tstoelb Posted January 22, 2010 Report Share Posted January 22, 2010 Hello to all, new to the forum. I am looking at a 1993 Sedan DeVille. Unsure of the engine. Current owner says car runs great. I heard it run and it is quiet as a mouse. But the owner says that every once in a while the tranny wants to stay in third gear. Owner is a mechanic and claims that there is probably a glitch in the computer. Says he has looked at the tranny and says it looks good. Any thoughts here. Car has over 100k on it. Link to comment Share on other sites More sharing options...
Bruce Nunnally Posted January 22, 2010 Report Share Posted January 22, 2010 LOL owner is a mechanic, car has a problem, but owner has not fixed it? Assume the transmission needs a rebuild and price it that way. I love it when the ad says, "car only needs a $50 repair to be good as new" or whatever. If it only needs a minor thing wouldn't you do that before you try to sell it then not have to mention the thing at all? Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
Ranger Posted January 22, 2010 Report Share Posted January 22, 2010 I am looking at a 1993 Sedan DeVille. Unsure of the engine. It's a 4.9. Very reliable, but like Bruce said, I'd be leary about that trans. Tell him to fix it first . Link to comment Share on other sites More sharing options...
adallak Posted January 22, 2010 Report Share Posted January 22, 2010 The computer is only $90 and is very easy to replace... He would do that right away if it was the problem. The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
Texas Jim Posted January 22, 2010 Report Share Posted January 22, 2010 He is lying to you. "IF" he is a mechanic, and "IF" it was easy to fix...he would already "HAVE" it fixed. Deduct at least $2,000 for having to rebuild the transmission. Link to comment Share on other sites More sharing options...
rockfangd Posted January 22, 2010 Report Share Posted January 22, 2010 I agree fully. When a mechanic is selling a car with a supposed simple problem, it is never a simple problem. Welcome to the forum GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
tstoelb Posted February 6, 2010 Author Report Share Posted February 6, 2010 <img src="http://caddyinfo.ipbhost.com/public/style_emoticons/<#EMO_DIR#>/welcomesmiley.gif" style="vertical-align:middle" emoid="" border="0" alt="welcomesmiley.gif" /> LOL owner is a mechanic, car has a problem, but owner has not fixed it? Assume the transmission needs a rebuild and price it that way. I love it when the ad says, "car only needs a $50 repair to be good as new" or whatever. If it only needs a minor thing wouldn't you do that before you try to sell it then not have to mention the thing at all? Link to comment Share on other sites More sharing options...
tstoelb Posted February 6, 2010 Author Report Share Posted February 6, 2010 How about this. My step son bought this thing. Owner says that he replaced a 15 amp fuse in the interior fuse box and that cures the problem of the car staying in high gear. I drove it and it drove fine. Gotta love them Caddy's ride. But it appears that the fuse has blown again and it stays in high. Any ideas. Fuse too small or is it another issue. You can manually shift the tranny and it works. so it must be something telling the tranny not to shift. Link to comment Share on other sites More sharing options...
CarlaValentine Posted February 6, 2010 Report Share Posted February 6, 2010 How about this. My step son bought this thing. Owner says that he replaced a 15 amp fuse in the interior fuse box and that cures the problem of the car staying in high gear. I drove it and it drove fine. Gotta love them Caddy's ride. But it appears that the fuse has blown again and it stays in high. Any ideas. Fuse too small or is it another issue. You can manually shift the tranny and it works. so it must be something telling the tranny not to shift. Pull the diagnostic trouble codes and post them here. There's a very good chance that they will tell you what is wrong, or at least point you in the right direction. Posting them here will help us to help you. This link will tell you how to pull them. http://www.caddyinfo...adingcodes.html Link to comment Share on other sites More sharing options...
adallak Posted February 6, 2010 Report Share Posted February 6, 2010 How about this. My step son bought this thing. Owner says that he replaced a 15 amp fuse in the interior fuse box and that cures the problem of the car staying in high gear. I drove it and it drove fine. Gotta love them Caddy's ride. But it appears that the fuse has blown again and it stays in high. Any ideas. Fuse too small or is it another issue. You can manually shift the tranny and it works. so it must be something telling the tranny not to shift. There is a table inside of the fuse box which tells you what circuit a particular fuse is responsible for. That could point you in right direction too. The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
tstoelb Posted February 7, 2010 Author Report Share Posted February 7, 2010 Here goes. The fuse is in slot #5 and is marked for ERLS. Link to comment Share on other sites More sharing options...
adallak Posted February 7, 2010 Report Share Posted February 7, 2010 Here goes. The fuse is in slot #5 and is marked for ERLS. There is an intermittent short somewhere. Read this up, it is a different car but the same powertrain:http://www.2carpros.com/forum/blown-erls-fuse-when-using-ac-or-defroster-vt14276.html The saddest thing in life is wasted talent Link to comment Share on other sites More sharing options...
KHE Posted February 7, 2010 Report Share Posted February 7, 2010 I would recommend buying a factory service manual for the car - they are available on ebay for reasonable prices. Once you have a shop manual, study the circuits that the ERLS fuse feeds. My guess is there is a intermittent short in the wiring somewhere caused by something that pinched a wire or rubbed through the wire insulation. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
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