Jsblkram Posted May 25, 2019 Report Share Posted May 25, 2019 99 Cadillac Deville, replaced battery, alternator, alternator plug. All connections cleaned. Had charging system checked, all good but battery not charging still showing up on dash along with battery indicator light. Any help would be appreciated Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 26, 2019 Report Share Posted May 26, 2019 Where did you buy the battery? Check the trouble codes and report them here. Report all P codes here Some aftermarket alternators will not work correctly Quote Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Jsblkram Posted May 26, 2019 Author Report Share Posted May 26, 2019 Interstate battery. Had it checked after replacing battery and alternator and everything was normal. Cleared codes already so can’t remember what they was but not showing any codes now just showing battery not charging and battery light is on ??? Found this sight after cleared codes Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 26, 2019 Report Share Posted May 26, 2019 40 minutes ago, Jsblkram said: Interstate battery. Had it checked after replacing battery and alternator and everything was normal. Cleared codes already so can’t remember what they was but not showing any codes now just showing battery not charging and battery light is on ??? Found this sight after cleared codes OPPs, I goofed,.I meant where did you buy the alternator. We only recommend ac delco, many of the 'lifetime' alternators have a glitch in the regulator that throws a code creating a no charge condition. If the message is up and light is on, you should have a code, check again Quote Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Jsblkram Posted May 26, 2019 Author Report Share Posted May 26, 2019 Bought at O’Rieleys auto parts and yes it’s a lifetime alt. Did not know this info about glitch. I will check for codes again tomorrow and post what it says. THANK U for the info !!!! Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 26, 2019 Report Share Posted May 26, 2019 I am not saying the alternator is bad till you check the codes. But it is a possibility. We are looking for a code related to the alternators L terminal, As additional support see this thread Quote Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
sprucegoose Posted May 26, 2019 Report Share Posted May 26, 2019 I suspect defective or incompatible alternator also. I once had a bad experience with a lifetime alternator I put on from AutoZone on one of my Eldorados. They just don’t do a good job building those anymore...That one seized up actually tearing up the belts! AC Delco is probably the way to go here and would be more reasonable through rockauto.com with the 5% discount if you can wait for shipping. BodybyFisher 1 Quote '09 Cadillac CTS-4 3.6 direct injection, 128 K mi. '15 Chevy Tahoe LTZ, 5.3i V8, 125 K mi '70 Firebird Formula 400, Bored+.04, RAIII heads, M21 4spd., in-process restoration! Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 26, 2019 Report Share Posted May 26, 2019 Here is a rockauto 5% discount good till 6/2/19 Quote Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Jsblkram Posted May 26, 2019 Author Report Share Posted May 26, 2019 Took ur advice and ordered an AC Delco from rock auto. Thank u for the discount code and all the advice !!! I have had several Cadillac’s thru the years but this is the first I have really worked on myself. It’s challenging but rewarding at same time. Will post results in couple days after receive alternator. Once again THANK U !!!! BodybyFisher 1 Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 26, 2019 Report Share Posted May 26, 2019 6 minutes ago, Jsblkram said: Took ur advice and ordered an AC Delco from rock auto. Thank u for the discount code and all the advice !!! I have had several Cadillac’s thru the years but this is the first I have really worked on myself. It’s challenging but rewarding at same time. Will post results in couple days after receive alternator. Once again THANK U !!!! It will be challenging the first time but it will get easier. You do know there is an inspection removable door behind the right front wheel right? It allows easier access. I always put a 1/4" piece of plywood in front of the radiator to protect it from getting damaged by accident Quote Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Jsblkram Posted May 26, 2019 Author Report Share Posted May 26, 2019 Yes and I use small price of lexan on radiator. BodybyFisher 1 Quote Link to comment Share on other sites More sharing options...
rockfangd Posted May 27, 2019 Report Share Posted May 27, 2019 Did you replace the pigtail to the alternator? I know you said you replaced a plug. ACDELCO PT2297 I have run into this enough times. Not the big cable but the wide plug. There should still be a repair harness for that. They are common to failing near the plug to the alternator itself. Also ohm the main cable from the battery to the alternator. I have had one fail inside the cable. Nothing is worse than replacing a alternator only to find it was that pigtail. Has happened to me Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 27, 2019 Report Share Posted May 27, 2019 1 minute ago, rockfangd said: Did you replace the pigtail to the alternator? I have run into this enough times. Not the big cable but the wide plug. There should still be a repair harness for that. They are common to failing near the plug to the alternator itself. Nothing is worse than replacing a alternator only to find it was that pigtail. Has happened to me I may be mistaken but in his first post he stated that he replaced the plug. Quote Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
rockfangd Posted May 27, 2019 Report Share Posted May 27, 2019 1 minute ago, BodybyFisher said: I may be mistaken but in his first post he stated that he replaced the plug. Updated Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
Jsblkram Posted May 27, 2019 Author Report Share Posted May 27, 2019 3 hours ago, Jsblkram said: Yes. Replaced pigtail and about 3” of the wire. BodybyFisher 1 Quote Link to comment Share on other sites More sharing options...
Jsblkram Posted May 27, 2019 Author Report Share Posted May 27, 2019 Yes replaced pigtail and about 3” of wire Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 27, 2019 Report Share Posted May 27, 2019 9 minutes ago, Jsblkram said: Yes replaced pigtail and about 3” of wire You never mentioned if you had codes, what did you find? I dont like parts replacing. Please check codes Quote Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Jsblkram Posted May 27, 2019 Author Report Share Posted May 27, 2019 Only code I’m getting is P0603 Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 27, 2019 Report Share Posted May 27, 2019 1 hour ago, Jsblkram said: Only code I’m getting is P0603 It seems like you should be getting a code with battery not charging and the batt light on the dash Quote Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Jsblkram Posted May 27, 2019 Author Report Share Posted May 27, 2019 1 hour ago, BodybyFisher said: It seems like you should be getting a code with battery not charging and the batt light on the dash Yes battery light is on and battery not charging showing on display. When checking codes with these on all I get is P0603 Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 27, 2019 Report Share Posted May 27, 2019 2 minutes ago, Jsblkram said: Yes battery light is on and battery not charging showing on display. When checking codes with these on all I get is P0603 I trust the diagnostic system. Usually when you get a message there is an associated code. How are you checking codes?, through the dash?, or with a reader? Quote Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Jsblkram Posted May 27, 2019 Author Report Share Posted May 27, 2019 55 minutes ago, BodybyFisher said: I trust the diagnostic system. Usually when you get a message there is an associated code. How are you checking codes?, through the dash?, or with a reader? Thru the dash. I do not have a reader yet Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 27, 2019 Report Share Posted May 27, 2019 4 hours ago, Jsblkram said: Thru the dash. I do not have a reader yet Ok, I would have liked to see a code. It could be that the alternator is ok in terms of the glitch we speak of above but it has a problem like a blown diode or stuck brushes. Either way, it must be eliminated as a cause. Quote Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Jsblkram Posted May 31, 2019 Author Report Share Posted May 31, 2019 Fantastic !!!!!!! Replaced alternator with the AC Delco from RockAuto. Battery is charging just fine. Took some time but with the help from u guys it is now back on the road. Many, many thanks for the info to help me figure this out. Thank u !!!!!!!! BodybyFisher, rockfangd and cdgrinci 3 Quote Link to comment Share on other sites More sharing options...
Jsblkram Posted May 31, 2019 Author Report Share Posted May 31, 2019 I will definitely be checking on this website to keep up with anything going on and help out if I can ???? Said before that I have owned many caddy’s but this is first one I’ve actually worked on. It’s an experience!!!!! Thanks again !!!!! rockfangd and Bruce Nunnally 2 Quote Link to comment Share on other sites More sharing options...
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