Robert Hofer Posted June 20, 2013 Report Share Posted June 20, 2013 Have a 97 Deville, had been leaking coolant slowly, after engine had warmed up it was dripping by passenger front tire ( down the boot area), also associated with? AC would only blow hot air. Took it in, was told that I needed a new thermostat and a backflush told them to do it if it would fix problem. Now over a 20 mile trip had to pull over 3 times as engine was too hot to drive, had to add coolant as was low. Is it possible that they put a bad thermostat in or should I be worrying more that either they screwed something up when they worked on it or a new problem has arisen? I took it back, they said the fan was not coming on, and they replaced 3 relays. Also stated they ran power to the fan and it works. Claims it may have to do with the ECU and they aren't qualified to check any further than they have. Any suggestions? Thanks Quote Link to comment Share on other sites More sharing options...
rockfangd Posted June 20, 2013 Report Share Posted June 20, 2013 Welcome to caddyinfo forum. First off pull the codes. It is cake. Turn key on. Look at your climate controls. Hold down the off and red warmer buttons for 3 seconds. Watch the instrument cluster and write down the codes and post them here. I would try to do a by products combustion test if possible. And check the coolant hose that runs from the reservoir to the driver side at the left dogbone mount, You will find a bolt with the hose going to it. Also known as the bolt with the hole in it. remove the bolt and check for blockage. Very common and causes similair problems. goood luck Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
KHE Posted June 20, 2013 Report Share Posted June 20, 2013 Do not replace any more parts until properly diagnosing the system. Check the purge line to make sure it is flowing - there is a TON of information in the archives on that. If you are leaking coolant, see what part of the system is the source of the leak - it may be coming from the surge tank overflow tube. Rent or borrow a cooling system pressure tester and test the system cold to see if it holds pressure. If the purge line is flowing coolant, then test the cooling system for combustion gasses - make sure not to add new coolant prior to the test or you may get a false positive. Quote Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
Robert Hofer Posted June 20, 2013 Author Report Share Posted June 20, 2013 Rockfangd, I did as you suggested, I'm sure there are certain things you'd look for in these codes, I tried to write everything down but got lost. Trying to be smart I videod it w/my phone and then rather than try to upload a file that someone might be afraid to open I just posted it on youtube. Sorry it's sideways, but maybe you can make some sense of this? Thanks for all f your help video link: http://www.youtube.com/watch?v=R8BIFz_cr6g&feature=youtu.be Quote Link to comment Share on other sites More sharing options...
Cadillac Jim Posted June 20, 2013 Report Share Posted June 20, 2013 PCMCURRENTP0135 Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 1P1189 Engine Oil Pressure (EOP) Switch CircuitP1258 Engine Coolant Overtemperature - above 268°F - Protection Mode ActiveP1599 Engine Stall or Near Stall DetectedACMB1350 Engine Coolant Over-TemperatureSDMB1163 Loss of Serial Data-No Lamp ResponseU1096 Loss of Communications with IPCU1255 Class 2 Communication Malfunction (Serial Data Line Malfunction)B1327 Vehicle system voltage below 9.0 voltsTCSCURRENTC1242 Pump Motor Circuit OpenC1243 BPMV Pump Motor StalledC1255 EBCM Internal Malfunction (ABS/TCS Disabled)IRCB1983 Device Power Circuit LowRFAB3108 Transmitter Synchronization FailureU1300 Class 2 Short to Ground Quote -- 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...
Robert Hofer Posted June 21, 2013 Author Report Share Posted June 21, 2013 That's a lot of info, not sure what it all means, especially as pertaining to my problem (s). If the info on the coolant temperature is 'current' it can't be correct as the car has not been moved or started in over 36 hrs. I haven't checked the purge line yet. Is that the next step or do these codes mean I need to go in a different direction? Quote Link to comment Share on other sites More sharing options...
Texas Jim Posted June 21, 2013 Report Share Posted June 21, 2013 Check the purge line as soon as you can... It "MUST" flow coolant to the recovery tank or you "WILL" over heat... Quote Link to comment Share on other sites More sharing options...
Robert Hofer Posted June 21, 2013 Author Report Share Posted June 21, 2013 Will get it tomorrow after work! Thanks!! Quote Link to comment Share on other sites More sharing options...
Robert Hofer Posted June 21, 2013 Author Report Share Posted June 21, 2013 Cadillac Jim, Thanks for all that information, I appreciate the time you spent on it for me! It'll give me a direction to do some more research. Quote Link to comment Share on other sites More sharing options...
Robert Hofer Posted June 21, 2013 Author Report Share Posted June 21, 2013 Okay, I'm getting ready to check the purge line, is this the bolt everyone is talking about? https://www.facebook.com/photo.php?fbid=10201273129780722&set=a.1118192245453.2018606.1546413957&type=1&theater Thank You Quote Link to comment Share on other sites More sharing options...
Cadillac Jim Posted June 21, 2013 Report Share Posted June 21, 2013 No, it's a a fitting going into the crossover near the thermostat housing, and it has a hose on it. The hose goes to a metal hose that goes under the beauty cover and emerges near the surge tank, where another 3/8" rubber hose connects it to the surge tank. A quick way to check it while the engine is cold is to disconnect the hose at the surge tank and start the car. Coolant should come out the hose freely, but not squirt. If it doesn't, or just drips, the fitting at the crossover is probably clogged. Quote -- 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...
Robert Hofer Posted June 21, 2013 Author Report Share Posted June 21, 2013 While waiting for reply removed hose from coolant tank, got nothing coming from hose. Removed tubing from other end and it was clogged, and I heard a gurgling sound coming from drivers side! Going to clean it out and before reattaching restart car and make sure coolant is coming from where tubing was hooked up. Quote Link to comment Share on other sites More sharing options...
Robert Hofer Posted June 21, 2013 Author Report Share Posted June 21, 2013 looks like it just has spring clamps on it, not a bolt Quote Link to comment Share on other sites More sharing options...
Texas Jim Posted June 21, 2013 Report Share Posted June 21, 2013 looks like it just has spring clamps on it, not a bolt The end where the hose attaches to the engine is what we call the "BOLT WITH A HOLE IN IT"... You should remove it.. clean the clog from it and then reinstall it. If you just push the clog back into the engine... it will eventually stop up again... Quote Link to comment Share on other sites More sharing options...
rockfangd Posted June 22, 2013 Report Share Posted June 22, 2013 that is a good sign. The bolt with the hole in it is what the hoes goes onto on the driver side. Like I said it is below the driver side dogbone mount Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
coryno Posted August 11, 2016 Report Share Posted August 11, 2016 Anybody figure out how to repair this issue im having the exact same problem with my 97 deville Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 11, 2016 Report Share Posted August 11, 2016 1 hour ago, coryno said: Anybody figure out how to repair this issue im having the exact same problem with my 97 deville Explain what the problem is exactly. Leaking, overheating, losing coolant, cooling fans not working? Explain in detail Dont forget to check for codes and post them here. If you dont know how see the bottom of my post here. 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...
coryno Posted August 11, 2016 Report Share Posted August 11, 2016 My car overheats after about 10 minutes of driving, my coolent fan doesn't come on and there's steam coming up from the left side of where the battery sits (seems to be coming from under the battery tray somewhere). It also drips a little coolent after I park where the passenger side tire is Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 11, 2016 Report Share Posted August 11, 2016 Ok, check to codes to see if you have cooling fan codes. The coolant tank can crack, or the hoses attached to it can leak. There is a hose at the bottom, a hose at the top that comes from the air purge line and an overflow hose. The easiest thing to do is to pressurize the system to find the leak.. Inspect the tank area for leaks. 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...
coryno Posted August 11, 2016 Report Share Posted August 11, 2016 (edited) Here's what I saw with the car off and key turned forward but have no idea what I'm looking for. PCM P0603 HISTORY P1258 HISTORY P1645 HISTORY IPC B1552 HISTORY B2710 HISTORY B2711 HISTORY B2750 HISTORY B2781 HISTORY ACM B1348 HISTORY SDM B1147 HISTORY B1148 HISTORY B1161 HISTORY NO TCS CODES PZM B0533 HISTORY B1552 HISTORY B1558 HISTORY B1971 HISTORY B1983 HISTORY B2471 CURRENT U1128 HISTORY IRC B1771 HISTORY U1255 HISTORY U1064 HISTORY NO RFA CODES MSM B2109 HISTORY B2115 HISTORY B2116 HISTORY B2117 HISTORY B2118 HISTORY B2119 HISTORY B0856 HISTORY B1982 HISTORY B1656 HISTORY NO MMM CODES PCM? Edited August 11, 2016 by coryno Quote Link to comment Share on other sites More sharing options...
coryno Posted August 11, 2016 Report Share Posted August 11, 2016 26 minutes ago, BodybyFisher said: Ok, check to codes to see if you have cooling fan codes. The coolant tank can crack, or the hoses attached to it can leak. There is a hose at the bottom, a hose at the top that comes from the air purge line and an overflow hose. The easiest thing to do is to pressurize the system to find the leak.. Inspect the tank area for leaks. Does the hose from the bottom route under the battery somewhere Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 11, 2016 Report Share Posted August 11, 2016 No, it heads back toward the heater pipes. Hose #1 in this scan is the hose that attaches to the tank 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...
coryno Posted August 11, 2016 Report Share Posted August 11, 2016 I'll check the reservior and hoses tomorrow morning when I have sunlight and keep you updated. I'm still wondering why steams coming from between the battery and passenger side finder though. Thanks for the insight Quote Link to comment Share on other sites More sharing options...
Cadillac Jim Posted August 11, 2016 Report Share Posted August 11, 2016 Don't panic at this list: PCMP0603 Control Module Long Term Memory Reset P1258 Engine Coolant Overtemperature - above 268°F - Protection Mode Active P1645 Evaporative Emission (EVAP) Vent Solenoid Control Circuit IPCB1552 Keep Alive Memory (KAM) Error B2710 PASSKey Open/Shorted Pellet B2711 PASSKey Open/Shorted Pellet After Good Key B2750 PASSKey Data Communication Failure B2781 Wrong Resistor After Good ACM B1348 Very Low A/C Refrigerant Pressure SDM B1147 Driver Side Air Bag System Malfunction B1148 Passenger Side Air Bag System Malfunction B1161 Lamp Circuit Failure NO TCS CODES PZM B0533 Fuel Sensor Open/Shorted To B+B1552 Keep Alive Memory (KAM) Error B1558 BCM EPROM Checksum ErrorB1971 Inadvertent Power B1972 Low Power Driver Fault B1981 Battery Voltage LowB2471 Interior Lamp Fault CURRENT U1128 Loss of Communications with IRC IRC B1171 Internal SDM Failure U1255 Class 2 Communication Malfunction (Serial Data Line Malfunction) U1064 Loss of Communications with DIM NO RFA CODES MSM B2109 Lumbar Aft Switch Failed B2115 Recline Sensor Failed B2116 Rear Vertical Sensor Failed B2117 Horizontal Sensor Failed B2118 Front Vertical Sensor Failed B2119 Lumbar Forward/Aft Sensor FailedB0856 Battery 2 Out of Range B1982 Device Power Circuit High B1656 EEPROM Write Error NO MMM CODES Since ALL of these codes except B2471 Interior Lamp Fault are HISTORY, and you show all the codes for low battery voltage (bold emphasis above), you probably have had battery voltage below 8 or 9 Volts while starting the car recently. You should check the battery and cables, put it on a charger overnight, and reset the codes (see more on this below). Then you drive the car and see which codes come back. If a huge number come back, have the battery checked and make sure that you have a good, fully charged battery and reset the codes. You can reset the codes using the diagnostic mode by continuing past the "CODES?" prompt until you see "RESET CODES?" and the press FAN UP for YES. This has to be done for each module. You can disconnect the battery negative terminal, which will reset nearly all codes, but this will in turn set P0603 and B1552. The only code you can count on is the CURRENT code, B2471 Interior Lamp Fault. The FSM says to check the 10 Amp (red) INT LPS FUSE in the engine compartment fuse/relay center, and the courtesy relay in the trunk compartment relay center #2. That said, I don't see any fan codes. Quote -- 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 August 11, 2016 Report Share Posted August 11, 2016 Thanks Jim for describing all the codes. Ok, you seriously overheated and you don't have any codes for cooling fans. I did note that you have a B1348 - Very Low A/C Refrigerant Pressure. This code will disable your AC compressor and cause your cooling fans to operate differently than if the AC were operating. You will get higher temps with the AC off, than with it on because with the AC on the cooling fans run constantly whereas with the AC off, the cooling fans don't come on till 217 degrees. The summer is almost over, but you should have your AC evacuated and recharged, have them add dye to make leaks easy to find. That said, next time you get a chance, idle your engine and watch your cooling fans, watch the temp they turn on and off at. What year and model car do you have? Does it have a digital or analog temp guage? While you don't have any codes for cooling fans indicating that they are operating correct electrically, if a motor is burned out it wont set a code. I have seen motors that turn very weakly because the brushes, bearings or windings are bad. Let us know if you find the source of your leak. Look at the upper radiator hose that connects to the top of the radiator near the battery for pin holes and leaks at the clamp also 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...
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