Yo Guys
need help.. tonight i just warm up my car for few minutes and it was warm enough and drove out for abit and stop for something, then started the car again and it was cold when i turned up the fan to #4 and turn the heater all the way to hot end and it was still cold.. anyone tell me whats wrong?? where can i check or fix, any ideas?? anyone been experience same problem? pls help me thank you

 

Is the temp gauge showing normal, or is it reading cold as well? How long does it take the car to warm up temp gauge wise?

After your temp gauge reads above the cold mark, the air coming out of the heater should start to get warm. If the temp gauge doesn't move from cold, then your thermostat could be stuck open.

Check your coolant level, low coolant could cause a problem as well.

 

Could be air bubbles in the cooling system, they like to hang out in the heater core.

But the cable going from the temperature control down to the actual valve might be broken or disconnected. What year? 3rd-gen has the heater valve on the firewall kinda below the fuel filter. Have someone move the temperature control while you watch to see if the valve moves. There's also a lever & cable connections in the passenger footwell - way forward & under the console.

 

my car did what yours was doing, but it has only done it once ever , i started the car , let it warm up , NO HEAT at all , drove it to school full blast only cold air , soo mad , but the temp was norm vtec was hitting and everything , then i went out when i was going to lunch and everythign was fine ( weird)

 

You might have to replace your radiator cap..thats what I did when my moms legend was doing that

 

thanks for reply back with informations, really appreciate it... the temp gauge showing normal yes and to warm up the car for 2 - 3 minutes. my coolant level is fine too.
its 1995 integ. Right now i'll see what i can do and will reply back to let u know anything, thanks guys