I had this same problem and was told that the rear ac lines are leaking. It doent make sense. but that is what i was tol $1100.00 to replace the lines I asked why would the rear work and not the front if the rear was leaking and they could not explain.
Low coolant, stuck thermostat, blocked hoses.
Is it blowing cold air only or not blowing any air at all.
i think that it is determined by the position of the sun. cheers-rhys stannard 10DL
no
Third Watch - 1999 Cold Front 3-13 is rated/received certificates of: Argentina:13
Third Watch - 1999 Cold Front 3-13 was released on: USA: 4 February 2002
There is no heater matrix for the back air vents, only and evaporator for the A/C. My suburban always blowed cold until I added an extra rear heater matrix.
Sounds like you need to replace the thermostat.
My 2001 Chevy Blazer was blowing cold air when I had the heat on. My husband flushed the line to the heater core and a bunch of junk came out and now my heat works great. My 2001 Chevy Blazer was blowing cold air when I had the heat on. My husband flushed the line to the heater core and a bunch of junk came out and now my heat works great.
If you feel no air blowing at all (when you are not moving) then your fan is not blowing. If it is blowing air, and it is cold, when the heater is on, then most probably your heater core is leaking, or is clogged. These are easily replaceable and go bad all the time in older cars.
Broken Belt?
Your cooling system is empty of coolant and you must have a large leak somewhere.