Ford F-150 (2004-2008) :: Heat / AC Works For Only 20 - 30 Minutes
Feb 7, 2017
5.4 V8... A/C works for 30min. then stops blowing cold air. Turn system off for 15min. and it will blow cold air again for another 15min. then stops again. Passenger floor area gets cold and can hear fan blowing but no air coming out of vents.
In winter now and stops blowing hot air after 30-40min of driving. Turn system off for 15min. and will blow hot again. Had new A/C compressor and a/c clutch installed back in summer.???
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2007 f150 5.4 supercrew, average temp for the last 2 weeks was -27. I plug the truck in all night it starts good and idles down fast engine is warm. no heat after idling for 3-5 min and then try to drive it takes another 5 min for the temp gauge to hit full temp 192. then my windows fog over even the dash and there is minimal heat coming out takes another 10-15 min to clear the windows. what the "F". fulid levels up, winter front on, block heater works, not using or smelling antifreeze, brush off every last speck of snow and I still have to pull over on the highway and wait......should have kept my 95 5.8l.
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I recently ran very low on coolant with my 2005 Prius and had the overheat light coming on. Immediately before the overheat light came on, I realized that the blower was blowing cold air even though the engine was running. When the light came on, I immediately stopped and refilled coolant at the overflow reservoir and the radiator and let it run through a few times. I have re-topped off the coolant levels and it seems to be holding steady. Hopefully I have not done long-term damage to the engine, but that remains to be seen, and is, of course, very possible given that I let it get so low.
A symptom I have right now is that when I turn the car/engine on, hot air does not come out of the blower. If I remain in park, when the engine turns off, hot air begins to come out. When the engine kicks back in, the hot air stops. What this may be a symptom of?
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My 2004 with 5.4L Lariat is struggling to keep me cool. The AC works fine on mild days but when it gets into the upper 80s it works for about 10 mins then goes warm. If I shut down the AC for about 5-10 mins. it begins cooling again.
I first tried a retail charging kit with no improvement. Then I had the system drained and refilled with die to look for leaks, but neither had any immediate impact. So it is not a leak, but something else failing.
What are the next best troubleshooting steps for an AC system?
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I have an 06 f150 xlt 4wd 5.4. I bought the truck about two months ago and have come to realize that my 4wd is not working. The light works and you can hear the clunk but recently we got alot of rain and i was going down a georgia clay dirt road and almost got stuck in the middle of the road. i tried 4hi and 4lo but only the rear wheels would spin. I had my wife put it in 4wd while i looked under the truck and the half shafts do turn in 4wd. which doesn't make any sense to me. I also unplugged to vacuum line from the intake and capped it off to try and let the hubs engage that way but still nothing. why would the half shafts be turning but no power to the front wheels in 4wd? does that mean the iwe's are stuck engaged? Which would explain why they turn all the time. But if they are engaged, whether they are stuck or vacuum leak or whatever the reason, shouldn't the front wheels be getting power.
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I have a 2006 F-150 S/Crew and I seem to have the same intermittant odometer problem as many of the folks in that 1999-2003 group. The odometer comes and goes, flashes intermittantly and sometimes doesn't work for days.
Can it be repaired in the same fashion as those older units? The dealer is more than willing to sell me a new cluster (obviously). They say that there is "no way to possibly repair those odometer problems and we see them all the time."
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As the title states, my odometer back light works just fine, but nothing displays on it. No mileage reading, no nothing. How to fix it? Found plenty about fixing the back light, but can't find anything similar to this issue.
I've had the battery off for 30-40 minutes and the issue persists after restarting.
2004 F150 XLT SuperCab 5.4L
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I have an 08 that the heater either works all hot or cold. It seems that when i try to control the temp it isnt consistent. It will be on hot, turned all the way the right in the red. Great, it gets too warm in the truck so turn it down a little. Then it is too cold. I only turned it down a little, not even in the blue zone yet. I turn it up a little and it is still cold. Turn it all the way up and it is too hot again. What is up with this. I hope it isnt the blend door syndrome. The truck only has 30,000 on it.
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on my 04 supercab f150. one moment door locks work, the next nothing. started this weekend. its a bone stock truck with 128000 miles. sometimes work sometimes don't. have wiggled harness and connections outside the door. worked fine, pulled it out of the shop and parked it now not working again.
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My front heat controls work at start up occasionally. The heat will eventually come on in front after 15-30 minutes of the truck running. Needless to say this sucks for defrosting the front window during warm up. The rear controls work fine. I do have a couple that need replacing but the fan control isn't one. Temp & selectors. I've searched but haven't been able to find anything about same issue. Where to start?
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Recently my truck is only blowing heat or air conditioning on full blast in my 2004 Ford F-150 (New style, not heritage).
Level 1, 2, or 3 is exactly the same and blows almost nothing, then if I switch it to 4 it is full power.
I just don't know what exactly I will need to change. I know it would be a resistor pack somewhere that probably failed, I just don't know where it would be.
Do I just need a new control switch, or do I need a new heater fan?
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If I start it on a cold morning and leave it idling for 20 minutes it will finish warming up within a mile or two. But if I just take off driving right after I start the engine, it takes close to 10 minutes to finally start warming the cab up. Is this normal for these trucks or is it possible the thermostat needs to be changed?
I found this service bulletin, which matches a symptom my truck has. Is it possible the rolling fan at cold idle could be keeping the engine from warming up as quickly?
05-4-3 COOLING FAN CLUTCH NOISE - VEHICLES BUILT PRIOR TO 10/1/2004 - 5.4L AND 4.6L ENGINES
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How come with the A/C on I can direct it to different vents but with the heat on it only comes out at the windshield ?? Whats up with that.
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Having issue with heat only working when the temp is at 90? I turn it down one click 85 and it goes cold?
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I have a 2004 Ford F150 and the battery keeps dying. We do not use the truck a lot and it sometimes sits outside for 2-4 weeks without being used. If it sits that long, it might be completely dead, but starts up easily with a jump and then works fine for a while. The battery is a 650 amp Motocraft w prorated replacement from 37-100 mo. The local Ford dealer has checked it several times in the past 2 yr and said it is fine, and that if the truck sits for a couple of weeks the battery will die. Is that right? I am not a car moron, nor am I an expert, but I am concerned that they are missing a small draw somewhere in the system. Should I be concerned about a draw or is this just something that happens to batteries as they get older?
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I thought blend door only adjusted temperature. Mine is manual? System no ECM control. Need defrost....
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My 2001 f150 super crew, the heat only works on speeds 1-3. All 4 speeds blow air fine, I'm talking about the temperature. not the blower. Could it be the heat resistor?
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I have an F-250 Ford, 2006, 6.0 turbo-diesel. Started noticing that my heat only works while running at 70 mph or more and the turbo is at around 15-20 psi. Now that it has gotten cold it is definitely an issue. Truck does not overheat, I am not able to feel heat on the hose after control vlave and I do not feel any vacuum on the line (grey) to the control valve. I have checked for leaks, changed out the fill cap, checked anti-freeze level, pulled control valve just to verify its position when opened (which it seems to stay open). It's getting really cold in the cab of that truck now.
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I just purchased a 2005 F150 (4.6L / 4 door). The lot I purchased it from had picked it up at auction. Tell-Tell signs indicate it was a repo. (Only one key, no fobs, locking fuel filler door jimmied and spring removed, scratches on upper corner of driver's side door and rubber bent back.
The power locks switch on arm rest works on all doors except driver's. The drivers door does lock and unlock manually. I am wanting a good hypothesis before I begin tearing into the door panel.
If the latching mechanism was damaged, it wouldn't lock manually, right? If the electronics were damaged the other doors wouldn't work right? So, my hypothesis is the actuator on driver's door. Do I start searching for/locating possible replacement parts?
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I have an 06 F-150, there is lots of heat but it only blows on defrost. Is this the blend door motor or is it something else?
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I have a 1998 f150 4.6 that has a problem with the heating system. It's blowing out a little warm, but "far" from what it should be. ( on a scale from 1-10, I'd rate it about a 3) I am puzzled because I flushed the radiator, changed the thermostat, and there a no signs of heater core leaks inside,hose leaks on firewall, or radiator/water smell present. I don't know if this has anything to do with it, but I did notice the top radiator hose was hot, but not the bottom. I don't know what else to look for.
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