civic with b16b overheating

**jspec civic** · 10-12-2010 08:28 AM

Help!!!

guys, i think i have got an oveheating problem on my b16b. temp gauge goes up after driving for over 30mins but only when car is in traffic but not when car is moving also when air con is turned on. fan comes on when it suppose too, no major leaks (except very very little wet spot under the thermostat. i've replaced the thermostat and the switch. all hoses are fine. no coolant lost. I've bleed the coolant 3times. What can the problem be? can the wet spot cause under the thermostat cause the temp to go up?

thanks

**quangsuke** · 10-12-2010 08:35 AM

could have a block in your coolant hose going to the engine...

**markismaximus** · 10-12-2010 08:53 AM

have you checked all the stuff people have mentioned in your 2 other coolant/radiator threads?

http://www.ozhonda.com/forum/showthr...nt-temp-switch..

http://www.ozhonda.com/forum/showthr...an-not-running

**markoJEK1** · 10-12-2010 11:36 AM

With your 'bleeding' method, do you physically see the coolant level go down when the fan turns on , ie thermostat opens at the right temp.

**~Sp33~** · 10-12-2010 03:58 PM

I know you say the fan is coming on when it's supposed to, but what you've listed is a text book case of your fan not working.

Has it recently been installed? Is it pushing instead of pulling air?

**jspec civic** · 10-12-2010 04:00 PM

Originally Posted by markismaximus

have you checked all the stuff people have mentioned in your 2 other coolant/radiator threads?

http://www.ozhonda.com/forum/showthr...nt-temp-switch..

http://www.ozhonda.com/forum/showthr...an-not-running

checkd all that stuff...got all that fixd, car was running til last week..

marko i will have to check that.

sp33 the rad/fan was from the motor swap done acouple of yrs ago..

**ralph_ef9** · 12-12-2010 04:19 PM

i got a same prob with my EF last year, in the end, I found the radiator fan relay sometimes not working.
just replaced with a new unit.

**jspec civic** · 13-12-2010 04:58 PM

Originally Posted by ralph_ef9

i got a same prob with my EF last year, in the end, I found the radiator fan relay sometimes not working.
just replaced with a new unit.

i diff know that the fan works it comes on when it needs too..can anyonr jsut tell me if the wet spot from the thermostat can cause the temp to jump up...i;ve notice after drving, when the fan comes on the temp goes up too...

**ralph_ef9** · 13-12-2010 11:13 PM

if ur fan comes on and temp still goes up...
that can be a lot of thing, first u may loosing coolant, need to bleed the cooling system, faulty radiator cap, head gasket...
have a look the spark plug if they had rust on it.
take out the thermostat and test it.

**jspec civic** · 14-12-2010 12:27 PM

Originally Posted by ralph_ef9

if ur fan comes on and temp still goes up...
that can be a lot of thing, first u may loosing coolant, need to bleed the cooling system, faulty radiator cap, head gasket...
have a look the spark plug if they had rust on it.
take out the thermostat and test it.

thanks.i have done almost the above..the only thing i havent is check the rad cap or replaced it..im not losing any coolant. my rad hose (upper & bottom) seems very tight, feels like its gona burst. Is this normal? whta they suppose to feel like?

**markismaximus** · 14-12-2010 03:34 PM

Originally Posted by jspec civic

my rad hose (upper & bottom) seems very tight, feels like its gona burst. Is this normal?

do they feel like they're going to burst? or look like they're going to burst? if they're ballooning its time for new hoses. Doubt its related to your problem though