I am thinking of buying a 03 Cadillac STS. Any alarms I should be looking for??????


Asked by shilow Nov 03, 2012 at 07:57 AM about the Cadillac Seville

Question type: Maintenance & Repair

4 Answers

John Leone

north star engine? every single northstar has the same problem around 50-60,000 miles the head bolts come loose causing head gasket leaks, (due to aluminum heads/aluminum block, and not deep enough threads)because GM wanted to use the Indy car engine as a sales pitch, not realizing after each race the engine is scrapped and replaced....., only guarantee...I had the DHS for a while, liked it., if you find a mechanic that knows the issue they know someone that will tap it out enough, (usually a $1200. fix), but lasts, unlike swapping engines....also the sunroof drains become clogged at times, causing water to back up in the car, (could total it out by insurance purposes), check behind the glove box..not in it, behind, for water damage/residue/marks....carfax carfax carfax, and spend the extra $125. for a second dealer to give a once over for damage/approval of safety and reliability...

2 out of 2 people think this is helpful.
Best Answer
Not Active

shilow, I don't personally know about them but what I do know is John does know what he is talking about--listen to him, for your benefit

1 out of 1 people think this is helpful.

Hello everyone: Thanks for the answers, this really helps me. I now have to really get the car checked out before I think of buying it. The car has 70,000 kilometers only but I will make sure a mechanic looks at it before I commit to purchasing!


Hi: I have a1999 Seville SLS. beautiful car but .................................... i've litterally had to rebuild it to the une of about 8 grand. Sure you want to do this? Too late and well after the fact I found out that the slob that owned the car didn't know a thing about Cadilacs and the Northstar engine in particular or what they cost to keep up. I spent a lot of money on the Traction Control. I ended up haveing the on-off switch disconnected. I've done valves, head gsdkets radiator, power steering and a bunch of other stuff. a lot of people buy these cars and can't afford them so guys like you and i come along and end up spending a lot of money. If you can get any information on the previous owner do so. Good luck. David

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • 1993 Cadillac STS 2 answers

    Cad wasn't a choice!!! I have a 93 Seville STS. Reverse does not work. All other gears are fine. The car creeps forward in Neutral. Pulled pan all looks clean. Replaced fluid. same problem. I...

    1993 Cadillac Seville STS


    Maintenance & Repair

  • Where is the thermostat located on 1998 STS Northstar 25 answers

    I have been told that the thermostat is located in two different places and for whatever reason, I cannot find a definitive answer. So is it located with/near the Water Pump Housing or is lt located t...

    1998 Cadillac Seville STS


    Maintenance & Repair

  • my cadillac 2000 sts 2 answers

    my cad sts motor just died while driving on the highway and no one wants to help me as far as customer service what should I do A gen'l motors rep was supposed to look into it and they never call me b...

    2000 Cadillac Seville STS


    Maintenance & Repair

  • 2000 Cadillac seville sts 3 answers

    I have had problems with my 2000 Cadillac sts seville overheating and coolant spewing out of resivoir it will be fine and then heater will stop being hot and car will overheat i have been changing t...

    2000 Cadillac Seville STS


    Maintenance & Repair

  • i am looking into buying a used 2001 STS. i would like to know how reliable they are, and if parts are expinsive. What kinda things should i look for when buying. 8 answers

    Are there other models that mite be better? I need a 4 seater under 7000 that is still nice, and not imbarasing to drive.

    2001 Cadillac Seville STS


    Shopping & Pricing

Looking for a Used Seville in your area?
CarGurus has 513 nationwide Seville listings starting at $1,450.

Search Cadillac Seville Questions

Cadillac Seville Experts

#1 Tom Demyan
Tom Demyan
Reputation 290
#2 carpetguy53
Reputation 240
#3 Js08016
Reputation 220
View All

Related Models For Sale

Used Cadillac DeVille"
15 Great Deals out of 2,260 listings starting at $1,988
Used Cadillac STS"
59 Great Deals out of 1,480 listings starting at $2,495
Used Cadillac Eldorado"
4 Great Deals out of 434 listings starting at $1,450
Used Cadillac DTS"
82 Great Deals out of 1,888 listings starting at $2,650
Used Cadillac CTS"
336 Great Deals out of 13,639 listings starting at $185
Used Chevrolet Impala"
1,496 Great Deals out of 45,051 listings starting at $170
Used Cadillac SRX"
391 Great Deals out of 17,018 listings starting at $2,950
Used Cadillac Escalade"
236 Great Deals out of 8,016 listings starting at $3,477
Used BMW 7 Series"
91 Great Deals out of 4,731 listings starting at $3,695
Used Ford Mustang"
663 Great Deals out of 41,815 listings starting at $1,500
Used Chrysler 300"
455 Great Deals out of 22,278 listings starting at $2,500
Used Mercedes-Benz S-Class"
154 Great Deals out of 6,976 listings starting at $2,000
Used Cadillac STS-V"
4 Great Deals out of 34 listings starting at $10,900