
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Recently got a 2003 f 250 6.0 that has had a little work done on it. Absolutely love it with 1 exception. When I turn on the ac or heat It blows a 10 amp fuse that goes to the blower relay. It was occasionally now it's all the time.Blower ok, fan speed resistor ok. What or where to look.
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I recently purchased this truck and have towed a couple of times with it. It has 98,000 miles and I do not know if the automatic transmission fluid has been changed. Should I have it flushed or drop the pan and change it? I have a lift so doing the change is no problem, although it might be worth it to pay a transmission shop to do it.
Also, I hear what appears to be like a heat shield rattle or something that sounds kinda like an exhaust leak during loaded acceleration. What to look for to locate the noise? One last question, the air bag light is on sometimes then off sometimes. Any known air bag light issues? I love the truck, hate the gas mileage!
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I've researched the heck out of P0401.... I have an 04' F250 w/a 6.0, 61k miles, completely stock. I have been getting a reoccurring P0401 EGR flow CEL. I've checked all the fittings and tubes and see no cracks or breaks. I've checked the exhaust system and no signs of leaking soot anywhere except on the passenger side exhaust manifold, there is some minor deposits of soot near the first two cylinders, but that's it.
Everything else looks good and I can't hear any hissing either. I am not getting any white smoke from the exhaust. I pulled my EGR valve and looked at it, it looked fine. I cleaned it off and put it back in. Then I got a new one just to see if that fixed it. I am missing a little coolant. I'm adding maybe a few cups of coolant every few weeks. Truck is always serviced and only repairs was Ford replaced the EGR valve in 2008. When I pull my EGR valve, it is slightly moist in the housing but not wet and no sludge. Again, the EGR valve had a nice layer of soot, no build up or sludge on it....
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I have an 03 F-250 6.0 Lariat with almost 200,000. The other day my t-stat started sticking and popping at 220 and then would go back to normal. Now it won't pop and it's puking coolant in the front of the engine. Would just a bad t-stat cause this or do I need to do my water pump as well.
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I have a 06 f350 super duty and noticed that when I have the heat on and driving about 40-50 mph I get the smell of coolant inside the cab. My temp gauge stays right in the middle like normal. When I got home tonight I opened the hood and didn't see nothing major. I took a picture .....
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Having problems with no heat at idle or low heat in the cab. I just bought this truck a couple weeks ago and have a limited warranty on it. The truck makes no heat at idle. I start it and let it just run, engine temp gauge goes up to normal operating temp in 15 min or so, still nothing from the vents but cold air. If I drive it I get a "little" heat, at idle, cold air again. I believe the thermostat is working because like I said, engine temp stays right in the middle.
Brought it to local ford dealer, their diagnosis was heat core clogged and needed to be flushed, had that done. truck has been running 40 minutes in the driveway now, engine temps nice and warm, no heat. What could be the issue? I took a picture of what I believe are the lines running to the heater core, just barely warm to the touch, not hot by any means. It looks like there is a vacuum actuator on the line running in but there is no hose attached to it, what this it, should it have a line running to it?
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Truck is a 1999 F-250 with manual climate control with A/C.
Heater core issue:
Heat is not very warm after engine is fully up to temp. Would like to back flush the heater core without damaging or making it leak. How should I do this safely?
Secondly, if I do make it leak, how hard is it to change out?
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I just purchased a 2007 Ford F250 5.4l V8. I noticed the coolant reservoir was a bit low so I went out and bought some Prestone extended life universal coolant, distilled water and a hydrometer. The current Coolant I have is a yellow/gold colour, which I believe is motocraft brand. I added 150ml 1:1 of distilled water and coolant. After that I tested the temperature rating and it was off the gauge (the previous owner obviously added just coolant and no water). My plan was to drain the radiator half way and refill with distilled water. But, how to do that I came across a lot of forums saying you can't mix Prestone ELT with Motocraft coolant or it will eat away at your engine as well as create a thick goo. Is this true? Will such a small amount (75ml) cause this effect? Do I have to do a radiator flush now, or can I just continue with my plan of draining it half way? The old coolant looked pretty clean. Do you think the Prestone anti freeze has already done any damage?
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2006 F250 with the dash controlled 4x4. I typically keep the front hubs locked on this truck. I have recently noticed that when shifting into 4x4 that the a/c or heat will switch from blowing out of the vents to blowing out of the defrosters. Any clues how to fix this?
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Another question on this, my 2008 F250 with auto climate has decided to only blow heat on the passenger side...do you agree that it is an actuator? If so how hard or easy is this to fix and what is the best fix.
While here, on another note, I noticed a rubber line hanging right over my front diff it looks like it could go onto a nipple coming off the diff? Is this a vacuum line for the diff that I need to put back?
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I got my 1999 f250 super duty v10 about a month ago. It had 200,700 some miles on it. It's now at 201,865. My issue is when I turn on my heater I smell coolant. It's kinda strong. No leaks that I can see. Not in the ground or in the cab or from what I can see of the heater core. It only smells when the heat is on, no smell on the cold setting. It sat for months before I bought it from a dealership. What it could be? Ok now it sounds like I have the ticking death sound. The one people have said happens when spark plugs are about to fail. So I guess new plugs are in order.
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My 2008 250 suddenly lost ability to adjust temp control of heat and A/C. I can adjust the fan speed and the defrost/dash vents/foot heater position controls, but no matter how far I turn the cold/hot dial left or right, the temp is the same. Even in the Max and Norm A/C setting, it's the same temp, which is stuck in the hot range.
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My 2002 F250 Crew/Diesel/4X4/lariat has ever since I bought it, had an electronic problem.. sometimes I start it, the heat coil light stays on, sometimes the radio won't work, the windows won't work.. then about 2 minutes later, they work, my back up alarm always comes on turned off... sometimes my fuel gauge registers weird, ....
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I have a 2006 Ford F-250 coolant leak only when the truck is cold. Ive noticed it in the morning when I leaving for work. It looked liked it was coming from the passenger side yesterday and today it's on the drivers side when I'm sure is because my driveway has a small tilt to it I've looked everywhere I could under the hood and don't see it leaking.
I don't have any temp problems or white smoke and my coolant level has changed that much and for a few days the drip stopped now it's back. I tried to search for the answer but can't find it. I'm just wanted to make sure it's not the head gasket but I'm sure I would have a sign it it was. I will include where I saw it dripping from. It's parked on flat ground here ... That's where I saw a drip coming from driver side ....
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I just bought a 2000 F250 SD 6.8 v10 and its mixing coolant in the block and leaking oil. I'm debating on just dropping a newer v10 in it but im just not 100% sure that this engine is shot. It runs great when there's oil in it and I can't even tell there's any problems going on for well over a couple hours after i fill it up with oil.
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A few months ago I had a battery go bad. When I started the 2004 F250 6.0 it barely started. After that my transmission gauge became the engine coolant gauge and the engine coolant gauge became the transmission gauge. I tried disconnecting batteries but that did not work. I have the Scan Gauge tool and confirm the gauges are reading correctly but just swapped. So I'm wondering if the is a reset procedure for instrument panel.
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I am new to fords i have an 06 f250 6.0 lariat i just replaced head gaskets and studded the heads with egr delete with new oil cooler ..my issue is now the truck wont start it trys but wont run and i have coolant spitting out from reservoir and its smoking from it as well. I really don't want to have to spend the money on a shop to rebuild it...
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My 2012 F-250 gas just started showing this message that a coolant change is required. I am just over 59k miles. Is this a timed message all F-250's get, or is it an indications something is wrong? The truck does not run hot, it keeps perfect temperature even when I am towing my 13klbs boat.
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I have a leak from the oil pan gasket and oil coolant lines. From the research I have done, it looks like I have to lift the motor to change the oil pan gasket. Any way to get this done without lifting the motor??? 2000 f250 5.4 2wd....
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