Honda Car Forum

TeGGer® wrote:
> "DesignGuy" <dontbother@nowhere.com> wrote in
> news:AiJQd.7373$tl3.1561@attbi_s02:
>
>
> > Actually, I didn't know that. I read otherwise at
> > http://tegger.com/hondafaq/overheati...ndex/index.htm
:
> > "Start the car and turn on the AC (if so equipped). Both fans (AC
> > radiator and regular radiator) should turn on.
> > If the radiator fan is not turning on, the relay, wiring or fan
motor
> > is bad or power is not getting to the fan relay."
>
>
> Hey Remco, is a revision necessary there?
>
>
> --
> TeGGeR®
>
> The Unofficial Honda/Acura FAQ
> www.tegger.com/hondafaq/

Tegger, Remco I just checked my 94 Civic(95 engine)
and with cold start with a/c on the a/c fan runs but
the rad fan does not run. It takes more than 15 min
for the engine to warm up enough for the rad fan to
come on. (temperature about 60F) My rad fan starts
at about half scale on temp gage.
Ernie

ernests131@charter.net wrote in
news:1108594115.484002.237140@f14g2000cwb.googlegr oups.com:


> Tegger, Remco I just checked my 94 Civic(95 engine)
> and with cold start with a/c on the a/c fan runs but
> the rad fan does not run. It takes more than 15 min
> for the engine to warm up enough for the rad fan to
> come on. (temperature about 60F) My rad fan starts
> at about half scale on temp gage.



Like I said...

The rad fan will come on only AFTER the coolant temperature has reached
about 190F.


--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

mike-r@earthlink.net (Mike) wrote in
news:mike-r-1602050310480001@dialup-4.249.168.112.dial1.washington2.level
3.net:

> In article <PH8Qd.70$tl3.28@attbi_s02>, "DesignGuy"
> <dontbother@nowhere.com> wrote:
>
>> I believe I've got a bad thermo switch/sensor in my 1995 Honda Civic
>> LX. The radiator fan does not come on when the AC is switched on
>> (though the compressor fan works okay).
>
> If you've come to the conclusion of a faulty radiator fan circuit
> based on activating the A/C, listen up. The radiator and condenser fan
> circuits are isolated from each other. Not all Hondas run both fans
> simultaneously when using the A/C system. Your year Civic does *not*.
> They occasionally overlap in operation when normal engine fan cooling
> is needed with the A/C running. So unless you're having other real
> issues with the cooling system, save your money...
>


Just in case it got missed by the OP the first time, I'm reposting what I
said the other day:

"Personally, I think you're barking up the wrong tree here. 1 ohm or 8 ohms
means nothing. If the temp gauge never gets past 1/3, the rad fan WILL NOT
START NO MATTER WHAT.

"If you simulated the heavy stop-and-go traffic like I said for AT LEAST 5
MINUTES, and the temp gauge DID NOT RISE, then your engine IS NOT HEATING
UP ENOUGH to make the fan come on.

"I do believe you have a bad thermostat. Replace with new **OEM** for $20,
then report back, BEFORE you spend bigger bucks on the thermoswitch."



--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

>
> Just in case it got missed by the OP the first time, I'm reposting what I
> said the other day:
>
> "Personally, I think you're barking up the wrong tree here. 1 ohm or 8
ohms
> means nothing. If the temp gauge never gets past 1/3, the rad fan WILL NOT
> START NO MATTER WHAT.
>
> "If you simulated the heavy stop-and-go traffic like I said for AT LEAST 5
> MINUTES, and the temp gauge DID NOT RISE, then your engine IS NOT HEATING
> UP ENOUGH to make the fan come on.
>
> "I do believe you have a bad thermostat. Replace with new **OEM** for $20,
> then report back, BEFORE you spend bigger bucks on the thermoswitch."

Yep, got it - thanks Tegger.

The thermoswitch was only around $20, I did go ahead and replace it. Based
on what you've said, it was probably good and didn't need replacing.

If I replace the thermostat I'll be sure and get an OEM unit. But I suspect
that the engine is just not getting hot enough. The temp guage goes up to
1/3 shortly after starting up and stays there, never going higher.