"intears" wrote: coolant problem 2002 ford taurus
i drive the as many miles as i wish temp gauge never reaches the red.
As soon as i turn the car off water gushes from the overfill resevoir.
Have changed:thermostate,water pump, relay switches, heat
sensores to no avail. there is no oil in the fluid so i dont feel it
is a head gasket. any suggestions?
When the engine is turned off, coolant flow stops and residual
heat in the head heats up the coolant some more. The coolant
expands when heated, forcing some into the external reservoir.
If the coolant comes boiling into the reservoir, the head is hotter
than it should be. This may be the result of lean burning, caused
by insufficient fuel pressure, a leaky intake manifold, a stuck IAC
actuator or an inoperative EGR valve.
Wendy & John.