A water thermostat stuck open. Air in the heater hose lines (caused by low radiator coolant). Air temperature (mechanical) control cable not opening the heater hose water valve (under hood).
Check the temperature sensor
Probably a bad starter solenoid.
There are only two possibilities for the water leak in the 1993 Mercury Marquis. The car could have a leak allowing rain water in. Or, the drain for the ac could be stopped, and condensation is leaking into the car. The condensation is your most likely cause.
$20.00 at advance auto parts
The correct type is 134A and should be listed as well as the capacity on a decal on the rad support or under side of the hood
Bad fuse
The air conditioning will turn on with certain heater settings, typically any setting that mixes with the defroster. This to help remove moisture and improve the effectiveness of the defroster.
Why the heater or defroster may not work in a 1993 Chevy Caprice Classic because of the heating core is going out.
There are several things that can cause your 1993 Jeep Grand Cherokee driver information Center not to work. The most common cause is a blown fuse.
In a 1993 Mazda Miata, the fuse for the rear defroster is located in the fuse box, which is typically found under the dashboard on the driver's side. You can identify the correct fuse by checking the fuse diagram on the cover of the fuse box or in the owner's manual. Look for a fuse labeled specifically for the rear defroster, usually a 15-amp fuse. If the fuse is blown, replacing it should restore function to the rear defroster.
usually the factory alarm
well if its your head lights it maybe your DRL
to the right of the steering wheel last button
Follow the wire from the defrost into the hatch. I found a 1992 240sx fastback which had a cut line.
Does a 1993 Grand Am have air bags
According to one of the Ford websites : For a 1993 Mercury Grand Marquis , 4.6 liter V8 engine : The spark plugs are gapped at ( .054 inch ) * confirm with the Vehicle Emission Control Information ( VECI ) decal located in the front of the engine compartment
how do i replace a water hose in 1993 pontiac grand am