Re: Engine cooling problems
 

If the car is running , the water pump is running faster so more coolant is
being circulated. Check to see if the electric fan is running at all.

Since the AC fan is behind the radiator it may be drawing air through the
rad thus cooling the car, based on your obervations.

You can put 12 volts to the fan to see if the fan is faulty. Be careful..
"imabug" <BLAHeugenem@ix.netcom.com> wrote in message
news:Xns93BFE938AF663eugenemixnetcomcom@198.99.146 .18...
> The car: 1991 Honda Accord LX
>
> The symptom: The dash temperature gauge starts to gradually climb to about
> halfway betwen C and H. Usually stays there, but will climb slightly if
> left idling.
>
> Previously it used to climb to just 1/3 the distance above C and stay
there
> no matter how long I idled or how fast/slow I was going. Recently I've
> noticed that the temperature gauge will climb to about halfway between H
> and C while I'm idling. Once I start moving, or if I have the AC on, it
> will usually stay about 1/3 above C.
>
> I have also noticed that when I start the engine after it's been sitting
> (so it's cold), the temp gauge immediately climbs to the 1/3 level (the
> previous normal operating level). Before, the temp gauge used to slowly
> climb from C up to the 1/3 level as the engine warmed up.
>
> What I've done: Both of the fans work (tested by turning on the AC and
also
> letting it idle until the fans turned on). Just had the coolant flushed
> and radiator cap replaced. Radiator was replaced a couple of years ago.
> Thermostat seems to be working (upper coolant hose becomes hot to touch).
> No unusual whining or roaring noises coming from the water pump area.
>
> Any suggestions as to where I might look for the problem? Originally I
> thought maybe the thermostat or water pump had gone bad on me. I'm
> thinking maybe there's a bad temperature sensor somewhere. Could still be
> the water pump I suppose.
>
> I appreciate the suggestions.
> Eugene

Re: Engine cooling problems
 

"7th Gener" <wongw6@hotmail.com> wrote in
news:qr4Ta.5464$1I5.389351@news20.bellglobal.com:

> If the car is running , the water pump is running faster so more
> coolant is being circulated. Check to see if the electric fan is
> running at all.
>
> Since the AC fan is behind the radiator it may be drawing air through
> the rad thus cooling the car, based on your obervations.
>
> You can put 12 volts to the fan to see if the fan is faulty. Be
> careful..

Both of the fans work. If I let the car sit idle, the temp gauge climbs up
to about 2/3 above C and then the fans kick in. Temp gauge then drops back
down to the 1/2 mark. If I turn the AC on, both of the fans also turn on.

Eugene