lower radiator hose cold
#1
lower radiator hose cold
I have a 99 civic ex coupe with the stock d16y8 and i have no heat. I changed the thermostat twice, flushed the heater core, flushed the coolant system, and i still have no heat. The upper radiator hose is hot, but the one coming from the thermostat to the radiator is ice cold, even when i drive over 20 miles. Its starting to get cold and im trying to fix my heat. is there anything else i can try? A local shop wants to charge me $500 to take apart my dash to make sure the vents are opening correctly.
#6
Re: lower radiator hose cold
The cars temp stays below half, it never overheats. I used a Gates thermostat, and now im using a stant.I tested both before i put in in boiling water and both opened. I installed a new timing belt/water pump a few months ago. how would i know if my water control valve is messed up? I had a friend who put the valve to full heat, and its still not hot
#7
Honda-Tech Member
Re: lower radiator hose cold
The cars temp stays below half, it never overheats. I used a Gates thermostat, and now im using a stant.I tested both before i put in in boiling water and both opened. I installed a new timing belt/water pump a few months ago. how would i know if my water control valve is messed up? I had a friend who put the valve to full heat, and its still not hot
id have to guess air in the system, personally because the tstat not opening would not affect flow to the heater core (both in in and the out lines to to and from the heater core are before the tstat housing) and the water valve broken or sticking would not prevent flow to or from the rad. does your engine have a bleeding port near the upper rad hose? also bleeding the coolant with the front jacked up helps.
let me know if you want more or clearer info
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#8
Re: lower radiator hose cold
Pm'd you. My d16y8 doesn't have a bleed valve on the radiator but I searched and saw that you have to jack up the front of the car and top off the radiator reservoir with the Car on. Does anyone have experience with this?
#9
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Re: lower radiator hose cold
Do exactly what you just said. There is ALSO an EXTENSIVE FAQ at the top of the forum that should have a link or two that outlines it. It may even have pictures.
#10
Re: lower radiator hose cold
i have a 2000 Honda civic LX and the upper radiator hose gets hot but lower hose stays cold after driving car around for awhile. i'm trying to find out the proper way to bleed the cooling system. there is no bleeder valve on engine also.
#12
Re: lower radiator hose cold
3 year old thread being put back to bed. /thread
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