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Found 25 results

  1. Hello folks I own a 1999 Cadillac Deville and I was told by my mechanic that I have a blown headgasket... We have tried using blue devil headgasket sealer which worked for about 1 day and then the overheating appeared again. I was quoted by my mechanic that the job to fix the engine would cost anywhere between 2500-5000 dollars depending on the severity of the damage. Coolant was replaced thermostat was replaced... unfortunately this did not fix the issue I rely on my Cadillac heavily for work and I need a inexpensive fix and fast one ASAP that will last me and not pillage
  2. Hello. I am stumped but for some reason my 1997 Cadillac Seville has started to produce a lot of smoke out of the exhaust when revving the engine or on starting him. It's been quite hot out so it's not just steam, the smoke alters in smell between acrid to sweet, and seems to reduce the longer you drive or the lower you idle. I am at a loss. A week ago I filled it to the brim with anti-freeze and filled up the oil to the max mark. It's not pitching any other symptoms other than the copious smoke (I don't think it's a head gasket). If anybody has any ideas I would love to hear them. I'm stumped
  3. Northstar Head gasket repair and oil leaks: My oil leaks are too bad to drive the car farther than it takes to get the crossover pipe hot. I also have 150,000 miles and will be racing the car. The Head bolts have not yet pulled out enough to cause the head gaskets to fail. However, the process needed to repair my oil leaks will have the engine out of the car, so most of the labor costs associated with a head gasket repair will already be in play. I've decided to save money in the long range by spending a little more now and having both jobs done at once. If you cannot drive your car to
  4. I've been working on cars since age 11 and was happy to be given a 1999 Deville from a guy at church. He'd given up on it. Body and interior are in excellent condition. More brand new parts than you can shake a stick at. Down to brass tacks... It's overheating. The guy that owned it before me got it up to 250F. He pulled over and killed the engine. From that point and without his knowledge, it blew out the freeze plug from the head. I was able to fix that. I've never had a car run 205F-225F and be considered normal. I need to know how to keep this from getting over 190F - even if I have to
  5. Hey y'all. Fresh meat here. I’m looking for some advice on a 1998 Cadillac Eldorado that is for sale near me for $3500. The vehicle has just over 71000 miles on it, has one of the Northstar V8 engines in it, and actually looks in fairly good shape (see linked image). But, as a poor college student that needs his ramen noodle funds, I’ve done my research to see if there’s a reason for the low price tag on such a neat looking vehicle. And I found it, maybe, and I’ve had some second thoughts. I’ve been reading around on a couple different sites and forums about the vehicle, and a concer
  6. I found a company that can reprogram the PCM in my 02 Eldorado, so now engine mods, swaps, tunes, cams, etc. are viable options. It's going to cost $2400-$2700 at a local shop specializing in the Northstar blown head gasket problem to have my engine repaired and oil leaks fixed depending upon how much I have them do to the car. They recommend upgrading to the head stud kit if I plan to add nitrous or a turbo: otherwise use the oversized bolts and inserts they keep in stock. The 4.4 superchargers are affordable in used condition. If they will bolt up in place of the stock 4.6 intake,
  7. More information and photo's of the condition he left the man's Cadillac in after Carroll dropped it off at the Princeton, Texas, Walmart: http://victimsoftimcarroll.blogspot.com/2017/05/tim-carroll-sued-in-collin-county.html
  8. Hey guys I have an 04 srx v8 northstar. I just purchased it with a known misfire #7. I through a set of filters and ngk plugs and coils at it and now I only have a soft skip at idle. It gives me cylI Der number 8. I changed the plug coil and injector to different cylinder and no change. Also did compression and that was good. I have 15inhg vac at idle and needle jumps a little with the skip. If I unplug number 8 it gets much worse of skip. Fuel pressure running is 60. I left gauge on for the day taped to windshield and one trip into store it had dropped down to 15 psi in 30min. But only that o
  9. Hello everyone, 96 Cadillac Northstar 4.6L Symptoms high idle and constant revv So I pulled the Intake manifold and coolant started to leak out of the bolt hole(Closest to plug 8) under the intake. Picture included, the leak will stop with the bolt hand tight with the intake off. No Codes. I am wondering is this a head gasket or something else? Would sealant be a bad idea? PS Picture I grabbed from the internet. My car is not this dirty
  10. Hi - it has been a while. I have had very little time to think about car stuff lately - even Cadillac stuff. I got married, defended my PhD, got a job, bought a house (I finally have a garage ), and very recently became a father. I still have the '97 DeVille, but it is now in need of some major renovations. There is oil going into the coolant (luckily not the other way around), misfiring, increased fuel consumption, high carbon monoxide levels in the exhaust, coolant consumption and so on. I am guessing a blown head gasket - certainly not something "less bad" - either way the engine will have
  11. Get off the wagon people! I have been working on these cars for 20 PLUS years from the conception in 1993. I have not had any issues with timeserts let alone NORMS inserts and I am not the only one obviously using these inserts. They work period and with the thousand of head gaskets let alone hundred or so rebuilds i have done without any issues. LEAD DON'T FOLLOW....
  12. I have. 1994 DeVille Concours and it recently turned 132,000 miles. I heard a clicking coming from the Idle air Control Valve after replacing it. I couldn't stop it so I decided to support my local dealer and dropped it off. They fixed the IAC valve and proceeded to flush my power steering system, this is where the trouble begins. I get a call from the dealer and the service advisor tells me he has bad news. "The car seriously overheated he tells me when the car is left idling for a while. I know you won't like this but your car suffered serious damage and may have warped one or both of t
  13. As I promised first patch of my Cadillacs photos: More to come...
  14. Hello all, I'm new here, Been with Bruce in Google+ circle for a while now, but never participated in any chats till today, and finally decided to create a Caddyinfo.com account. about me: Late 20s guy, Network engineer, Just got my master from DePaul University in IS-DBA, enthusiast photographer and all tech guy. always been a car enthusiast, Currently a proud owner of 09 STS4 1SG and 05 SRX4 base, Recently sold my "landboat" a beautiful 03 DeVille black on black with 185,000+ with near mint condition exterior, I do my own repairs almost all the time unless its the transmission then i'
  15. I hope I am posting in the right spot. I have a 1997 Eldorado ETC, 108K miles. It had a crack in the radiator upper right side. I replaced the radiator and tstat, but, its still overheating after about 15 miles. I have flushed the block and new radiator, cooling fans work, pass over not plugged. I have run it with and with out tstat. I am at wits end. All I can come up with is the heater core (which shows on signs of leakage) It has also developed a good miss, I think I need to replace a couple coils, no biggie, unless it is related to this. Any help or advise is GREATLY appreciated.
  16. I am new to the forum, I bought the most beautiful 95 El Dorado with 126k on it. I got a great deal on it and assumed that it has a blown head gasket. I am continuing to get bubbles into the overflow tank and of course it overheats after a short while. I did run the exhaust gas test blue liquid at the radiator over flow tank for several minutes and it never turns yellow. I am going to try this test again to make sure i did not contaminate the test. I have read that someone said something about a purge tube or something regarding the bubbles. Not sure where that is, but i will locate it.
  17. This question is about a 1997 Cadillac DeVille with the 275 Hp version of the Northstar engine. As part of my regular inspection routine, I checked the coolant a few days ago, and it looked somewhat strange. Today, with a 200-mile trip since I first noticed the strange look of the coolant, i checked it again, and it looks like there is oil in the coolant. Not very much, but just a few drops visible in the surge tank, and a some traces of it on the plastic tab/ridge that sits right under the surge tank cap. - The coolant level has not changed, and the engine oil looks normal (light brown and
  18. Here's the deal, my 97 northstar has been getting hot and not sure what to do. Replaced the thermostat, did not get a flush kit but drained the system and ran a ton of water through it with a hose. It has been doing ok at highway speeds. I can drive like half an hour on the highway and then come to a stoplight and sit and the temp starts rising and my oil pressure light flashes off and on. Seems to overheat at a a stand still. on the other hand, i started it and let it idle for 30 minutes in the driveway and it was fine. Oil is not milky so I do not think this is related to head gasket proble
  19. The Northstar in the 1997 Eldorado developed a compression problem in number 8. A leak-down test revealed that the intake valve is causing the problem. A Caddyinfo Supporter will pick up the car in a few days and pull the front head. What we do from there depends on exactly what we find. Expectations are that we will do a valve job and put it back together. Watch this space for developments. This is a collaborative DIY project with multiple Caddyinfo participants. As such, progress is subject to availability of time, and there will be deliberations and discussions that usually won't be
  20. Hello. My 1994 Eldorado ETC (4.6 Northstar) was showing a CEL and throwing P094, P095 and P076 codes. I replaced the A and B solenoids, reset the codes and test drove. The P094 and P095 codes are gone and have stayed gone. However, the CEL came back on almost immediately and the P076 code is still there. The car will not shift into third or fourth. It shifts only from first to second. HOWEVER, if I clear the PCM codes and leave the diagnostic function engaged, the car shifts fine. When I take it out of diagnostic mode (pressing defrost) the car immediately goes back into second. I have the pre
  21. Just letting you guys know I am here still doing HG repair on Cadillac Northstar engines, and overhauls too. I am located in the NE part of Indianapolis, IN and have an EBAY ad under northstar head gasket repair. I have done hundreds of these engine in my 20 year career and have had no issues period! I have 75 references from yesterday to 4 years ago, from Indianapolis to NY, OK, TX. 1800 is my price with a 18 month/UNLIMITED MILE warranty . Thanks Brad Barczy http://www.b-and-b-automotive.com/
  22. Hello, I have a 2001 DeVille for sale with only 57k miles. Northstar V8, cloth seats, all four heated and back only heated seats, electric everything, On-star ready. Great car but I would like to see it go to someone who appreciates Cadillacs. I live in San Diego and will not ship the car but it is ready to be any distance if you want to pick it up yourself. Asking $6950 You can email me with any questions or to get more photos: Dnesselroth@hotmail.com
  23. There are oxygen sensors that control the fuel delivery and there are those that check catalytic converter function. I sometimes get the engine light turn on when it is cold, with codes that tell me that the heating is not working properly in the O2 sensors (PCM 0135 and 0155). Those codes are for the O2 sensors in the manifolds (one for each cylinder bank). I am now about to replace those two O2 sensors, and I have two questions: What is the difference between AFS109 and AFS125? Both have the following (identical) description on Rockauto: SENSOR,HTD OXY(POSN 1) IN EXH MANIFOLD/CROSSOVER. The
  24. I just brought a '97 D'elegance yesterday for $1,000 in Maryland. It overheats almost immediately. Every time I drive it the temperature shoots up pretty fast around 244F in about 5-10 minutes or so. What did I get myself into? I think I got got. Oh well. What are some fixes? I dumped $135, for a battery, $240 for MDTags, $10 for tool kit to put in battery and tags, $ 368 for 1st and last months insurance. As well as the $1,000 for the car. I'm felling stubborn. I want to make it work. I refuse to just have wasted almost $2,000 in less than 24hrs!
  25. Im the guy who purchase a beautiful 99 black STS in Denver that had a horrible knock due to the previous owner not caring the car. Well, get this. I found a beautiful actually brand new (2,100) miles on a "9" Northstar. Bought the beauty from a the service guy at Don Massey Cadillac, got it for only 1,100.00. It was still in the crate. Had it hauled down to my mechanic a GM mechanic for installation. The engine is a 2001 and asked my friend and service manager at Rickenbaugh Cadillac if 2001 "9" would fit in a 99. He called me back and said it would. Great. I get a call from my mechani
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