i had the same problem with mine and all it was is that i dident get the plug all the way in. The bad thing is you have to take the dash off again
you have to take out the whole dashboard
do you need to remove dashboard in 2003 chevy impala to replace heater core
take it to a shop
If it is leaking it needs replacing. If you have no heat and the inlet heater hose is hot and the outlet is cool, it is stopped up and may need replacing, if it cannot be flushed out.
CHECK BLOWER MOTOR, AND HEATER CORE BOTH INSIDE THE CAR UNDER THE DASHBOARD
The heater core in a Volvo S60 is typically located behind the dashboard on the passenger side of the vehicle. Accessing and replacing the heater core usually requires removing the dashboard and other components in the interior of the car. It is a complex and labor-intensive process best performed by a professional mechanic.
drop the steering column, remove entire dashboard.
remove radio, heater control, glove box, dashboard trim & bezels. once you do this you can see a tublar bar which the dashboard secured to. remove the dashboard and the heater core is there in the center
Replacing heater core on a 2001 chevy,cavaliar.
To remove the heater core on a 1992 Grand Marquis, first remove the dash board. Then remove the AC box to have access to the heater core.
where is the heater control valve
You know the heater hose on a vehicle needs replacing when it beings to swell and soften. The heater hose runs from the intake manifold to the heater core.