i have notice this problem. it comes and goes. but i know i still have it. sometimes while im driving the temp gauge will almost reach the red. then it will drop back to normal in about 1min or so. this doent happen all the time, only sometimes. the fan comes on and is working. i recently changed my themostat. also recently flush my radator. dont really know the source to this problem.
89 crx si with sohc zc

 

gauge might be going bad, or faulty wiring. thats where I would look.

 

Just to be on the safe side try using water and water wetter instead of coolant/ water mix and wire your rad fan to run constantly. I had a problem with overheating when I installed the turbo this helped a great deal.

 

how will i go about wiring my rad fan to run constantly. dont know where to tap the wires

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by roterx7 &raquo;</TD></TR><TR><TD CLASS="quote">how will i go about wiring my rad fan to run constantly. dont know where to tap the wires</TD></TR></TABLE>
power/ground to a switch to teh battery

correct me if i'm wrong

 

so im making a switch to switch on the fan from the inside? not to the ignition, so when i turn my key is already on. cuz i think i mght wanna do that one insted of the switch cuz i might forget to flip it on

 

Heres what you do. Unplug the Engine Coolant Temperature Switch from the thermostat housing and take the plug and put a wire between the 2 slots. This will run the fan constantly whenever the key is on.
I'll take some pics later to clear up anything that wasn't understood.

 

Have you checked your radiator hoses to make sure they're not clogged which is making the water not flow right? I took mine to my local radiator and exhaust shop and got my hoses changed they checked the pressure, flushed out the radiator and they also welded it for no leaks I got charged like 50 bucks though...

 

can i see thoes pics?

 

Hey! try checking how your fan is hooked up, because I had mines hooked up backwards and instead of pulling in the air it pushed the air out and that caused my over heating problem, not enough air flow.
Put your hand behind the fan to feel it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88 Crx Si &raquo;</TD></TR><TR><TD CLASS="quote">power/ground to a switch to teh battery

correct me if i'm wrong </TD></TR></TABLE>

your right