Last post on Feb 13, 2013 at 7:44 PM
You are in the Pontiac Bonneville
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Pontiac Bonneville, Heating / Cooling, Sedan
#52 of 231 heater turns on and off
Jan 18, 2008 (10:51 pm)
I have a 1998 Pontiac Bonneville and I have to start my car and hit the heater motor to turn the heater on. But when im driving it will turn off when i hit a bump or turn on whenever. I never know. And if I leave my car running too long sitting still it over heats. I dont know anything about cars any help would be great. I have two kids one a one month old premature baby and i need to get my heater working asap its cold!!!
#53 of 231 Re: heater turns on and off [dziebutterfly2]
Jan 19, 2008 (7:08 am)
If hitting the blower motor under the hood area behind the motor is enough to turn it on, that's the prime symptom of a worn out blower motor. It's a tight fit, but the 5-6 screws hold the blower to the firewall part of the heater box and it can be worked out.
Replacement motors for the blower are available aftermarket. Connect the blower motor and test it for running before bolting it in.
#54 of 231 Re: Not heat but air works [dmx6]
Jan 19, 2008 (8:02 am)
Thank you so much for the response. The lower intake is just beginning to seep out coolant, it is not leaking bad yet. I think I was quoted about $300 to repair that. However, I am told that every sensor on my car except for one is reading that it is bad. So, I'm not sure if the whole dang computer is fried or what is going on, but I'm wondering if it is worth fixing at this point. There is also an ABS issue, with the sensors coming on and the car thinking I'm on ice when I'm not. Also, shocks and struts, ball joints, and tranny and brake flushes are needed. Everything is more expensive because I have a supercharge engine. I paid $80 for the thermostat to be changed, and that didn't solve the problem. I took the advice of a previous poster, and set my heat to 60 degrees for a minute, then up to 90, and sometimes that works. Sometimes I have to turn the car off and back on to get the heat to work, and sometimes no matter what I do it won't work. Those are usually the ridiculously cold days, of course. Single mom's shouldn't buy used cars. That's all I can come up with for a solution at this point. I'm a full time college student, and high dollar repairs are needed. Sigh. I do so appreciate your help, though. I will keep trying to figure out what this is and hopefully can come up with some car repair funds soon. I paid almost $5,000 for the car 6 months ago, so I would like to fix it if I can. It's a beautiful car and the engine is great... for what that is worth! There is just over 100,000 miles, which isn't too bad for a 1995. Thanks again, Angela
#55 of 231 Re: 1998 Bonneville A/C programmer replacement [dmx6]
Feb 12, 2008 (7:50 am)
Sorry I haven't replied sooner, but I just stopped using my bonneville for now, hoping someone would figure it out. So you say by replacing the actuator controller and that corrected your problem? How much did it cost you?
#56 of 231 Re: 1998 Bonneville A/C programmer replacement [mike235]
Feb 12, 2008 (10:50 am)
I put the part in myself but the part cost $60.00 to purchase. I imagine labor might be high because the only way in is to take the dash assy out. My car has the console which took longer but the one without the console is easier to deal with.
#57 of 231 Re: 1998 Bonneville A/C programmer replacement [dmx6]
Feb 13, 2008 (5:45 am)
Thank you very much for your help, I will be doing it myself once I get the part. You wouldn't happen to have a part number would you? And did you learn any tricks to getting the dash off/on? Or did you break any clips/posts, I would assume that is how it is held on there? Thanks again for your advice. Mike
#58 of 231 1998 Bonneville A/C programmer replacement
Feb 13, 2008 (11:48 am)
Thanks to some info on this site I changed the programmer myself. One thing that made the job easier was that I added about 18 inches of wire to the 6 wires that are in the connector on the top of the unit. That allowed me to have the unit on the floorboard and I could see the recepticle. It also got the unit out of the way of my hand.
#59 of 231 1998 Bonneville Accumulator change
Feb 13, 2008 (12:00 pm)
I change the programmer and now have heat, but no air. The dealer wants to change the accumulator for about $1,000. Auto Zone has an accumulator for $33, so now I just need to know if anyone has any tips to offer.What seems to be confusing in the manual is the part about draining the refrigerant oil. It seems you remove the Schrader valve and measure the amount that comes out, and then add that amount plus one ounce. Where and what is the Schrader valve? Can anyone help? Thanks!
#60 of 231 1998 Bonneville A/C programmer replacement
Feb 13, 2008 (12:46 pm)
Mike, you don't have to remove the dash panel to change the programmer. Go back to #43 in this section and call up the diagrams posted at the bottom. The progtammer is right under the glove box with about 6 or 7 hoses connected to it. It is held in with 2 screws. One is on the duct and the other is closer to the glove box. They are both 7 mm. Cut the hoses and get some 1/4 in hose to go over the existing hose when you replace the unit. I went to the dealer and found all bonnevilles from 1996 to 1998 have the same programmer. You will have a problem disconnecting the connector on the top. There is a little tab that is pushed in towards the rear of the car to release the connector which pulls up. Good luck if you haven't already done it.
#61 of 231 Re: 1998 Bonneville A/C programmer replacement [mike235]
Feb 23, 2008 (5:00 pm)
I have a 1996 Boneville and was told today I need a A/C programmer. I can't find what I am looking for. Did you ever find a part number and how much was it. Where did you buy yours?