-   I had the same problem with my 99 Cadillac Seville. The heater core needed to be flushed. Mine was dirty. After flush heat worked fine. This can not be done with just a cooling system flush. The heater core hoses have to be disconnected and then flush the heater core.
I hope this helps. If not your heater core is most likely bad.-   Guest
Jan 26, 2009
-   I replaced my thermostat and yes it was likely sticking, very dirty. However, the same problem exists... grrrrrr!-   cmelmer
2002 Chevy Malibu theft system problem: The horn honks when running in park. the doors do not unlock...
(More)
2002 Chevy Malibu theft system problem: The horn honks when running in park. the doors do not unlock when I turn the car off. Sometimes the horn honks when I lock the doors with the remote.
i am trying to bypass my crazy wiper problem with a toggle switch. i need help figuring out the...
(More)
I AM TRYING TO BYPASS MY CRAZY WIPER PROBLEM WITH A TOGGLE SWITCH. I NEED HELP FIGURING OUT THE WIRING COLOR CODES FOR 02 MALIBU . THERE ARE 5 WIRES.