overheating...top hose hot, bottom cold
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Re: overheating...top hose hot, bottom cold
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Re: overheating...top hose hot, bottom cold
your engine would have melted it(cause you still had coolant, would have been like a slushy). most likely your thermostat gave out.
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Re: overheating...top hose hot, bottom cold
Change the thermostat.
And don't buy a cheapie single-stage thermostat from a chain parts store. They never work properly. Buy an OEM Honda (Nippon Thermostat) dual-stage thermostat from the dealer. Part number 19301-P08-316; $24.
If the heat still blows cold, you've got a sticky water control valve, broken cable, or a stuck air mix door.
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Re: overheating...top hose hot, bottom cold
First thing to do for the heater is to see if the heater hoses (both of them) get hot when the engine warms up.
Next thing to do is to check the water valve operation, which is right on the firewall at the heater inlet hose. Have someone move the temperature slider back and forth, and make sure the cable is moving the valve. There is a black plastic cover over the valve, so you may have to remove that to verify valve operation.
If everything seems to work properly engine-side, then there is a problem with the heater core under the dash.
Next thing would be to check the cable that goes from the temp. slider to the bottom of the heater core box. Make sure it's connected, not kinked, and moves all the levers on the bottom of the box when you move the temp. slider. I know there is at least 1 air mix door inside the heater core box that is connected to its lever on the bottom by a screw, so make sure that screw is in there and tight.
Sorry, no pics, I'm just going from memory from when I replaced my heater core over Thanksgiving weekend.
Also, you would be very smart to flush and refill your coolant with a 50/50 mix of DISTILLED water (NOT tap water) and silicate-free coolant (like Prestone Green).
Next thing to do is to check the water valve operation, which is right on the firewall at the heater inlet hose. Have someone move the temperature slider back and forth, and make sure the cable is moving the valve. There is a black plastic cover over the valve, so you may have to remove that to verify valve operation.
If everything seems to work properly engine-side, then there is a problem with the heater core under the dash.
Next thing would be to check the cable that goes from the temp. slider to the bottom of the heater core box. Make sure it's connected, not kinked, and moves all the levers on the bottom of the box when you move the temp. slider. I know there is at least 1 air mix door inside the heater core box that is connected to its lever on the bottom by a screw, so make sure that screw is in there and tight.
Sorry, no pics, I'm just going from memory from when I replaced my heater core over Thanksgiving weekend.
Also, you would be very smart to flush and refill your coolant with a 50/50 mix of DISTILLED water (NOT tap water) and silicate-free coolant (like Prestone Green).
#12
Re: overheating...top hose hot, bottom cold
damn some people on here can be ********. if u read i said that it first happened in extreme cold. so i checked the hoses going to the heater core and they were frozen solid so a thermostat wasnt needed.
taga250r, ur not anyones mom so be helpful, sarcastic comments arent needed on here
taga250r, ur not anyones mom so be helpful, sarcastic comments arent needed on here
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Re: overheating...top hose hot, bottom cold
damn some people on here can be ********. if u read i said that it first happened in extreme cold. so i checked the hoses going to the heater core and they were frozen solid so a thermostat wasnt needed.
taga250r, ur not anyones mom so be helpful, sarcastic comments arent needed on here
taga250r, ur not anyones mom so be helpful, sarcastic comments arent needed on here
The sarcasm you interpret could be mistaken for frustration since it seems like you're asking the same question without trying the most recommended solution, the thermostat.
#15
Re: overheating...top hose hot, bottom cold
This happen to me today and it wasnt the thermostat. To much water in the antifreeze. It froze my heater core. 20mins of driving before i got heat.
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Re: overheating...top hose hot, bottom cold
The OP complained of massive overheating too, a frozen heater core wouldn't cause that. Also, you should add some anti-freeze before your block freezes and cracks.
#17
Re: overheating...top hose hot, bottom cold
the thermostat and heater core lines were frozen bc of too much water in the antifreeze. i put my car in my garage last night and this morning, both problems were non existent
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Re: overheating...top hose hot, bottom cold
I'll be curious to see how this plays out after you drive it a few more days. Even though the thermostat was supposedly frozen, the ice/slush around it should've melted WAY before the car started to overheat. I have a ScanGuage II and my water temp is consistently around 200 degrees. Ice in 200 degree water doesn't last very long, definitely not long enough for the car to overheat.
Assuming I'm wrong and you really did have that much ice in the system, I would start checking for leaks because I can't see how if your system was frozen that solidly the ice didn't cause something else to crack. Hopefully it didn't dislodge a freeze plug....
Finally, how long had it been since you had driven the car? Even in 20 degree weather, it would take at least a couple days for the water in your system to freeze.
Assuming I'm wrong and you really did have that much ice in the system, I would start checking for leaks because I can't see how if your system was frozen that solidly the ice didn't cause something else to crack. Hopefully it didn't dislodge a freeze plug....
Finally, how long had it been since you had driven the car? Even in 20 degree weather, it would take at least a couple days for the water in your system to freeze.
#19
Re: overheating...top hose hot, bottom cold
I'll be curious to see how this plays out after you drive it a few more days. Even though the thermostat was supposedly frozen, the ice/slush around it should've melted WAY before the car started to overheat. I have a ScanGuage II and my water temp is consistently around 200 degrees. Ice in 200 degree water doesn't last very long, definitely not long enough for the car to overheat.
Assuming I'm wrong and you really did have that much ice in the system, I would start checking for leaks because I can't see how if your system was frozen that solidly the ice didn't cause something else to crack. Hopefully it didn't dislodge a freeze plug....
Finally, how long had it been since you had driven the car? Even in 20 degree weather, it would take at least a couple days for the water in your system to freeze.
Assuming I'm wrong and you really did have that much ice in the system, I would start checking for leaks because I can't see how if your system was frozen that solidly the ice didn't cause something else to crack. Hopefully it didn't dislodge a freeze plug....
Finally, how long had it been since you had driven the car? Even in 20 degree weather, it would take at least a couple days for the water in your system to freeze.
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Re: overheating...top hose hot, bottom cold
You had a sweet tea completely freeze in 20 minutes while it was sitting inside your car? I just looked on my chemistry chart and that means it was -43 inside your car.
Whatever it was, glad it's fixed.
Whatever it was, glad it's fixed.
#22
Re: overheating...top hose hot, bottom cold
why does everyone feel like they have to prove someone wrong on honda-tech. yes its weird and not usual but it did happen since i had almost no antifreeze in my radiator. i havent had a problem since the temps here went back up to 0 degrees. i live in ohio so believe it.
Thread.
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Re: overheating...top hose hot, bottom cold
As far as taking things literally, this is tech and tech problems are generally straight questions, not hyperbole or exaggeration.
I think this thread is more or less worthless to others because of the exaggerations, whether you're talking about your tea, the actual temp, the initial problem, etc.
So, if anyone is having a similar problem, disregard this thread and keep searching.
I think this thread is more or less worthless to others because of the exaggerations, whether you're talking about your tea, the actual temp, the initial problem, etc.
So, if anyone is having a similar problem, disregard this thread and keep searching.
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