Question about 1998 Pontiac Bonneville

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Wife's 98 sse ac is not working - ideas on fixing it - how to and what might be wrong? it is all digitally controlled

This was fixed at a garage just last year and has quit working again, the AC - the garage is 240 miles south - they should fix it again kuz she only used it for a few months after they made it work, but we are here, they are there, and now she has to go back down there 240 miles in this heat monday - i cant tear into it because of hand/wrist surgery, but would like suggestions as far as which direction to go - ideas/solutions? thnx

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Low of fluid

Posted on Jul 06, 2017

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Posted on Jan 02, 2017

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SOURCE: AC/Heat fan Problems with 1999 Pontiac Bonneville

replace the blower motor

Posted on Oct 18, 2008

doin12volt
  • 233 Answers

SOURCE: 2002 pont. grand prix-Heater/AC Only works on High

you need a new speed control resistor... this is something you will have to get from the dealer, but you should be able to replace it yourself - it is under the dash on the passenger side mounted near the bottom of the fan motor.. you will remove a couple of screws, and it will come out of the black casing it is mounted inside.

Posted on Jan 12, 2009

  • 1118 Answers

SOURCE: AC/Heater on 2002 Grand AM SE1 will only work on one speed

chk. to see if you got a heater resister, it should be somewhere in the visinty of the blower motor 2 screws hold it in the heater box and it will have 4 or 5 wires in a plug going to it. samething happend with my truck and thats what it was. i also found out sometimes that plug with the wires to the resister burn, if thats the case you will have to chg. that too.

Posted on Jan 12, 2009

  • 137 Answers

SOURCE: the blower fan speed control stopped working

usually a bad blower resistor is at fault...

Posted on Feb 05, 2009

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SOURCE: 98 grandam grinding / ac compressor??

You are correct about replacement it will fix it and be cheaper in the long run. The bearing thats bad is pressed on, witch will be a bear to get off, if you can get it off. Every one i have ever known that had this problem just put another compressor on and recharged the system, its the best and cheapest fix. As far as compressor its up to you, but i would go with remanufactured at least you get a warrenty, if you buy used thats what you get is used or maybe someone elses problem. You will have to recharge the system, but you can do that yourself with a recharge kit from Wal-Mart around $20.00. Besides if it still has the old R12 refrigerant you can upgrade it to the new 134. One thing you should do is have the old refrigerant sucked out someplace that can capture it because of environmental issues.

Posted on Feb 06, 2009

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1 Answer

I have a 1999 pontiac bonnevill sse with a drivers information center on the dash, i fixed what it indicated but it is not registering that is fixed. How do i reset it?


Because you only think it indicated something was bad . You need to have body control system checked for diagnostic trouble code's . Your best bet , take it to a qualified repair shop .

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How much would it cost to get fixed


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I have a 98 DeVille and the blower motor for the heater/AC doesn't work.


Hey Jeff,you did check fuse in fuse box on driver side,if good and secure,then it may be your blower motor resister,it's located by blower motor,controls the blower motor,if bad it won't run or just on some speeds,if part doesn't fix,Autozone will refund.You can't tell by looking at resister to see if bad.Here's a link to the blower motor resistor,

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1 Answer

1992 bonneville sse w/ac replaced blower motor +


You replaced the blower control module or the blower control panel on the dash? This has automatic temp control right?

Mar 31, 2010 | 1992 Pontiac Bonneville

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Dash Control Unit Replacement


You can save a LOT of money by fixing it yourself.

All that is wrong with the knob are broken wires from the knob's PC board to the main PC board on the AC control.

All you have to do is remove the AC main control, take it apart, and resolder the broken wires from the PC board with the knob on it, to the main AC pc board. There are 3 wires, any number could be broken.

If you take it apart and solder the broken wires, this WILL fix your issue. Just make sure you put the wires back exactly where they go.

A FIXYA rating (4 blue diamonds) would be most appreciated for my assistance.

Mar 21, 2009 | 2002 Toyota Highlander

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2002 nissan maxima AC and heat will not work at the same time


There is a module called a power module located engine side of firewall almost at the upper center. It drops down into the evaporator case to keep it cool. Sometimes covered over with a black plastic cover. 2 electrical plugs connect to it. It varies the fan speeds depending on in car temperature. Should see 2 blue wire tie things retaining the electrical plugs to it.

Oct 28, 2008 | 2002 Nissan Maxima

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