imported_trackhack

So far you've replaced both the rad and the thermostat and I'm assuming flushed and filled the system with a new 50/50 mixture of coolant/distilled water. Also, unless the waterpump is leaking there is no use in changing it as it should still operate efficiently.

I'm surprised no one has mentioned checking the relief pressure of the rad cap. Test the rad cap to see if it holds the specfied pressure. (for your car I believe it is 1.1bar or approx 16lbs)
If you have the proper tools, pressure test the cooling system to check for any leaks, whether they are external or internal. For piece of mind you could also do a compression test on the engine to verify that the head gasket is still in good shape.

Hope this helps.

Middlemiss

iTrader: (2)

Thank you very much again , Trackhack

Middlemiss

iTrader: (2)

So i just drove about 20 mins of hwy driving, the temp was perfect right below half.. then i arrived at work - i let it idle for a bit to see if fan would come on, and it didnt even though the temp got higher and higher.. it was about 3/4 the way up and still didnt come on.

Now the funny thing is yesturday when i installed the rad and thermostat the fan worked. The fan is activated by a heat activated switch correct? Is that the small bax that bolts up to the rad on the top left corner? Im going to test this fan tonight..

Im hoping thats the problem.. The fan is there to cool the engine when airflow is not present correct?

Thanks

imported_silver_devil79

dont run a 50 to 50 mixture-
run more water so it will cool easier when passing through the rad
also add this fluid called water something- I forget what it is called - jrp has it on their shelf - you can run on water alone if you add that fluid its a small pink bottle.

zeeman

iTrader: (1)

water wetter?
The fan is activated by the thermoswitch (fan switch) which is located in the thermostat housing. Try jumping it with a small peice of wire to see if it works, insert the wire into the two prongs on the plug and then start the car, the fan should come on right away.

imported_silver_devil79

thats it water wetter

just remember to put 50/50 ratio back in in the winter

Middlemiss

iTrader: (2)

Is it possible that the sensor could be off - which activates the fan?

zeeman

iTrader: (1)

yeah, thats what i am saying....unplug the thermoswitch in the thermostat housing (while the car is off) and jump it. If the fan comes on when you start the car then its working, but if not then it probably needs to be replaced. I had the same problem not too long ago with my b16 and it only cost like $50 from honda and took about 5 minutes to install.

Middlemiss

iTrader: (2)

Well - its the rad fan switch sensor.!!

imported_1990hondacivic

remember when u replace the timing belt to do the timing belt tensioner too

when i did my timing belt my tensioner would hardly turn

it's like an extra 60 bucks or so

1ofAkind

i had same problem 2 years ago and it turned out to be my rad.it crumbled like girl scout cookies when i rubbed it

1ofAkind

i hate same problem 2 years ago and it turned out to be my rad.it crumbled like girl scout cookies when i rubbed it

imported_trackhack

Your making this too easy.. what are you doing rubbing girl scout cookies? LOL J/k

1ofAkind

i hate same problem 2 years ago and it turned out to be my rad.it crumbled like girl scout cookies when i rubbed it