Unfortunately the heater box as a whole needs to be deinstalled. Even though you can see the motor from the engine compartment, it will not fit up and out of the cowl vent area...( I've tried twice...)
If the car has A/C, its a bit more difficult. The non-A/C version is simpler, the flimsy plastic tray must carefully be removed from the cowl area under the hood. The radiator must be drained. There are two medium size hoses that run from the engine compartment through the firewall and to the heater core. You can find them and the clamps that hold them very near the gas pedal. Its a good idea to just cut them and replace them with new ones so they don't fail later. If you want to reuse the ones you've got, you must be VERY careful to loosen the hose from the pipe that goes inside it after you loosen the clamp. Sometimes I resort to using a small screwdriver to slide between the hose and pipe to break the friction of years of attachment. You will also need to deinstall the radio to access the two screws that hold the heater control mechanism in place. The fan knob and vent/heat control knobs just pull straight out of the dash. There is also a pair of wiring plugs above the gas pedal that must be disconnected. (yellow, brown, and white wires?) There is a plastic bracket between the dashpad and the heater unit that has one screw through it. There are 4 screws with 8mm heads under the hood near the fan motor itself that are probably obscured with sealant. They hold the heater unit in place. I've found that a 1/4" drive ratchet, short extension, and short socket work best for removing these screws. the unit will likely be held in place by the sealant around the mounting flange after you remove all the screws. When you dislodge it, be careful of the control tab on the bottom of the unit that opens and closes the floor heat flapper, its easy to break it off. The blower motor itself is held in the heater unit by only one screw.
Reinstallation is mostly just the reversal of the procedure. You will need to apply some sort of sealant to the mounting flange to keep water from getting into the car after your done. I often use weatherstripping ribbon that you might get from a home improvement or hardware store.
If your car has the knee bar/ tray under the dash... you should try to find a Bentley Manual to follow the removal procedure. I have found that you have to disassemble a major portion of the dash to access the mounting screws for the kneebar.
They are generally located close to or near by the blower motor.
Directly behind the engine, on the middle of the firewall.
Look behind the engine at the center of the firewall.
also check the AC clutch check for blown fuse... a possible bad blower motor relay
under the hood on the fire wall.
It is in the middle of firewall between the engine compartment and the passenger compartment.
The blower motor for this vehicle is located on the heater plenum approximately in the center of the firewall. It is located near the top of the engine compartment. The motor is covered by a plastic cowl that is secured by six bolts.
The blower motor is removed from under the hood. Against the firewall just to the left of center you will see the blower sticking out. Five 5.5mm bolts hold it on.
The blower is mounted just above the passenger's toes, next to the right hand side of the car, under the dash. Disconnect the electrical connector. Remove the three bolts (vertical) that hold the blower motor up into the blower housing, and the motor will come straight down into your hand with the impeller attached.
You need to take a 12 Volt circuit tester and trace back from the motor; you must not be getting current. Test the switch and the ground to the motor also. Mark
In the engine compartment. Center of the firewall behind the engine.
On a '97 it's accessible under the hood, about top center of the firewall.
The control module for the blower motor is under the glove box inside the heater box.
It is probably no longer a rsistor but a transitor control model on the fire wall.
There isn't one. The clutch is cable-actuated.
Look under the hood,passenger side at the firewall, you will see the blower motor,directly to the right going towards the drivers side ,you will see the blower control module, then the little small relay will be the next part over.
fuse #5 on the relay panel on firewall left and above blower motor.
No air flow from the heater duct of an 88 Chevrolet Corvette is often caused by a defective blower motor. A blocked air inlet or defective switch can also cause this issue.
its on the passenger side under the dash there is a little black couver with 4 screws in it just take them out and you will see it
!. With and ohmeter. 2.With a voltage light testor on the battery in series thru the resistor- if the light lites - the resistor is good.
I actually just did this today. I will asssume that it is a mid 90's olds or so. Anyhow, You first need to remove the clip that is connected to the blower motor itself and then remove the 6 blots from the blower motor that connect it to the firewall. Blower motors in general are not perfectly round so be aware of how it was installed in the first place. Once you remove the bolts you will just have to pull it out from the firewall and put in the new one. hopefully you have a blower motor with a clip and not a universal because splicing wires is a real pain. Put the clip back on and your good to go. If you have no idea where the blower motor is it is located up against the firewall and will stick out a little bit, It should be dead center or pretty close to center of the compartment. best of luck
Your A/C power module is bad. It's located underneath the hood underneath the firewall.
Conan - 2010 Why Are You All Laughing Asked the Glass Blower 3-88 was released on: USA: 16 May 2013
Do you have a hot start kit installed? Perhaps it is the relay switch?. Have had the same problem with both an 87 and 88 Cabriolet. Not sure if that will help but you never know! Larissa
on my 88.. (which ive had to change numerous times) its behind the removeable plastic cover against the firewall. under a red box that says +pos on it