1996 Oldsmobile Ciera A/C blower not working

Tiny
CSJ1984
  • MEMBER
  • 1996 OLDSMOBILE CIERA
Heater problem
1996 Oldsmobile Ciera 6 cyl Front Wheel Drive Automatic 137k miles

the car has been sitting up for about two years, when the car was parked the air would only blow on two of the four speed settings. I am now getting back to where I can drive it and I have discovered that it doesnt blow at all now. When you cut the air on you can hear the compressor kick in but nothing is blowing out of the vents, it doesnt even sound like the blower is on. I removed the blower motor and the blower wheel was hard to turn so I bought a new one and installed it but it still doesnt work. I then bought a new relay and tried that but it still doesnt work (there were two 5 pronged relays, I didnt know which one was it so I tried each of them with no success) there is a red wire with a connector coming from one of the relays in the car with nothing attached to it, I have looked and looked but cant find where it would connect to and I dont recall undoing it. Could you please help me try and figure this out?
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Sunday, October 10th, 2010 AT 6:42 PM

8 Replies

Tiny
RASMATAZ
  • MEMBER
Hi csj1984, Welcome to 2carpros and TY for the donation

The red wire is it live? If so could be the wire that powers the fuel pump relay from the fusible link 16ga Orange located at lower font of engine-let me know
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Sunday, October 10th, 2010 AT 6:56 PM
Tiny
CSJ1984
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The car starts and runs great, if it was the power supply for the fuel pump would it still crank?
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Sunday, October 10th, 2010 AT 11:40 PM
Tiny
RASMATAZ
  • MEMBER
Blower motor problem:

My bad-I'm referring it to the blower motor relay instead of the fuel pump relay-must be a busy day-Sorry! Check that wire and report back your findings

Note: Even if the blower motor resistor is defective the Hi speed should come on it bypasses the resistor
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Monday, October 11th, 2010 AT 3:43 AM
Tiny
CSJ1984
  • MEMBER
Before writing on here I got a piece of wire and stuck one end to the red wire coming from the relay and the other end to te positive on the battery. When I did that I heard something makin a humming noise, I was by myself and couldn't let go of the wires to see where it was coming from. I don't know if that was the appropriate way to test it, I assumed it was a power wire because it was red.
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Tuesday, October 12th, 2010 AT 2:39 PM
Tiny
RASMATAZ
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Where is this humming noise coming from?
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Tuesday, October 12th, 2010 AT 5:36 PM
Tiny
CSJ1984
  • MEMBER
It sounds like it's coming from the front passenger side near the firewall. Almost like it was the fan motor but I had the car off and the windows down but I didn't hear any air blowing out of the vents
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Tuesday, October 12th, 2010 AT 6:18 PM
Tiny
RASMATAZ
  • MEMBER
Investigate the blower motor could be binding bang on it and see if it makes a different sound
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Tuesday, October 12th, 2010 AT 6:22 PM
Tiny
RASMATAZ
  • MEMBER
Find the blower motor lead and power the purple wire direct from the battery positive post
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Tuesday, October 12th, 2010 AT 6:25 PM

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