BodybyFisher Posted January 1, 2006 Report Share Posted January 1, 2006 The ONLY thing I have to say is this, up until recently, at 100,000 miles most cars were sent to the junk yard. IF in fact these cars are running into trouble around 100,000 miles, I say.... so what. Most of the time, the remainder of the vehicle is in good condition, and either having the head gaskets done or doing them yourself (not an option for many), provides you with a good car. For me, I am looking for a newer NS that HAS a headgasket problem so that I can fix it and have a good car afterward. Has GM improved the design over the years yes, I believe it has (dexcool, redesigned head gaskets, time-sert repairs and longer and more hearty bolts). Just remember that at 100,000 miles most cars in the 50's through 80's were junk. 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...
stlthbmr Posted January 5, 2006 Report Share Posted January 5, 2006 96 STS 120,001 mi. I'll be putting timeserts in during head gasket replacement next week. Last week on a trip to Fl. I started overheating and blowing coolant. I called my brother and he came and rescued me with his trailer. Who says Cadillac aren't exciting. Anyway the cars gettin older, I've allways had it to the floor, and its never let me down. I'm just suprised it took this long the way I drive. Quote Link to comment Share on other sites More sharing options...
99 STS MAN Posted February 14, 2006 Report Share Posted February 14, 2006 IT WILL BE THIS WEEKEND IT HAS 127,000 MILES Quote Link to comment Share on other sites More sharing options...
theGman Posted February 15, 2006 Report Share Posted February 15, 2006 Gman update: my '96 is getting it done now. About 122K. Always maintained well, with correct antifreeze used and changed. Quote Link to comment Share on other sites More sharing options...
ramdge Posted February 15, 2006 Report Share Posted February 15, 2006 I am finishing up the timesert process on my 1995 STS. It has been a slow process since I can only work on it over the weekend when the weather is nice. It has about 114,000 miles and the people a bought it from were nice enough to let me know that it needed headgaskets before I bought it. It is my 1st Cadillac and I really like the car so I hope the timesert process will fix the overheating problem. I got it at a good price. I will report back, when I get it installed and tested. Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted February 25, 2006 Report Share Posted February 25, 2006 I am finishing up the timesert process on my 1995 STS. It has been a slow process since I can only work on it over the weekend when the weather is nice. It has about 114,000 miles and the people a bought it from were nice enough to let me know that it needed headgaskets before I bought it. It is my 1st Cadillac and I really like the car so I hope the timesert process will fix the overheating problem. I got it at a good price. I will report back, when I get it installed and tested. Definately report back your timesert job we are all interested in how it goes. We have a wall of FAME of members who timesert their engines that you will need to be included in! Start a new thread and post photos if you can. Mike 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...
Fast95SLS Posted February 26, 2006 Report Share Posted February 26, 2006 272,965 hard miles and still going strong. I use recommended severe service miles for all maintainence. Quote Link to comment Share on other sites More sharing options...
AliRaza Posted March 1, 2006 Report Share Posted March 1, 2006 I did headgasket and the timeserting with my 97 Seville SLS and already drove 25K miles with no problems.... Its about 145K miles and still running. Quote Link to comment Share on other sites More sharing options...
mikeal1892 Posted March 19, 2006 Report Share Posted March 19, 2006 wow, Ive never heard of such a thing as timeserting. I must be new.. lol I've had 5 cadillacs and I have never had to have this done but only the last two have had the Northstar. I do belong to several other forms and in the short time I have been a member I have learned more on here than the other! Michael S Quote Link to comment Share on other sites More sharing options...
BigCat83 Posted March 19, 2006 Report Share Posted March 19, 2006 '97 Eldorado, not quite 80,000 miles no problems, analy maintained and tighter'n a bull's @$$. Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted March 19, 2006 Report Share Posted March 19, 2006 (edited) wow, Ive never heard of such a thing as timeserting. I must be new.. lol I've had 5 cadillacs and I have never had to have this done but only the last two have had the Northstar. I do belong to several other forms and in the short time I have been a member I have learned more on here than the other! Michael S Mike check this site to see what timeserts look like http://www.timesert.com Mike Edited March 19, 2006 by BodybyFisher 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...
mikeal1892 Posted March 19, 2006 Report Share Posted March 19, 2006 great, ill check that out. thanx mike! michael Quote Link to comment Share on other sites More sharing options...
KHE Posted March 21, 2006 Report Share Posted March 21, 2006 wow, Ive never heard of such a thing as timeserting. I must be new.. lol I've had 5 cadillacs and I have never had to have this done but only the last two have had the Northstar. I do belong to several other forms and in the short time I have been a member I have learned more on here than the other! Michael S Timeserts are the only thread repair products that will successfully repair Northstar headbolt holes. I will be doing that job on my '97 STS in a couple of weeks. Quote Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
BodybyFisher Posted March 21, 2006 Report Share Posted March 21, 2006 Can't wait Kevin, take photos! :-) 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...
KHE Posted March 21, 2006 Report Share Posted March 21, 2006 I will take plenty of photos. In the back of my mind, I am hoping it is a plugged return line to the surge tank or a frozen waterpump belt tensioner.... Quote Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
BodybyFisher Posted March 21, 2006 Report Share Posted March 21, 2006 (edited) I will take plenty of photos. In the back of my mind, I am hoping it is a plugged return line to the surge tank or a frozen waterpump belt tensioner.... Imagine how cool that would be? You can make that determination really quickly, I would purchase one of those kits that detects combustion gases in the coolant so you can cut to the chase real quickly when you get it to the motel on the way home.... Here is that kit: http://www.napaonline.com/MasterPages/NOLM...2f+Engine+Block Here is the manufacturer with a better description: http://www.testtoolsinc.com/ Edited March 21, 2006 by BodybyFisher 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...
KHE Posted March 22, 2006 Report Share Posted March 22, 2006 I doubt it's as simple as a stuck waterpump tensioner or plugged line to the surge tank but it would be unbelievable it it was. I've never used a kit like that before - I may try it if the spark plug air adapter is inconclusive. I have one just about finished on my bench. The troubleshooting will commence Friday evening....Stay tuned. Quote Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
howex Posted April 14, 2006 Report Share Posted April 14, 2006 97' STS 42,000 everything original Quote Link to comment Share on other sites More sharing options...
BodybyFisher Posted April 14, 2006 Report Share Posted April 14, 2006 97' STS 42,000 everything original redhot, make sure you changed your coolant by now. It needs to be changed at 5 years or 100,000 miles, Mike 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...
mikeal1892 Posted April 16, 2006 Report Share Posted April 16, 2006 97' STS 42,000 everything original redhot, make sure you changed your coolant by now. It needs to be changed at 5 years or 100,000 miles, Mike I couldnt agree anymore ! Change it !! Michael- Quote Link to comment Share on other sites More sharing options...
lizshack Posted April 25, 2006 Report Share Posted April 25, 2006 Changed head gaskets and timeserted at 74,000 miles, poor coolant maintanence from the last owner Quote Link to comment Share on other sites More sharing options...
yower Posted May 26, 2006 Report Share Posted May 26, 2006 Hi, Long time reader, new poster. 1998 Seville SLS 108K After a month of "gulping" coolant and running hot after driving 20-40 miles, Replacing head gasket and having timeserts from dealer. $4600 Will be keeping the coolant changed every chance I get from now on that is for sure!! Thanks for all the great tips, etc. Quote Link to comment Share on other sites More sharing options...
LINDAL Posted June 23, 2006 Report Share Posted June 23, 2006 1994 STS had 164000 when it was wrecked and totaled. No engine gasket problems. 1995 STS 135,000 ... still driving it no gasket problems no time serts, has an engine oil leak 1997 Eldorado My sons car under 90,000 needs head gaskets and time serts-- Will be doing it ourselves. Fourth Cadillac in the family and the first one to need this type of repair. It had to be my sons first car. He works at Walmart to pay for it and has not been able to drive it for 2 months now. Quote Link to comment Share on other sites More sharing options...
GreenMachine Posted July 2, 2006 Report Share Posted July 2, 2006 to my knowledge my 98' deville has not been time-serted and hasn't had head gasket problems. Just under 90,000 and coolant change was done (with the proper tablets and precedure) just a a week or so ago. Not sure if first time or not but the coolant that came out "looked" still like it was ok just darker and some lumps. Quote The Green's Machines 1998 Deville - high mileage, keeps on going, custom cat-back exhaust 2003 Seville - stock low mileage goodness! 2004 Grand Prix GTP CompG - Smaller supercharger pulley, Ported Exhaust Manifolds, Dyno tune, etc 1998 Firebird Formula - 408 LQ9 Stroker motor swap and all sorts of go fast stuff Link to comment Share on other sites More sharing options...
Cadillac Jim Posted July 7, 2006 Report Share Posted July 7, 2006 I need to change my vote. My 1997 ETC was recently diagnosed with head leakage by means of a pressure test of the cooling system. When the engine was out for replacement with a remanufactured replacement engine, the mechanic showed me where coolant had been seeping out the left rear corner. Technically, I replaced the engine and didn't timesert it, but the remanufaturer will when he uses the core. 1997 ETC -- Yes (change my vote from 2004 or 2005) Mileage 116,600 From posts here, I am sure that the root cause is not changing the coolant for seven years. I'm going to three-year coolant changes from now on. 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...
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