03 f250 desel heater is hot and cold every 30 seconds?
Check thermostat, if that's ok make sure the system is full of coolant. If you have recently changed a cooling system part (water pump, thermostat, heater core, etc.) then you may have an air pocket in the system which will make you think it is full of coolant but actually is not, thus intermitten heat. Hope this helps.
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Answer . \nThe two hoses going into the firewall are for your heater core. Chances are the core is plugged if one hose is hot and the other is cold. If so, remove both hoses and attach two 3 ft 5/8" plastic see thru hoses on them ( $3) the pour in a container of cooling system flush ($4)into bot…h hoses and let it work. Now take a garden hose and give each side a good blast and you should see all kinds of corrosion blast out. Now do it again. If this does not work, your core probably will need replacing. I hope this helps you. Mark (MORE)
You probably have a poorly insulated section of pipe. It must bebetween the taps and the hot water source.
When the heater is on the headlights and middle console go out and come back on every 30 seconds why and how do you fix it?
Answer . It sounds like a defective relay. Some cars have one, others have two relay centers. One should be under the dash on the passenger side. It may be covered by a plastic panel. They are individually marked and you should check the ones marked HVAC and HDLP. The other center is under the h…ood, next to one of the fenders. Sometimes you can hear a defective relay or breaker clicking on and off: test it by setting up the situation that causes the problem. Be patient and Good luck! (MORE)
Answer . \nThermostat stuck partially open or heater core clogged. Drain and flush the entire cooling system. Replace the thermostat. Install a 50/50 mix of fresh antifreeze and distilled water, and bleed air from the system.
If the car is setting in the sun.Heat builds up in the ducts. With my car, it was Heater matrix clogged with radiator sealant. The workshop cleaned it and it's start working fine!
How can you tell if your heater core is not working for a Chevy Malibu 2000 It blows cold air instead of hot air when on hot but every now and then it works then stops Why?
Make sure coolant level is correct\n. \n Answer \n. \nIt could be a clogged heater core,maybe it is a birds nest or a rats nest if the car was stored.Usually replace the heater core and it will solve it or maybe it is the radiator itself needing flushed.also it could be the switch is not thro…wing to the position it should be.If the car was in cold climate before maybe it froze over and then was dooshed with heater core repair stop leak.Thats the best I can guess... (MORE)
By calculating the the load required on the existing gas piping to make sure you can get complete combustion so no one gets asphyxiated and double check the flue requirements so there is no possibility of spillage of toxic fumes
Remove glove box door. Behind that is heater core. Remove the cover,the core is right there. Under the hood, against the firewall you'll see the hoses going to the core. Remove 2 hose clamps then the core will come out from from the inside of your truck.
Answer . You have a mode door that is stuck or the actuator is not working properly. Rick http://free-auto-repair-advice.blogspot.com/2007/11/finding-repair-information-you-need-at.html
Poor circulation from a faulty thermostat or a plugged heater core.Be sure the coolant reservoir is not empty.
Yes - BUT - the effort to attach something to the actual blend door, and have to keep it functioning is not going to be easy. I would strongly suggest a repair. The motor itself prices about $35-50 (more at a dealer). I'd guess you could find one for less at a local auto salvage/junk yard. And t…he repair itself is easy - 20-30 minutes and you're wife will be thanking you! One of the times you'd be much better off not trying to work-around a true fix. See "Related Questions" below for more (MORE)
Check your antifreeze/coolant level in your radiator. If it is "low", there will not be enough coolant to "flow" through the heater core, to produce any heat. If it is low, refill your system with the proper mixture of coolant and also check for any coolant leaks.
Check the fuse(s) first . Blower motor fan - might come loose from the motor shaft . Blower motor itself The reason the A/C or the heat won't come out is probably the fact the fan is busted. My advice is to change the fan.
Personally I would not as the cold water could thermo shock the heater and if you have a glass lined tank it will crack it and shorten the life of the tank. . I would follow the manufacturers instructions
Personally I would not, as the cold water could thermo-shock the heater. And if you have a glass-lined tank, it will crack it and shorten the life of the tank.. I would follow the manufacturer's instructions.
30 degrees Celsius isn't cold at all, in fact it is hot, but not extremely hot. It is the average temperature during summer in Australia, though sometimes it can reach 42 degrees! So yes, it is considered hot-ish. It is equivalent to 86 degrees Fahrenheit and 303.15 degrees Kelvin
more than likely the coolant level is low otherwise check that the thermostat is functioning properly. if neither of those seem to be the prolem than you possibly have a blocked or bad heater core
I always ask the same question and I am in the HVAC business and I already have seen other companies advertise that they replace / repair "Hot water heaters" and all I can say is "Huh?"
My Silhouette had that same problem. I found that the coolant level was too low and not circulating through the interior heating system. Once I topped off the coolant it worked properly. I just completed repair of the original problem that caused the coolant level to go down in the first place wh…ich was a bad lower intake manifold gasket. It now works great and doesn't consume any more coolant. -Tim (MORE)
why does the fans not work when car is running (on the 1999 Montana car) most likely a blown fuse or worst case the fan is no good. to the original question on why the air is cold at idle than warm during acceleration most likely low coolant is causing this ****************************************…******************** Low Coolant Probably caused by a blown head gasket. I had the same problem with my Montana until I had the head gasket replaced. It started the way you described for about a year and kept getting worse and worse over time. The worst part of it was that it began becoming noticeable at about 40,000 miles and I didn't have the head gasket replaced until about 67,000. Good luck and have it checked for a head gasket leak. (MORE)
can you please clarify what you mean, do you mean that the front heater blows cold but the rear blows hot or do you mean that when the heating is on cold it blows hot? many thanks paul
there a temp. control motor that control the a/c & heater replaced motor price is about $184.50 for the part
blend door is possibly stuck or linkage is broken. turn fan off and switch from hot to cold slowly while listening under dash. you should hear the door close if not check there firstType your answer here...
You could just need to flush our your coolant pipes. Detach both hoses leading to passenger side firewall and spray into one of the pipes with a hose. It will come out the other pipe. This solved my problem in my '91 Ranger.
You're hot N ur cold. You're yes and you're no. You're in and you're out. You're up and you're down. You're wrong when you're right. It's black and its white. We fight we break up. We kiss we make up. YOU
Fire grows in 3 dimensions, therefore it is going to increaserapidly as time goes by. Furthermore, as the temperature increases,things burn quicker, and there can be explosions
either your hot water heater has been installed incorrectly or the thermostat has been set too low. Sorry to butt in BUT there is NO THERMOSTAT on a hot water heater there is a AQUASTAT and sometimes the heater short cycles just to maintain the SET temperature
You have an air pocket in your cooling system. You either need to bleed out the system or, if it keeps reoccurring, replace either the intake or head gaskets. Also, try replacing your cap, it normally isn't the problem but hey, you may get lucky. A leaking cap will let air in also. Air in the system… gets in the hose by your thermostat or water pump and keeps water from flowing to the heater core. Water gets trapped in the block and overheats. (MORE)
likely bad thermostat fairly cheap fix although other more major things possible & also check antifreeze level
Well 30 C is hot, 30 F is cold. That depends if it is 30 degrees Celsius or 30 degrees Fahrenheit.If it was 30 degrees C then it would be hot because it is around 85degrees F. If it was 30 degrees F....then it would be darn cold.
The heater on your 99 olds intrigue is squealing and no hot or cold air will come out what will fix it?
Pull the blower motor out and check both the motor, the blower wheel and the housing for any trash that may be stuck in it................
most ford deiels have a block heater . take a look between front grill and radiator to see if an electric cord is rolled up and hidden there . pre 25 models the cord was in front of radiator on drivers side . most now are in front of radiator on passenger side . sometimes this cord is hard to g…et at as they are just rolled up and hidden there for shipping purpose . once you find the cord just unroll it, and position it thru grill or bumper for easy access when u want to use it (MORE)
most cars have two sections in the blower box if you want heat vacuum oprated valves direct air through heating coils,same with air conditioning vent from out side. if you have vacuum leak you could get both cold and hot air. depending on which one is more extreme depends on which one you feel most.… (MORE)
Because you need to bleed the cooling system. You should have a plastic bleeder screw right beside the radiator cape that you need to remove and let the air out, while filling the radiator. Do this while warm to make sure the thermostat is open.
The most common cause of this is a faulty heater valve. These are simple and cheap to replace. I bought a new one through eBay for Â£12. You need to open the bonnet, the valve itself sits in front of the windscreen and has 2 rubber pipes at the front coming from the engine and an electrical connec…tion coming from the side. Disconnect the pipes and pull of the connector. Ease out the valve (this can be a bit fiddly), fit the new one, reconnect the pipes and the connector. Start your engine, and when its warm top up your water as you probably lost some. And that's all there is to it. Should take no more than 20 mins to do and cost less than Â£20. Good luck. (MORE)
My central heating system blow hot air then cold air. Replaced the thermostat. I turn off the heater when it blows cold and turn it on in 30 minutes and it blows hot again for a little while. Help pls?
What type of system do you have? Heat pump? With or without supplemental electric strip heat? Warm air furnace? Need to know in order to help.
check thermostat to be sure enging is getting hot. Heater control on dash opens doors to direct air flow. check that cables are working behind the dash control. you should hear the doors open and close. Also there are vacume operated doors. Srart with replace vacuve lines on engine. At the front …of vans, as you open the hood there is a round plastic vacume chamber. It is easy for the vacume line the come off there. There are "vacume engines" that make use of the vacume to open the doors. These can wear out. Mine has always been vacume lines either broken or disconnected. (MORE)
I am not sure how realistic "every 30 seconds" is, but here goes.\n\n. 30 seconds is 1/2 minute, so there are 120 doublings in an hour. The answer, therefore, is 2 120 , or about 1.3 x 10 36 . (Assuming the "30 seconds" is realistic, it is not realistic to assume that there will be enough food for …the bacterias to double this far.)\n I am not sure how realistic "every 30 seconds" is, but here goes.\n\n. 30 seconds is 1/2 minute, so there are 120 doublings in an hour. The answer, therefore, is 2 120 , or about 1.3 x 10 36 . (Assuming the "30 seconds" is realistic, it is not realistic to assume that there will be enough food for the bacterias to double this far.)\n I am not sure how realistic "every 30 seconds" is, but here goes.\n\n. 30 seconds is 1/2 minute, so there are 120 doublings in an hour. The answer, therefore, is 2 120 , or about 1.3 x 10 36 . (Assuming the "30 seconds" is realistic, it is not realistic to assume that there will be enough food for the bacterias to double this far.)\n I am not sure how realistic "every 30 seconds" is, but here goes.\n\n. 30 seconds is 1/2 minute, so there are 120 doublings in an hour. The answer, therefore, is 2 120 , or about 1.3 x 10 36 . (Assuming the "30 seconds" is realistic, it is not realistic to assume that there will be enough food for the bacterias to double this far.)\n (MORE)
The heater core may be plugged. Flushing it may help. Disconnect both heater hoses from the engine, fabricate a fitting to attach a garden hose to one of the hoses, direct the other hose into a pail, gently turn on water and flush it until it runs clear then swap hoses and reverse flush until clear.… Reattach hoses to engine and refill reservoir. (MORE)
It is because your heater is having to heat up so its blowing cold air out while its heating up.This means your heater is not very efficient and it needs to be checked .
Temperature on the heater needs to be higher. Did you get the same size as the old one, or a smaller one?
The two pipes going into the heater should be marked with either Hot and Cold or a H and C. There should be a shut off valve on the cold side, but sometimes there is one on both sides. If the piping is visible, you can follow one or the other to where it comes into the house. The water heater is usu…ally the first thing the water line runs to. (MORE)
Either the temperature blend door is not working, the thermostat is stuck open or you are low on engine coolant.
Well the heater could be because you have low engine coolant or the thermostat is stuck open so the coolant will not get heated up. As for the AC sounds like you are all out of free-on.
depends if you are using any detergents some say cold some say hot and some say in the pot nine days old if I was you I would use hot then cold and then hot and cold because then it would expand and contract and hopefully loosen up all the debris and if its a water heater core I would use white vin…egar. (MORE)
Why wouldn't there be? You specifically ask about a 250... as if you know why there is one on a 350... and so on.. If you do, the answer is the same. If you do not, why didn't you ask why there is a block heater plug on diesels in general..
Hypothetically I guess but I'm pretty sure you would be very near dying, if not beyond the point of no return already,
It sounds like it may not be working at all. Does the warm air get warmer that the ambient air outside your car? Does it get colder than ambient air in the cool cycle? It sounds like it is just passing the outside air through the blower but doing nothing to it. Possible blown fuse in the fuse box un…der the dash or in the fuse box under the hood. If it does get colder or warmer at the outlets of the AC system, then you could have a couple of wires reversed, or another problem that requires on site inspection to find. Take it to a repairshop. (MORE)
Well on average people blink once every ten seconds so three times in 30 seconds :)
coolant level could be low not letting it circulate through the heater core, causing it to blow cold. Also, if the coolant level is low it will in turn overheat.