low water temp

[blk_boxer]

Hi all.

Lately ive noticed that the water temp drops all the way down when the heater is on and it's cold outside...is this normal or could i have water pump problems? i am running honda coolant.

1999 honda civic cxi 130,000km

thanks
Steve

[EuroDude]

First thing to check is the coolant level - check the reservoir.

Then replace the Thermistat (located under the throttle body area, follow the coolant pipe to the engine). Mine went at around 130000-150000.

[e240]

Hi all.

Lately ive noticed that the water temp drops all the way down when the heater is on and it's cold outside...is this normal or could i have water pump problems? i am running honda coolant.

1999 honda civic cxi 130,000km

thanks
Steve

It does happen. The heater takes it heat from the coolant.
Its a trick thats used when the car's overheating...Switch on heater...
and it'll help with water temps.

It should reduce the temperature but not drastically, should still stay around
60~70 degrees...but the OEM temp guage isn't exactly accurate.

[kayot1k]

if it happens esp at cold nights.
best bet is the thermostat.
in my old car i yousta run just water with an open thermostat all the time.
during winter nights when im driving temps drop pretty low compared to normal idle temps.

[blk_boxer]

Thanks guys
sounds like changing the thermostat may be a good idea. Any ideas on the lifespan of a water pump? Any easy way to test them?

[EuroDude]

Water pump should be changed every 100,000km with the Timing Belt