Question about 1979 Pontiac Firebird

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Trying to wire a 68 firebird ac car to non ac... Do i need the high blower relay?

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I believe that you would still need it for the heater function.

Posted on May 07, 2010

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1 Answer

1993 Ford Escort Blower Motor & AC Switch


I'm going to start from the beginning.
The blower motor gets power from the high blower relay and it is grounded thru the fan switch and the resistor. So you should have power on the pink white blower wire coming from the high relay to the blower motor. The orange black wire from the motor is ground going to the resistor and fan switch. The blue wires on the control panel are for the ac compressor.
The high blower relay gets power from fuse number 5 in the box. The blower motor is grounded thru the resistor and then thru the fan switch.
Photo courtesy of AutoZone.com
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Jun 10, 2013 | 1993 Ford Explorer Limited

1 Answer

No power to my ac blower motor.


Could be a fuse, blower relay, resistor, control switch, or a wiring problem.
The resistor should be behind the glove box or on the firewall.

Jul 15, 2012 | 2002 Buick Rendezvous

1 Answer

Blower motor need a page from the book to fix it and it location


Component

Blower Motor Below right side oft?

Blower Motor Relay . In engine compartment fuse relay box

Blower Motor Resistors Below right side oft?

Blower Switch Below center oft?

Engine Compartment Fuse Relay Box Left side of engine compartment

ignition Switch Below left side oft?

Cl90 (68-LT gry) Left side of engine compartment (fuse relay box)

C20l (20-W HT) Below left side oft'?

C225 (13-Will) Below right side oft'?

Q216(8-WHT) Below right side ofi?

0203 Below left side oft'?

Blower Removal

1. Discharge the refrigerant from AC system. (Refer to the operating instructions of

your refrigerant recovery recycling charging station for proper procedures.)

2. Disconnect the inlet and outlet pipe from the evaporator.

NOTICE

- When connecting and disconnecting, refer to Quick Coupling below

- Immediately plug all open fittings to keep moisture out of system.

3. Remove the cover and drain hose.

4. Remove the glove box and disconnect the wiring harness connector.

5. Remove the blower unit.

6. Install in the reverse order of removal.

7. Evacuate the refrigerant system. (Refer to the operating instructions of your

refrigerant recovered cycling charging station for proper procedures.)

S. Charge the AC system. (Refer to the operating instructions of your refrigerant

Recovery recycling charging station for proper procedures.)

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Dec 16, 2010 | 1998 Kia Sephia

1 Answer

Have lost fan to heatr and ac...where is the fuse box or diagram?


1. Does the Blower work on High (or #4) only? If so then it is not the Front Blower Motor or the Relay that is bad, but it is the Resistor which is located behind the Glove box. Follow step #a. below and take out the Glove Box to access. It has 3 to 4 wires going into it. The wiring path is: Switches to the Resistor and then to the Motor.
2. The Front Blower Motor Relay is located in the IPM - Fuse and Relay Center. It is located in a box within the engine compartment. However: (restated) IF the Blower does only work on High then this Relay is good and you should only replace the Resistor Only. The Identification and Location of the Relays and Fuses is located on the back side (inside) of the IPM cover. Remove the cover. The Front Blower Motor Relay is the same Type (size and shape) as several other Relays in the panel. Switch out the Front Blower Motor Relay with a non-engine operation Relay for a function that you know works. Recheck the operations of both functions. If the Front Blower Relay now works and the other function now does not work, it was the Relay was bad and needs to be replaced.
a. Disconnect the Negative Cable from the Battery and wait at least two (2) minutes to deactivate the Airbag Sensors.
b. Remove the Glove Box.
c. Disconnect the Electrical Connection.
d. Unbolt/Unscrew the bolts/metal screws and remove the Resistor.
Installation is reverse of above.
Let me know if this helped, or if you have additional information or questions. Feel free to contact me at FixYa.com!

Jan 19, 2010 | 2004 Dodge Caravan

4 Answers

AC Blower wouldn't turn off, and now does not blow.


INTERIOR FUSE AND RELAY IS LOCATED AT THE LEFT END OF INSTRUMENT PANEL UNDER A COVER

Sep 16, 2009 | 2003 GMC Sierra

1 Answer

Hello I have a 1997 Bonneville SE 3.8 with climate control display shows AC is on and Blower is high. BUT no AC and no Blower. I checked power connector at the blower motor and is reading 1.5 Volts.


you need new blower module located at blower under hood, against the firewall under the relays it has four or five wires in it, and two bolts holding it in.

Sep 02, 2009 | 1997 Pontiac Bonneville

1 Answer

AC comes on in low to medium but shuts off on high.


It could possibly be the switch. Many automotive a/c blowers have a relay to engage the highest fan speed because the high current required will necessitate the use of heavy wiring to and from the blower motor and a heavy duty switch. Check for a high-speed relay and also there might be a circuit breaker in the blower system.

Hope this helps, rhais

Jun 28, 2009 | 2002 Dodge Durango

2 Answers

Blower blows high flow only


What about the control switch, did you change it????? usually the switch will only run on one speed. mesna the switch is bad. You could pull the switch off, and get a jumper wire and cross the other speeds out to see if they will work.

Feb 08, 2009 | 1979 Pontiac Firebird

2 Answers

Does ac blower have a fan relay ? It doent blow ******* max


if it doesnt work on all speed its the blower motor resistor that broken thanks pierre

Jul 30, 2008 | 1979 Pontiac Firebird

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