Ford Super Duty (1999-2016) :: 2011 F250 - Overheating When Running Idle Or At Low Speeds


Aug 17, 2016

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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Ford Super Duty (1999-2016) :: F250 V10 Overheating After Running For A While

My 1999 f-250 superduty shows overheating after it runs for awhile but it doesn't actually overheat the gauge just shows it. What it does is drops down to four cylinders. Is my heads blown or could it be something else it has 260,000 on the engine.

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Ford Super Duty (1999-2016) :: 2011 F250 Shake At Highway Speeds Around 70 To 75 MPH

I have a 2011 f250 6.2 cclb and it shakes around 70 to 75 mph. Not terribly but enough to annoy the crap out of me. Now I have put new tires on it recently, new Rancho 9900 adjustable shocks, I have it aligned regularly and tires rotated and balanced every 5000 miles or so. I have had two dealerships look at and my local shop and they can't see anything visibly wrong with it.

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Ford Super Duty (1999-2016) :: 2002 F250 V10 Rough Idle / Not Running Perfect

I have an 02 f250 V10 with a rough idle (90K Miles). It's not horrible but it's obviously not running perfect. Everything seems ok when I am up and driving, especially at freeway speeds. I recently noticed that if the truck is in park and I run the RPM's to 1500 or 2K and quickly let off the gas it will die. It never throws any codes. So far I have replaced the IAC Valve, fuel filter, O2 Sensors, PCV valve, cleaned the MAF sensor and replaced the air filter. Plugs and boots were replaced 5K miles ago. Fuel trim levels on both banks are running around -3.1 to positive 3.5 based on what the computer is telling me. Also according to the computer the vacuum sits steady around 25 at idle (+ or - .2). I don't have a manual vacuum gauge, just relying on the computer. I've also gone around to every plug and disconnected both the injector wire and the COP wire and they all seem to equally affect the idle as well as the fuel trim levels.

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Ford Super Duty (1999-2016) :: 2011 F250 - When Start To Accelerate In First Gear Truck Goes To Idle For About 2 - 3 Seconds

I have a 2011 F250 with the 6.2 gas engine. I have been having a problem that the dealership says there is nothing they can do and have never heard about.

After the truck sits all night I get in and drive it for 10-15 min. It gets warm and I get out turning it off. When I come back about 15-45 min later I start it up and go to leave. As I pull out and start to accelerate in first gear the truck goes to an idle for about 2-3 seconds. I push the gas pedal and get no response. After a couple of seconds it picks up wherever you have the gas pedal. If you have the pedal to the floor it jumps you forward. This is not putting on any lights and the computer is not throwing any codes. According to the dealership the computer is telling them there is nothing wrong.

This has happened 12 times in the past 6 months. It has happened since I bought the truck. I have just started documenting it as of 6 months ago. It is not something I can make it do on command. After it happens once it doesn't seem to do it again for a week or two. I have 31000 miles on the truck. The dealership has had it for 4 days now and can't seem to get it to happen for them.

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Ford Super Duty (1999-2016) :: F350 V10 - Trans Overheating At Low Speeds

I have a 1999 f350 v10 stock truck. It has plenty of power when it's cold out or raining or I'm on backrooms or highways but if I drive through town on a hot day the transmission kicks bad I have changed the fluid and filter, it also seems to shift at a high rpm from 2nd to 3rd. Unless I you let off quick and go back on kinda like engaging a 2 speed rear end. Does it need a bigger trans cooler or is the trans shot

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Ford Super Duty (1999-2016) :: 2011 - After Oil Change Overheating?

I have an 11 F350 6.7. It has just under 200K miles on it. Yesterday I changed the oil. Very uneventful. Today however, I was driving home, about 100 miles, and my truck's temp spiked. Not like a little spike, but jumped to the 3/4 mark(if there was one) then slowly kept rising to to the overheat mark. I pulled off onto the hard shoulder waited an hour or so to let it cool down, then finished the drive home.

All the way home my temp gauge seemed like it was on some sort of drug. It would jump a needle width when I would have to accelerate, then slowly cool to normal after I got up to cruising speed.

When I got home I checked the oil level and it was spot on in the "normal" range. I haven't used a different type/brand/weight of oil in the last 100k miles. Did something just give out on my truck? I had the coolant flushed and replaced at the dealer within the last 10k miles.

Up until this point this truck has been exceedingly reliable. I pull a 13k 5th wheel once a month and drive about 40k-ish miles a year.

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Ford Super Duty (1999-2016) :: 2011 F350 Overheating After Oil Change

I have an 11 F350 6.7. It has just under 200K miles on it. Yesterday I changed the oil. Very uneventful. Today however, I was driving home, about 100 miles, and my truck's temp spiked. Not like a little spike, but jumped to the 3/4 mark(if there was one) then slowly kept rising to to the overheat mark. I pulled off onto the hard shoulder waited an hour or so to let it cool down, then finished the drive home. All the way home my temp gauge seemed like it was on some sort of drug. It would jump a needle width when I would have to accelerate, then slowly cool to normal after I got up to cruising speed.

When I got home I checked the oil level and it was spot on in the "normal" range. I haven't used a different type/brand/weight of oil in the last 100k miles. Did something just give out on my truck? I had the coolant flushed and replaced at the dealer within the last 10k miles. Up until this point this truck has been exceedingly reliable. I pull a 13k 5th wheel once a month and drive about 40k-ish miles a year.

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Ford Super Duty (1999-2016) :: 1997 F250 HD - Motor Keeps Overheating

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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Ford Super Duty (1999-2016) :: 2000 F250 Engine Overheating / Low Power And Sputters

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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Ford Super Duty (1999-2016) :: 2008 F250 - Blower Only Has 2 Speeds

Only 2 speeds of the 4 speeds are working on my blower. I was thinking it may be the switch, but someone at the shop told me to replace the blower resistor first. I did that and still only have 2 speeds. Im guessing I need to replace the switch now?

Also, I am having problems with my heat adjustment. I have it set to warm (half way between cold and hot) and out of the blue it will start blowing hot. I turn it down all the way to cold until it blows cold air and turn it back to warm, and it will be fine for a few minutes and start blowing hot again. Vacuum problem? blend door problem? How would I go about trouble shooting this problem?

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Ford Super Duty (1999-2016) :: 2001 F250 - Overheating - Replacing Bypass Valve On Trans?

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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Ford Super Duty (1999-2016) :: 2011 F350 - Brake Pad Squeal At Low Speeds

At low speeds, I notice a squeel sound in all four wheels. Ford tells me that it is due to the type of metallic pads they use and is essentially brake dust noise that warrants no repair.

Any after market pads that are good quality for towing heavy loads, yet aren't metallic in composition? For instance, are porcelin pads a good choice.

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Ford Super Duty (1999-2016) :: 2004 F250 Running Low On Oil

I have a 04 f250 with aprox 95k on it 5.4L I knew I was over mileage for a due oil change I haven't been driving it much it crossed my mind, as I am usually very adamant about changing fluids. I went to check my oil and only a smudge of oil on the dip stick. I know this is not good but the truck runs fine, no noises, no knocking, not a chatter from the valve train. Oil pressure was good everything seemed fine did I get lucky? I know it wasn't good I am not going to let that happen again everyone think I dodged the bullet?

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Ford Super Duty (1999-2016) :: 2014 F250 6.2L Gas Engine Stalls At Highway Speeds

2014 F250 SuperDuty 6.2L gasser, x-cab long bed work truck. 105k miles, original owner, 1 driver, mostly highway miles, well maintained and super clean truck.

First issue occurred at 83k miles, Aug 2016. Warm summer day climbing I-70 in CO, slightly loaded, and just entered the Eisenhower tunnel (11,150' altitude). Lost power, no RPMs - not running, I put it in N and rolled as far as I could. Hazards on and no-where to pull over, hugging the wall and blocking one lane. Power OK - will crank, no fire. 1/3 tank on the fuel gauge and >100 miles distance to empty on the trip computer. Tunnel rescue shut down traffic and pushed me out into the daylight.

After waiting an hour to fill our paper work for disabling the interstate tunnel I returned to the truck which quickly started. No symptoms, no lights, no codes. Topped off the fuel tank after a easy 15 mile drive downhill. Drove another 800 miles symptom free to my destination and checked it in at the dealer. At this time a check engine light had finally illuminated - PO420. I shared the story of stalling out at highway speeds with the Service Writer. Dealer replaced the cats, confirmed fuel pressure OK, computer condition OK, serviced the trans (at my request).

No symptoms reoccurred during the next 20k miles until last weekend. 105k on the OD now. Heading to Flagstaff, AZ on I-40 in similar conditions. Hot, AC running, climbing in elevation, slightly loaded, running on the bottom 1/3 of the fuel tank... Died while cruising at 79 mph. Well, at least this time I wasn't in a tunnel and had a shoulder to pull off on. Deja-Vu - full power, radio on, no engine lights, gauges normal, fuel reads over 1/4 tank, >100 miles till empty on the trip computer - won't start. Cranks, but no fire. Some sputtering during start attempts must have triggered the next trouble code.

Opened the hood, removed the gas cap, let it vent and cool for about 30-40 mins while I took a walk. Returned to the truck which easily started and let me drive to the next fuel station, 30 miles away. This time the check engine light stayed illuminated. It took 24 gals of fuel. Drove 3 more hours and almost 200 miles without symptoms - check engine light still illuminated keeping me curious and fully alert along the way.

Got the codes pulled at a parts store that was open on Sunday. PO300 & PO301. Random misfires and cylinder 1 misfires. Sounds consistent with poor fuel supply? Spent the rest of the day searching forums for any clue to this highway stalling. All I came up with was to clear the computer - disconnect battery, turn lights on, wait 15 mins, reconnect battery, start engine, apply brake, drive, etc. This and another full tank of gas gave me enough courage to set out on my trip home.

Next occurrence was just outside of Santa Fe, NM. Similar conditions again: Hot day, AC kicking, Interstate travelling about 80mph, slightly loaded, climbing in elevation, fuel tank just below half - stalled out. Repeat previous learned routine. Open hood, vent gas cap, walk it off for 30 mins, return to truck, start it up. Drive to next town and top off with fuel about 30 miles away - only took 16 gals! Made it home 4 hours later without stopping. No repeat symptoms, no check engine lights.

The next day a code - PO420. Catalytic efficiency below threshold.

Quick recap:

6.2L gas engine stalling at hwy speeds.
Cruising between 65-80mph
-Interstate travel - no stops between last fillup and stall.
-Warm weather, AC on
-Running on bottom ~1/2 tank
-climbing in elevation, slightly loaded

To clarify: slightly loaded - no trailer, maybe 1,500 lbs bed cargo, mostly wind drag. The most I have pumped into the fuel tank is 29-30 gals or so. I assume I have the 34 or 35 gal tank. Never seen the calculated "distance to empty" below 40 miles.

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Ford Super Duty (1999-2016) :: F250 - Door Corner Rattle At Highway Speeds

My factory-ordered 2016 F250 CC SB 6.2L 4X4 3.73 is about 6 weeks old. Driver and passenger side door rattle noise (in upper back corner) at highway speeds (65-75 mph) has gotten progressively worse over those 6 weeks. See attached video.

Trying to determine if this is caused by:

Door seals: the temperature here in Iowa has dropped from a few weeks in the 90's to the now in the mid-60's.

Could the temperature change have caused the seals to change shape/structure and result in the rattle/noise?

The exterior seal between the front and back doors (attached to front of the back door): mine seems a little loose on top, but nothing that would cause this kind of noise.

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Ford Super Duty (1999-2016) :: 2003 F250 - Vibration At All Speeds And In Rear End When Braking

My 2003 Ford F250 V10 seems to have a vibration, sometimes at all speeds and sometimes at freeway speeds. I replaced front hub assemblies and ball joints and rear calipers last year. When braking i have a vibration in rear as well, which I think is from uneven rotor but can it be causing my vibration? Also sometimes I can smell hot brakes from the rear.

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Ford Super Duty (1999-2016) :: F250 Misfires But Running Very Rough

I have an 2003 F250 7.3 Diesel 4wd. Yesterday I knew I was low on fuel but I don't think I ran out of diesel. My gauge was above the "E". 50 miles left on my overhead readout, but you never know. All of a sudden the truck misfires and is running very rough before it dies on me. I get it towed home.

Thinking that it possible I ran out of fuel and screwed up my fuel pump, I bought a new fuel pump and fuel filter, installed them and I have the same symptoms. I am guessing I lost my prime, who knows. I have 180,000 miles on it and haven't ever had engine problems.

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Ford Super Duty (1999-2016) :: 2003 F250 5.4 4WD - Running Rough?

I bought it and changed the fuel filter and it was dirty. Then ran a tank of gas with seafoam and then with lucas fuel injector cleaner. Still nothing. It idles like its missing and as long as you are light on the pedal it revs up fine but if you're heavy on the throttle its. Its has no codes that's why I haven't replaced the coil packs and plugs but they have been ordered. I just thought there would be an engine code if any of the coils or plugs were bad. Looked for a vacuum leak but couldn't find any. The donut gasket on the pass side is bad would that cause it to run shifty with no code.

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Ford Super Duty (1999-2016) :: 2003 F250 - Moaning Noise From Front End At Highway Speeds

I noticed a moaning from the front end a few weeks back and it seems to be slowly getting a little worse. It is only noticeable when I'm accelerating or maintain speed, but as soon as I let off the accelerator and start to decelerate, it goes away. Sometimes, when the truck hasn't been driven for at least a couple hours, I pull away and there is a really noticeable sort of "clunk clunk clunk" but then it goes away and it just moans. I can also hear some noise from the front end at highway speeds, but of course it is hard to hear much else other than engine and road noise from the cab. It's a 2003 F250 with a 7.3 and four wheel drive.

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Ford Super Duty (1999-2016) :: Running Rough - Chugging Just Off Idle?

V-10 running rough at idle, chugging. a problem has developed with my 2004 E-350 V- 10 after having a new fuel filter installed and the induction service done . Picked it up from a local shop and it was running rough after bringing it in when running great! I figured maybe it fouled a plug or something so I drove it home but it didn't improve so I brought it back and had new plugs installed. It is still running rough and wanting to almost stall when accelerating from a stop and the shop cant figure it out , not showing any codes.

I'm thinking maybe they caused some type of vacuum leak that is so far undetected. The killer is it came to the shop running great !!

No other problems with the vehicle, I drive it every day and have owned since new. 278,000 on it now and it has been the best vehicle I have ever owned.

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