ronalddts Posted January 21, 2011 Report Share Posted January 21, 2011 My 2000 DTS will just stop while sitting at a stop light. It starts up ok. Codes BO 429 and B 1860 show up.Any ideas ? Link to comment Share on other sites More sharing options...
Cadillac Jim Posted January 21, 2011 Report Share Posted January 21, 2011 B0429 Temperature Control #3 Rear Circuit Range/Performance B1860 Driver Lumbar Vert Sensor Circuit Malfunction I would suspect the crankshaft sensors. I'm surprised that you don't have any PCM codes, such as P1599 Engine Stall or Near Stall Detected, or P0339 Crankshaft Position (CKP) Sensor Circuit Intermittent. Without Pnnnn codes everything is just a guess. Other possibilities are bad plugs, ignition wires, FPR, etc. Tell us more, like how many miles you have on the spark plugs and wires, whether you've changed the air cleaner element in recent memory, symptoms of vacuum leaks, etc. Have you had the car serviced or worked on lately? Etc. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
BodybyFisher Posted January 21, 2011 Report Share Posted January 21, 2011 I agree with the crank sensors also, but I would clean the IAC and throttle body first 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...
CoupeDTS Posted January 21, 2011 Report Share Posted January 21, 2011 When my 00 DTS crankshaft sensor went bad it stalled for a couple weeks without any codes. Eventually it threw a code. But once cleared it would die again and not throw a code. Although mine would die while driving, not just sitting at lights so thats probably why these guys are telling you to check other items as well. Start researching how to change the crankshaft sensors. Which ones to buy and which not to buy. And how to test which one is bad. * 1966 Deville Convertible * 2007 Escalade ESV Black on Black * 1996 Fleetwood Brougham Black on Black V4P -Gone* 1983 Coupe Deville Street/Show Lowrider -Gone* 1970 Calais 4dr Hardtop GONE* 2000 Deville DTS - Silver with Black Leather and SE grille GONE* 1999 Seville STS - Pearl Red GONE Link to comment Share on other sites More sharing options...
winterset Posted January 21, 2011 Report Share Posted January 21, 2011 I too am not one to throw parts at a problem, but I recall this is a definate known issue on this year car, and you have the typical symptoms, & another user confirmed it doesn't throw a code. I would just have the sensors replaced. - especially if you can do it yourself, and moreso if you don't know the history of the sensors (are they the original inferior ones) Link to comment Share on other sites More sharing options...
ronalddts Posted January 21, 2011 Author Report Share Posted January 21, 2011 How do you clean the IAC throttle body on a 2000 DTS ? Link to comment Share on other sites More sharing options...
BodybyFisher Posted January 21, 2011 Report Share Posted January 21, 2011 I too am not one to throw parts at a problem, but I recall this is a definate known issue on this year car, and you have the typical symptoms, & another user confirmed it doesn't throw a code. I would just have the sensors replaced. - especially if you can do it yourself, and moreso if you don't know the history of the sensors (are they the original inferior ones) Ditto. Crank sensors were an issue in this year. They don't always set a code but sometimes they do. When the crank sensors are suspected BOTH must be replace, NOT one, so it does NOT matter which one is bad Once all other possible causes are eliminated like: bad or loose electrical connections to the crank sensors, coils, etc low fuel pressure from all sources, check with a fuel pressure gage bad plugs clogged or dirty IAC or IAC port, where the IAC circuit is not able to compensate properly dirty air filter fuel problems (water) weak or shorting battery or bad grounds elimination of any codes if any then it is logical on THIS year to replace the crank sensors, but after careful diagnosis of other possible causes 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...
BodybyFisher Posted January 21, 2011 Report Share Posted January 21, 2011 How do you clean the IAC throttle body on a 2000 DTS ? Facing the throttle body from over the drivers side fender, the IAC is about 10 o'clock it looks like a silver barrel with an electrical connection on it. It is held in place by two torx screws, use the correct torx driver and remove the screws The IAC has an O-Ring on it, so once the screws are out gently rock it out after removing the electrical connector, be careful NOT to break the plastic tab off of the connector Once the IAC is out, you will see a mushroom shaped pindle, clean that well, and clean the port well where it sits and look for carbon build up. do not submerge the IAC in cleaner. Use an O2 safe carb cleaner, like GM's Upper Intake Cleaner Attached is a photo of the IAC 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...
BodybyFisher Posted January 21, 2011 Report Share Posted January 21, 2011 See this thread for some interesting background http://caddyinfo.ipbhost.com/index.php?showtopic=25008&st=0&p=156696&hl=B0429&fromsearch=1entry156696 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...
Ranger Posted January 22, 2011 Report Share Posted January 22, 2011 CKP sensors are HIGHLY suspect on any 2000-2003 exhibiting a stall with or without codes. GM had a bad supplier in those years. Link to comment Share on other sites More sharing options...
ronalddts Posted January 25, 2011 Author Report Share Posted January 25, 2011 What is an estimated cost to replace both crankshaft sensors on my 2000 DTS. Thanks Link to comment Share on other sites More sharing options...
BodybyFisher Posted January 25, 2011 Report Share Posted January 25, 2011 I merged your post about the cost of crank sensors with your post were you diagnosed that the problem appeared to be the crank sensors. Its best to keep this info together for future use 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...
Cadillac Jim Posted January 25, 2011 Report Share Posted January 25, 2011 I would do this job myself. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
CoupeDTS Posted January 25, 2011 Report Share Posted January 25, 2011 What is an estimated cost to replace both crankshaft sensors on my 2000 DTS. Thanks $50-$75 a piece per sensor. If you can change the oil you can probably do this repair. * 1966 Deville Convertible * 2007 Escalade ESV Black on Black * 1996 Fleetwood Brougham Black on Black V4P -Gone* 1983 Coupe Deville Street/Show Lowrider -Gone* 1970 Calais 4dr Hardtop GONE* 2000 Deville DTS - Silver with Black Leather and SE grille GONE* 1999 Seville STS - Pearl Red GONE Link to comment Share on other sites More sharing options...
airmike Posted January 25, 2011 Report Share Posted January 25, 2011 I too am not one to throw parts at a problem, but I recall this is a definate known issue on this year car, and you have the typical symptoms, & another user confirmed it doesn't throw a code. I would just have the sensors replaced. - especially if you can do it yourself, and moreso if you don't know the history of the sensors (are they the original inferior ones) Ditto. Crank sensors were an issue in this year. They don't always set a code but sometimes they do. When the crank sensors are suspected BOTH must be replace, NOT one, so it does NOT matter which one is bad Once all other possible causes are eliminated like: bad or loose electrical connections to the crank sensors, coils, etc low fuel pressure from all sources, check with a fuel pressure gage bad plugs clogged or dirty IAC or IAC port, where the IAC circuit is not able to compensate properly dirty air filter fuel problems (water) weak or shorting battery or bad grounds elimination of any codes if any then it is logical on THIS year to replace the crank sensors, but after careful diagnosis of other possible causes BBF can you tell me why both sensors must be changed? Absolutely not a criticism, just a desire to understand, I have no experience with them.Being capitalized it must be more than a suggestion. Link to comment Share on other sites More sharing options...
BodybyFisher Posted January 26, 2011 Report Share Posted January 26, 2011 All I know is that the GURU who was a Northstar Powertrain Engineer used to say to replace both, if one is going, the other is soon to go bad. We have always been told to replace them as a pair See this link, for the same reasons http://www.statracing.com/replacement/crankpositionsensor.asp Nissan service info recommends replacing both cam and crank sensors at the same time to reduce comebacks and warranties 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...
Cadillac Jim Posted January 26, 2011 Report Share Posted January 26, 2011 BBF will answer his own question, but since he's offline for a couple of hours, I'll speak up with my POV and say that in the model years that the crankshaft sensor vendor sold GM the bad ones, they made both of them, and that whatever pushed one over the edge isn't likley leaving the other far behind. Since most of the job is getting the car set up and accessing the front of the block where both sensors are a few inches apart, and since new parts aren't expensive, it just makes good sense to replace both. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
BodybyFisher Posted January 26, 2011 Report Share Posted January 26, 2011 Exactly Jim, 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...
Ranger Posted January 31, 2011 Report Share Posted January 31, 2011 What is an estimated cost to replace both crankshaft sensors on my 2000 DTS. Thanks A dealer will charge $300 - $400. Link to comment Share on other sites More sharing options...
Cadillac Jim Posted January 31, 2011 Report Share Posted January 31, 2011 New AC/Delco crankshaft sensors are about $50 each at Rock Auto. It's a DIY job to me, but it's your call. You might ask what the Goodwrench warranty is for this job and decide whether that is worth the $200-$300 for a GM Goodwrench tech to replace the crankshaft sensors. -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
Ranger Posted February 2, 2011 Report Share Posted February 2, 2011 I think it is closer to $300 - $400 at a dealer. Link to comment Share on other sites More sharing options...
Cadillac Jim Posted February 2, 2011 Report Share Posted February 2, 2011 Ranger - at a dealer you are paying for the part plus the GM flat-rate manual labor time, at the Goodwrench labor rates of about $100 an hour. Or, are you talking about an over-the-counter parts cost at a dealer? -- Click Here for CaddyInfo page on "How To" Read Your OBD Codes-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data -- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC Yes, I was Jims_97_ETC before I changed cars. Link to comment Share on other sites More sharing options...
Ranger Posted February 3, 2011 Report Share Posted February 3, 2011 The price I mentioned was from a friend who had it done at a dealer (dealer price for parts and labor). Link to comment Share on other sites More sharing options...
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