No power to blower motor

Tiny
PICKER
  • MEMBER
  • 1997 PONTIAC BONNEVILLE
  • 3.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 200 MILES
Bower motor stopped working. Replaced motor, resistor, checked fuses and relay all good. I am not getting power to the blower motor. It is climate control. Please help.
Sunday, November 25th, 2018 AT 11:17 AM

6 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

This could be a wiring issue or possibly a blower motor or resistor. I will attach a diagram of the system for you.

You need to check the fuses for power on both sides as well as power to the blower motor.

There are four fuses to test. Three are under the hood and one inside the car. Use a test light to check for power on both sides.

Roy

https://www.2carpros.com/articles/low-or-no-air-flow-from-vents
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Sunday, November 25th, 2018 AT 11:52 AM
Tiny
PICKER
  • MEMBER
  • 4 POSTS
  • 1997 PONTIAC BONNEVILLE
  • 3.8L
  • 6 CYL
  • 131,000 MILES
Hello. You guys helped me figure out that the blower motor resistor as bad. Thank you so much. Now, auto part stores ( major chains) want $200.00 for it. Is there anyway to fix it? Bypass it or get it cheaper anywhere else? Thanks
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Sunday, December 30th, 2018 AT 5:14 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,709 POSTS
Hi and thanks. If you have automatic temperature control, it isn't a basic resister. However, a module. I looked parts up and see your concern. However, if you have manual temperature control, the part is fifteen dollars.

As far as repair, they are not repairable.

Let me know if you have other questions. Also, here are the directions for replacement. At least it's an easy one.

________________________

Remove or Disconnect

1. Negative battery cable.
2. Rear engine sight shield. Refer to Engine Cover Replacement See: Engine > Procedures.
3. Center bolt and positive booster cable from multi-use relay and fuse bracket.
4. Underhood fuse blocks and relays from bracket and position aside.
5. Nuts attaching multi-use relay and fuse bracket to front of dash, and bracket from vehicle.
6. CPA and connector from blower resistor assembly.
7. Screws attaching blower resistor assembly to heater and A/C module assembly.
8. Blower resistor assembly from vehicle.

Install or Connect

1. Screws attaching blower resistor assembly to heater and A/C module assembly after positioning in vehicle.

Tighten
Screws to 1.4 N.M (12 lb. In.).

2. Connector to blower resistor assembly and CAP.
3. Nuts attaching multi-use relay and fuse bracket to front of dash after positioning on vehicle.

Tighten
Nuts to 3.8 N.M (34 lb. In.).

4. Position fuse blocks and relays to bracket and snap m.
5. Center bolt attaching positive booster cable to multi-use relay and fuse bracket after positioning cable.

Tighten
Bolt to 10 N.M (89 lb. In.).

6. Rear engine sight shield. Refer to Engine Cover Replacement See: Engine > Procedures.
7. Negative battery cable.

Tighten
Negative battery cable to 15 N.M (11 lb. Ft.).

___________________________________

Let me know if this helps or if you have other questions.

Joe
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Sunday, December 30th, 2018 AT 5:14 PM (Merged)
Tiny
PICKER
  • MEMBER
  • 4 POSTS
Yes. Horrible price. Can I change my control panel to one that's not climate control? I have a parts car that has knob controls. If possible to swap out panel and resistor. Just wondering. Thanks again.
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Sunday, December 30th, 2018 AT 5:14 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,709 POSTS
Hi:
Your vehicle isn't designed for that system. Check online for the part. I feel you may find it from an online supplier for much less. Also, you may find one at a salvage yard, used.

I wish I had better news. Ugh. Nothing is ever easy.

Take care,
Joe
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Sunday, December 30th, 2018 AT 5:14 PM (Merged)
Tiny
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Thanks for the information.
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Sunday, December 30th, 2018 AT 5:14 PM (Merged)

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