I have checked the fuse, wired motor direct and it works when I did that. I have changed the fan blower switch, It worked for a few seconds and then stoped again just like befor. Is there a relay and can you tell me were it is.
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Re: 1998 olds 88 heater blower motor
To answer your question , yes there is a relay ,, it is located on the center rear of the engine compartment , just below the maxi fuse block , you should see a few relays all screwed on a block together . according to picture its the one closest to the passenger side of the car , but i wouldn't count on that . this may help indentify it , it has 4 wires , 1 is yellow ,1 is tan , 1 is light blue and 1 is dark blue . just answering your question . hope ya FIX it . please vote fix ya if you find my info to your liking , thanks .
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The brown wire at the speed switch is the power wire. Powers is then directed to the blower motor resistor throught the orange, lt blue and yellows wires. The blower motor receives power through the orange wire.
Check for power at the fuse with the key on. If there is no power the problem could be the ignition switch or the wiring in between the switch and the fuse block
I think under the hood in a fuse box.I would check the blower motor resistors connection afterwards.Turn ignition and fan switches on then wiggle the pigtail going to the resistor.Its located in the heat duct on the passenger side near the floor.These resistors are known for getting hot and melting the pigtail causing it to loose connection.
it most likely is the blower motor resistor
the control head controls the high fan setting while the resistor controls all other speeds-first check the wiring harness-it is located under the passenger dash and it easily damaged by passengers kicking it with their feet
ya its probly the blower motor.but can be the switch. you can check if ther is power at the motor with wire tester. test at the blower motor with switch in diff positions 2 see if it gets brighter as you turn the fan up.and if the lighter doesnt work its probly the liter. or maybe the wire came off the back of the element,
It sounds like the blower motor is not working. If you don't hear it running when you switch it on, check the fuse first. If the fuse is OK, you will probably need a new blower motor. It could also be a faulty fan switch or blower motor resistor. Once you remove the blower motor assembly, you can test it by putting battery voltage across the contacts with jumper wires, making sure to get correct polarity. If it does not spin, it should be replaced. If the blower does work when removed, the fan switch is probably at fault. The resistor is usually indicated when the fan works only at certain switch positions, but not all.
The resistors are in circuit only on the lower fan speed settings.
On the highest speed setting, power is switched directly to the fan motor.
Check fan power supply fuses,
Check power is available to the fan when high speed selected.
If all above OK, apply power directly to the motor to verify fan motor runs- if it doesn't the motor may need replacement/repair.
Fan will be under dash on passengers side , Removing glove box might be needed, Gm also uses a blower resister ro control fan speeds. First check your fuse and then check and make sure your getting 12 volts to the terminal at the blower, You could have a blown fuse, a bad switch, or a bad resister , if your getting voltage to blower motor then most likely it will be the motor. These are not to difficult to change. I hope this helps, please be aware I can only guess at what the problem is from my past experience.