2003 Mercury Grand Marquis "defrost" Questions

Defrost wont work Rear defroster? try the fuse box first. Front defroster? could be a disconnected actuator lever to divert air up to the defrost vents

Climate Control - Heat and cool work fine. Air flow is directed to defrost /floor. No indication (Sound or sight) that the vacuum diaphrams are being activated. The display on the dash matches the ...

A/C blows out of the defrost & floor I have the same problem , At first i blows out of the vents then all of the sudden it goes to the defrost then the floor then back to the defrost and so on ,,,

Air only blows to defrost I have a 1984 Grand Marquis. The air works good, cool, but it is only blowing out of the defrosters, very limited amount to the vents. How do I fix this? Thanks The problem ...

ac blows out defrost putting out codes 051 053 any clues on what these codes mean Unsure of codes as they should have 4 digits, but generally air only coming from defrost = vacuum leak, bad vacuum ...

A/C and heat only blows through defrost and now A/C quit altogether Defrost is the default direction when your vent controls aren't working. Chances the vacuum line that goes to the controller has

I have a 2007 Grand Marqis ls. The AC does not work and it blows hot air constantly only from the defroster. What is the problem? Only blow hot air and only form defroster. You may need a recharge on ...

ac system goes to the defrost vent when on max ac or regular ac sometimes moves to floor area Heater ducting is designed to fail in defrost mode. Look for lose or leaking vacuum hoses. The you ...

2004 grand marquis where the a/c is only blowing on the defrost and floor at the same time. When you push just floor or panel it does not change it stays on defrost and floor. please help either a vac

2006 Merc GM, air flow out the defrost only problem. 2006 Mercury Grand Marquis Regardless of my EATC output setting (floor, vent, AC, defrost, defrost/floor), everything works fine at idle and in ...