I have a 99 civic Si with I/H/E/TB/IM, the problem seemed to start after I installed my Spoon TB and Skunk2 IM. Car has plenty of radiator fluid, but I was thinking of flushing it out. It goes down in temp as soon as I start going but while I'm at idle it gradually goes up. What else could it be? thermostat?
thanks,
Charles

 

yeah, your thermostat's probably messed up

 

do you have a fan hooked up?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by primeredbeast &raquo;</TD></TR><TR><TD CLASS="quote">do you have a fan hooked up?</TD></TR></TABLE>

i would start there.
if it heats up at idle, and cools while you are moving, there is nothing pulling air in while you are sitting still. start at the fan.

 

Start with the fan. then thermo then your probably into too deep for the normal person.


Could be a bad waterpump, Ive seen that happen before.

 

if it is only at idle it would be a minor crack like in the head or something because there seams like there is air in the system. thermo would always overheat no matter what but check fan

 

Cool I check that out this weekend, thanks!

 

Or maybe you have an air bubble trapped in your coolant?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by del_sol_tuner &raquo;</TD></TR><TR><TD CLASS="quote">Or maybe you have an air bubble trapped in your coolant?</TD></TR></TABLE>

Could be it, had lots of coolant leak when installed IM. I'm gonna flush it out today.

 

it would replace thermostat i have a 96 ek hatch and i had the same problem.i replace thermostat and it fix it.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NA_B16a2 &raquo;</TD></TR><TR><TD CLASS="quote">

Could be it, had lots of coolant leak when installed IM. I'm gonna flush it out today.</TD></TR></TABLE>
That was my problem. I took off my manifold, coolant came out (creating air spaces). I filled up my coolant, but forgot to warm my car up and turn my heat on all the way without the rad cap on (lets the air cycle out)
00Si

 

When I was looking at the fan it had been jammed up.(probably when I ran over a boulder ) The fan was just stuck, so got it unjammed. The only problem is could the fan motor be burnt up?

I also forgot to let it warm up with the cap off when I filled it up again.

 

u can try a new fan switch it, could have gotten burnt up, if that dont work try gettin a whole new fan bc it could have burnt the fan motor up...

 

Where is the switch that I'll need to replace at?

 

do you have oil in the coolant? or are you burning your coolant? alot of white smoke? if not then cracked head = probably not.
did you bleed the coolant system when you were all done? you might have air in it. if you did do the fans ever kick on? if yah check the thermostat.

 

my del sol was doing the same thing and it was my fan... i just wired my fan to a switch and put the switch in the dash so whenever i want i can just flip a switch and turn the fan on.

 

check the relay

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IVI &raquo;</TD></TR><TR><TD CLASS="quote">do you have oil in the coolant? or are you burning your coolant? alot of white smoke? </TD></TR></TABLE>
No
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IVI &raquo;</TD></TR><TR><TD CLASS="quote">.
did you bleed the coolant system when you were all done?</TD></TR></TABLE>
No

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by j-specB20sol &raquo;</TD></TR><TR><TD CLASS="quote">my del sol was doing the same thing and it was my fan... i just wired my fan to a switch and put the switch in the dash so whenever i want i can just flip a switch and turn the fan on.</TD></TR></TABLE>

How'd that work out? sounds like a good idea.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NA_B16a2 &raquo;</TD></TR><TR><TD CLASS="quote">
No

No</TD></TR></TABLE>

bleed the system of air. theres a bleeder nipple near the radiator hose connecting to the block.

as far as the fans not kicking on and not being anything else check the relay for tha.t

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NA_B16a2 &raquo;</TD></TR><TR><TD CLASS="quote">

How'd that work out? sounds like a good idea.</TD></TR></TABLE>

works like a champ... just keep an eye on the temp gauge and you are set. OR just keep it on all the time... that works too

 

where did you wire in the new switch? where's the old one?

 

what i did was i went to radio shack and got a switch... i cut the power wire for the fan, wired it to the switch, and put the switch under the dash right by my left leg on the panel covering the wires and fuses and ****. i got a lighted swith so that i wouldnt forget that it was on because, just like your lights, leave the fan on and this WILL kill your battery.

 

did you give it a shot?