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jdmeg_6
01-14-2010, 09:08 AM
OK MY 94 CIVIC IS HAVING HEATING ISSUES.... WEN I WARM THE CAR UP, THE TEMP GOES UP BUT ONES IM DRIVING THE CAR OR TURN THE HEATER ON THE TEMP DROPS AND IT WONT GO BACK UP. IT STAY LIKE THAT ALL DAY. IF ANYONE KNOWS SOME THING I WILL APRECIATED THANKS IA

EmminoDaGreat
01-14-2010, 09:28 AM
Check thermostat.

G.C
01-14-2010, 09:49 AM
You should check out the basic stuff out before replacing your thermostat. Probably which you need to replace.

Check to see if your Radiator Fan is kicking in.

Check to see if you have enough Coolant in your Radiator.

Check to see if your radiator has any air in it. Just run the car with the cap open, if you have any air it will burp it out.

jdmeg_6
01-14-2010, 10:29 AM
the thermostat is new. but im a try running it with out the cap c if it helps out. thanks guys

ilbcnu123
01-14-2010, 02:01 PM
You should check out the basic stuff out before replacing your thermostat. Probably which you need to replace.

Check to see if your Radiator Fan is kicking in.

Check to see if you have enough Coolant in your Radiator.

Check to see if your radiator has any air in it. Just run the car with the cap open, if you have any air it will burp it out.

wouldn't all of those problems make the car run hot? The OP's car is running cold.

boost-freak
01-14-2010, 08:41 PM
you need to make sure all of your coolant lines are clean and corrosion free around the necks were they clamp, that can cause little seperation between the seating surface and mist out coolant day by day driving. and make sure coolant is full and blead of all air when at running temp.

CaTcH22
01-14-2010, 08:44 PM
you need to make sure all of your coolant lines are clean and corrosion free around the necks were they clamp, that can cause little seperation between the seating surface and mist out coolant day by day driving. and make sure coolant is full and blead of all air when at running temp.
x2 :goodjob:

vtecace23
01-14-2010, 08:44 PM
Could have a bad radiator cap, sounds like the system isnt holding pressure. Make sure the thremostat is operating correctly and an oem is best.

Theycall_Metue
01-14-2010, 11:39 PM
You should check out the basic stuff out before replacing your thermostat. Probably which you need to replace.

Check to see if your Radiator Fan is kicking in.

Check to see if you have enough Coolant in your Radiator.

Check to see if your radiator has any air in it. Just run the car with the cap open, if you have any air it will burp it out.
lol run hot ftl.

its simple fix! cover half the front of the radiator with a pice of cardboard.
when your driving, the cold air cause the anti-freeze to cool down too much causing no heat from the air vents.

jdmeg_6
01-16-2010, 08:06 AM
thanks for all the help.

envision
01-16-2010, 02:55 PM
lol run hot ftl.

its simple fix! cover half the front of the radiator with a pice of cardboard.
when your driving, the cold air cause the anti-freeze to cool down too much causing no heat from the air vents.

I don't think this is a good idea

there is a problem somewhere else

Check you heater valve

Pat Ess
01-16-2010, 08:02 PM
thermo..check the heater core.