Ford - F150 :: 2003 - Run Hot / Blows Cold When Heater Is On?
A friend has a 2003 F150 that after starting up will run hot but blow cold air when the heater is on. The truck will run hot for ~ 5seconds then all of a sudden the temp drops to normal range and the heater begins to blow hot. Simultaneously, the oil pressure light comes on when the truck runs hot, then falls to the normal range when the temp drops. I thought perhaps the thermostat is in backward.
View 2 RepliesFord A/C :: 1997 F150 - Heater Only Blows Warm Air?
I have a 1997 ford f 150 lariat with the 4.6 v8 and my engine had a piston slap so I replaced the engine with a used one and I put a new water pump on the engine. My problem is the heater does not get hot and it only gets warm when I get on the freeway and the rpms stay steady for a bit. but when i idle it just blows cool air. the heat door works cause I can turn it to cold air when I'm on the freeway and i just replaced the thermostat so I don't believe its that. It weird because the heater worked fine before I changed out the engine so i cant figure it out. the only thing i can think of is the water pump is bad out of the box. Could it be the belt or does spacing on the water pump have something to do with it. nothing is leaking.
View 7 RepliesFord Super Duty (1999-2016) :: 2005 - Heater Blows Cold Air At Idle?
I've got a 2005 F-350 PSD KR. At highway speeds I get heat coming out everywhere it should. In stop-and-go traffic or at idle, the fan just blows cold air. Once back up to speed, hot air starts blowing again.
The fan stays running and the heat position (lower/upper-vents/defrost) stays the same. Just the temperature of the air blowing thru changes.
Things I know it isn't, thermostat is fairly new, anti-freeze is topped off, and the radiator cap is both good and on like it should be.
It sounds like maybe the blend-door or a vacuum leak according to a few of the posts I found with similar symptoms.
Ford Super Duty (1999-2016) :: 2010 F250 Diesel - Heater Blows Cold Air
The heater blows cold air from the driver side only. Very cold. Vey hot on passenger side.I have read that this is likely a blend door issue. Comments? Fluids are full. I hear slight noises from under the dash like "click click" like a door is trying to activate?? Truck out of warranty. If it is the door I heard the driver side is not as tough to install. Again comments? Instructions?
View 2 RepliesFord - Explorer :: 1995 - Heater Only Blows Out Cold Air
My 95 explorer heater only blows out cold air. I have topped off the antifreeze and just replaced the thermostat. The engine operating temperature is very cold, it won't even come up to the first mark. It is very cold here in Utah but I still can't imagine why the engine won't heat up.
View 9 RepliesFord Excursion :: Heater Blows Cold In The Back
The heat up front blows nice and hot but no matter how I adjust the rear ceiling mounted controls it blows cold in the back. Is this a blend door issue or something with the rear controls? Also, on a side note, one of my rear power vent windows just stopped working too. I guess it's either the overhead switch or the motor back there.
View 8 RepliesFord F-150 - 1997-2003 :: 1998 - Heater Blows Cold?
1998 F150 step side, 4.6 V-8 automatic, 176,000 miles -
Heater begins to blow heat as the engine warms up - heat gauge moves up to normal level - running at speed, suddenly the heater blows all cold, the heat gauge pegs to total hot - the oil light comes on, the engine begins to miss - stop the truck, shut off the motor, wait 10 seconds, start back up and all is normal and away I go. Heater working just fine. Gauges are just fine. Have checked the hoses when it pegged to hot, and they are just warm just as if everything is normal.
Problem is intermittent.
Have changed radiator reservoir cap, thermostat, made sure fluid level and mixture is correct - what else to check? Computer issue?
LS / MKZ :: 2002 - Heater Blows Out Cold Air?
i am having some big difficulties with my car i own a 2002 Lincoln LS v-8, has about 118,000 miles on it. when i bought the car USED the heater or ac didn't blow at all we fixed that all it was a fuse. But know that it is winter time the thing is my cars heater blowsn out cold air. ive noticed some times heat blows a little from the passenger side but not the driver and then if it does get warm (my car) its takes for ever. Know i dont really have a problem with the defrost becaseu in the mornings my windows are defrosted after like 20min. ive been reading alot about DCCV and i want to think thats the problem but i really dont know.
View 2 RepliesFord F-150 (2009-2014) :: 2011 - Heater Blows Cold Air / Not Even Coming Close To Warm
So the other morning I drive the 140 miles out of town to work for the week. when I pull up to the job site the cooling fans were revving really really high! never heard this before. then it went back to normal after I opened the gate and parked my truck and shut it off. I'm driving maybe 5 miles tops to the job and back to the motel every day. however that is far enough that my heater should be warming up and it's not even coming close to warm. it blows cold air. and to compound that I'm not sure the cooling fans are even working. they don't appear to be. Is there a connection here?
2011 xlt 4x4 super crew.....
Camaro :: Car Idles The Heater Blows Cold Air
When my car idles the heater blows cold air but as soon as i throtle it up or drive off it starts blowing warm air, just bought the car the only thing ive checked so far is the coolant level wich is fine.
View 2 RepliesFord F-150 - 1997-2003 :: Heater Blows Hot Then Cold / Moisture Coming Out Tail Pipe But No Coolant In It
I have a 2003 Ford f150 5.4. Heater blows hot, then cold, then hot then cold. When it start blowing cold it pukes out the degas bottle. I have burped it, did the combustion test to make sure not a blown head gasket, the oil clean, there is moisture coming out tail pipe but it has no coolant in it. flushed heater core, pulled water pump off and checked it, its good. Changed thermostat 2 times, put front on ramps to get any air out. I am at a total loss now.
View 8 RepliesGrand AM :: 2002 / Heater Occasionally Blows Cold Air?
I own a 2002 Grand AM GT. With the engine temperature reading around 200, and the heat set at maximum, frequently, for about a minute, I will get nothing but cold air. At maximum heat setting, on one day, there would be hot air. Yet, at another time the air output would be lukewarm.
View 3 RepliesPassat (B5) :: 2003 - Heater Blows Cold And AC System Turns On?
When I turn on the heater on at any temp and fan setting the A/C automatically turns on (compressor and condensor fan turns on) . Engine temp comes up and stays at 190. I can turn up the heat to HI and still cold air blows. All buttons and LEDs work on the climatronic, is it the climatronic that is bad?
View 1 RepliesToyota - Sienna :: 2006 - Heater Blows Cold Air When Idling?
I have a 2006 Toyota Sienna Van that has 111,000 miles on it. I have a problem with both the heat and a/c. If you have the heat on but are just idling, it begins to blow cool air. Likewise, if you run the a/c but are just idling the air begins to blow warm. In either case, if you rev the engine (either in park or nuetral say at a red light), the air gets warmer if the heat is on, or colder if the a/c is on. In other words, the temperature only works correctly if the rpm's are up. Could this be a stopped up heater core.
View 1 RepliesLexus ES 2007-12 :: Heater Starts To Get Warm Then Blows Cold Air
My 2007 es350 77k miles. Heater starts to get warm and then it blows cold air. What could cause this.
View 8 RepliesToyota - Tercel :: 1997 - Temperature Gauge Always Up / Heater Blows Cold
I just bought a 1997 Toyota Tercel 5-speed stick, with 175,000 miles, and the temperature gauge moves from its lowest possible position to its highest possible position when the key is turned on, although the engine does not overheat, and no coolant is leaking or being burned. I replaced the coolant temperature sensor, but the actions of the gauge were not affected. I don't know if it is somehow related, but the heater blows cold, regardless the setting of the temperature dial on the dash. What I might try next?
View 3 RepliesBuick - Century :: 2003 - Heater Only Works When Accelerating / Blows Cold When Releasing Gas
My 2003 Buick Century heater works fine while accelerating but as soon as I release the gas the air begins to cool, swiftly. I have had the radiator flushed and the coolant topped off but the problem persists.
View 17 RepliesFord Super Duty (1999-2016) :: 2005 - Heater Blows Cool Air At 20 MPH?
So my heater works when I'm rolling down the highway. When I'm at about 20 mph or less it blows cool air. Also when it's just idling it blows cool air. What I might have an issue with?
View 6 RepliesCrown Victoria :: 1999 Ford - Temp Gauge Hardly Moves (up) And Heater Blows Warm Air Only
Ford crown vic, 1999, 125k miles, no engine work has been done, did flush cooling system in spring of 2013 and put in a 50/50 mix of coolant and distilled water (from a jug). No problems for the summer of 2013, have been using heater with no problems until around Tuesday of this week.
Car runs fine, no leaks, coolant checks out good. BUT now.. My temperature gauge hardly moves (up) and the heater blows warm air only. If I am driving the gauge will not move, if the car sits running for awhile it will move up some and the heat will get warmer inside of the car. My guess maybe a stuck thermostat?