Prop_Washer2 Posted June 12, 2004 Report Share Posted June 12, 2004 Sprayed Electrical Contact Cleaner around the buttons on my A/C switches, the first time they seemed to work a little better. Sprayed liberally again, now it seems the buttons have melted internally No push pull action...argh. Looks like the buttons are shot. Any good sources for a replacement panel, cheap?? I have been chasing a computer problem, wherein the system kicks into defroster mode, "service engine" light kicks on, and fuel data info, and a/c digital info, as well as "engine coolant temp" blanks out simultaneaously to read "----" on all readouts. Scrolling through the info button, System Voltage, and Oil Life Index read OK though. Once the computer puts it in this mode, hitting the "Off" button on the A/C or any other button is useless. It stays in this mode until it decides to go to a normal mode, no pattern. Could be all day, or it may kick out after 45 minutes. It defaults to 75 degrees, blows on high defrost, and stays there. IF I catch it first thing in the morning, I can engage the A/C system, i.e. "Auto" button, and if the A/C system kicks in, it will be fine all dayif I don't change it. For a moment I got a glimmer of an idea that it was the "control panel/button" issue. I have used this cleaner on many automotive switches with good luck in the past. I am aware of the various computers, and that they are tied together. I do not know the locations of these, I feel it is a dirty connection issue somewhere, but do not know where to start looking. My Clymer brand service manual sucks...any help from the best experts on the Internet would be appreciated. '92 Seville STS, 4.9L, 147k miles.I have taken care of many issues on this puppy, this is really the last "biggie" remaining to fix...Thanks so much guys... Link to comment Share on other sites More sharing options...
98Concours Posted June 12, 2004 Report Share Posted June 12, 2004 What codes do you get when your SEL comes on? I have a feeling it's your computer. Jeff Jeff 98 Concours 90 Seville 04 Corvette Link to comment Share on other sites More sharing options...
Scotty Posted June 12, 2004 Report Share Posted June 12, 2004 Try a hairdryer on the buttons (not really hot) maybe you oversoaked them. Mike Link to comment Share on other sites More sharing options...
Prop_Washer2 Posted June 12, 2004 Author Report Share Posted June 12, 2004 I'll try the hair dryer trick...can't get codes now as buttons are melted stuck...I'll work with it some in a few minutes...Thanks Link to comment Share on other sites More sharing options...
Scotty Posted June 12, 2004 Report Share Posted June 12, 2004 I'll try the hair dryer trick...can't get codes now as buttons are melted stuck...I'll work with it some in a few minutes...Thanks What the heck did you spray that melted the buttons? I dont think that electrical contact cleaner can do that, it could be that the interior is wet and the buttons are bogged down in wetness and inoperable, this happened to me last week, with my son's computer monitor the picture adjustment buttons were dirty and when I sprayed them they stuck in. I would not start the car until you free them up again, as they are ineffect stuck ON.... and you may do damage to the components they control. Try pulling the unit and getting a clearer view to use the dryer. When I used the dryer on my sons monitor they all freed up again. You can do damage if you over spray and short the electrical connections so be careful.. Mike Link to comment Share on other sites More sharing options...
98Concours Posted June 12, 2004 Report Share Posted June 12, 2004 I forgot what code I got on my 90Seville (4.5), but the CEL would come on and the AC would go to defrost and I think, the compressor would turn off. Anyway, after doing all the troubleshooting, it led me to a bad computer. I replaced it for about 100.00 and all has been well since. Jeff Jeff 98 Concours 90 Seville 04 Corvette Link to comment Share on other sites More sharing options...
Ranger Posted June 12, 2004 Report Share Posted June 12, 2004 I think that electrical contact cleaner will melt some types of plastic. Seems to me I have even seen a warning on the can that says to test it first. Link to comment Share on other sites More sharing options...
Marika Posted June 12, 2004 Report Share Posted June 12, 2004 I think that electrical contact cleaner will melt some types of plastic. Seems to me I have even seen a warning on the can that says to test it first. I'm glad I still have my old can of MEMOREX DuPont Freon TF. It's some kind of liquified Freon that's used for cleaning the read/write heads on computer tape drives and capstans but I've used it on a lot of electrical stuff too. It's perfect and doesn't damage anything. Unfortunately, I can't find it anymore and I've only got about 1/2 can left. If you really want to make people safe drivers again then simply remove all the safety features from cars. No more seat belts, ABS brakes, traction control, air bags or stability control. No more anything. You'll see how quickly people will slow down and once again learn to drive like "normal" humans. Link to comment Share on other sites More sharing options...
Scotty Posted June 12, 2004 Report Share Posted June 12, 2004 I think that electrical contact cleaner will melt some types of plastic. Seems to me I have even seen a warning on the can that says to test it first. I'm glad I still have my old can of MEMOREX DuPont Freon TF. It's some kind of liquified Freon that's used for cleaning the read/write heads on computer tape drives and capstans but I've used it on a lot of electrical stuff too. It's perfect and doesn't damage anything. Unfortunately, I can't find it anymore and I've only got about 1/2 can left. Sounds harmful to the environment to me! Link to comment Share on other sites More sharing options...
Prop_Washer2 Posted June 12, 2004 Author Report Share Posted June 12, 2004 Ok Checked the buttons this morning, fiddled with 'em a little they seem to be fine now...whew!! Now I still have the intermittent computer issue. I am going to start a new topic on it, to seperate from the button problem...thanks guys! Link to comment Share on other sites More sharing options...
Marika Posted June 12, 2004 Report Share Posted June 12, 2004 I think that electrical contact cleaner will melt some types of plastic. Seems to me I have even seen a warning on the can that says to test it first. I'm glad I still have my old can of MEMOREX DuPont Freon TF. It's some kind of liquified Freon that's used for cleaning the read/write heads on computer tape drives and capstans but I've used it on a lot of electrical stuff too. It's perfect and doesn't damage anything. Unfortunately, I can't find it anymore and I've only got about 1/2 can left. Sounds harmful to the environment to me! Yeah, it could be, in large amounts, I would imagine. But certainly not when soaked on a Q-Tip and used to clean tape heads and capstans. The bottle has a special seal on it which stops evaporation. I've had it since 1979. A substitute for cleaning electrical parts is research grade Methanol or Acetone but the Acetone WILL melt most plastics. If you really want to make people safe drivers again then simply remove all the safety features from cars. No more seat belts, ABS brakes, traction control, air bags or stability control. No more anything. You'll see how quickly people will slow down and once again learn to drive like "normal" humans. Link to comment Share on other sites More sharing options...
Scotty Posted June 12, 2004 Report Share Posted June 12, 2004 I think that electrical contact cleaner will melt some types of plastic. Seems to me I have even seen a warning on the can that says to test it first. I'm glad I still have my old can of MEMOREX DuPont Freon TF. It's some kind of liquified Freon that's used for cleaning the read/write heads on computer tape drives and capstans but I've used it on a lot of electrical stuff too. It's perfect and doesn't damage anything. Unfortunately, I can't find it anymore and I've only got about 1/2 can left. Sounds harmful to the environment to me! Yeah, it could be, in large amounts, I would imagine. But certainly not when soaked on a Q-Tip and used to clean tape heads and capstans. The bottle has a special seal on it which stops evaporation. I've had it since 1979. A substitute for cleaning electrical parts is research grade Methanol or Acetone but the Acetone WILL melt most plastics. Just kidding you! LOL... I am trying to figure out how I am going to discharge my AC when I replace my compressor without letting it out into the atmosphere.. Maybe I will have the place that will recharge is reclaim it before I take it apart.. Mike Link to comment Share on other sites More sharing options...
Ranger Posted June 12, 2004 Report Share Posted June 12, 2004 "I am trying to figure out how I am going to discharge my AC when I replace my compressor without letting it out into the atmosphere.. Maybe I will have the place that will recharge is reclaim it before I take it apart".. Mike Mike, I think that is the ONLYway you are going to do it without venting to atmosphere. Having said that, isn't that the reason they went to R134a? I thought that it was "environmentaly friendly". Link to comment Share on other sites More sharing options...
Prop_Washer2 Posted June 13, 2004 Author Report Share Posted June 13, 2004 If it is R-134a, just loosen a fitting and let it blow out...I just did mine yesterday as I over charged itm cools great now. Just an update on the electrical cleaner on the switches delima, they work great now, and feel "lubricated" with a nice soft touch... now if I can only find that peskey A/C computer location... Link to comment Share on other sites More sharing options...
Ranger Posted June 13, 2004 Report Share Posted June 13, 2004 now if I can only find that peskey A/C computer location... If your talking about the programmer, I think it is back behind the glovebox somewhere. Link to comment Share on other sites More sharing options...
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