Problem Reports

i leak oil and understand there is a new way to fix w/o taking the engine out.

oil leak from lower crankcase seal

Oil leaking. Was told majority coming from main half block seal other from valve covers.

rear main oil leak

i leak oil very bad and i have to put atleast a quart in every 3 days. what could be causing that?

 Rookie

leak oil from the bottom

118,000 when purhased from first owner. Had this oil leak for quite some time judging from oil sludge all over under car. Had oil changed and had leak checked. Slow leak, not fixed yet. Too much $$$

 Rookie

From the first Northstar engine I brought, 1997 Deville , has cost me 1000's of dollars because of the many problems. The 2005 Deville I also have now also leaks oil and my mother inlaw also has a 2005 DTS that leaks oil.

The question is: Who was the dummy that designed and who allows this engine to be put in Cadillac. After all problems you would hope they would fix this problem. But they don't!!

I have owned Cadillacs starting with a 1959 though 1990 and never had problems. But now from the time they first install the Northstar engine they have been nothing but junk.

I will never buy another Cadillac again.

Jerre N. Fischer

SLOW LEAK IN FRONT BOTTOM OF ENGINE

 Rookie

white smoke & water coming from tail pipes, did smell oil one time but nothing on ground, just hade engine replace, in march/11, also no warning lights, on dash.

oil leak upper to lower crankcase housing seal. a bitch of a job gotta take everything out.

Told half block leaks car. Thought I was getting a price on a good car. I will not buy another DeVille.

dealer fixed the leak

Not fixed.

Noticed I had to continually check the oil....and continually add oil...severe leak!!also hydralic suspension system needs replacing, air flow sensor and throttle something to do with the air flow. It seems to be down hill from the 100,000 mile mark. Alternator one week something else the next week or two... so now I have to decide if the body is worth keeping because the mantaining of the engine has gone overboard in COST!! this is not just UP-KEEP or what they call MAINTAINING the car.

Found out about the leak when I went to trade it.

Found a small leak. Had a diagnostic done. Crankcase and rear seal need replacement. $4900 to fix.

Woke up this morning... started my cadillac... a whole lot of commotion going on under the hood, so i just leaned my head back...

couldn't help but see white smoke in the rear view...choking from the smoke in the garage i backed out and wondered what to do...

I Saw oil on the floor and all over the oil pan... I wondered if my baby was driven by another man... I went to mr. cadillac to get my baby some help... He told me to come back monday because so he could take further steps...

I was qouted $1500 to get back...it makes me wonder why I bought a cadillac...

The sky is falling...and I'm the only one getting wet!!!

significant oil leak, unrepaired as of 3/22/12

lower crankcase and oil manifold plate leaking. $3,500 at Cad. dealership. Same thing happened on our 98 Sed. Deville. Is there a lawyer out there?

 Rookie

Had to replace engine oil when I first bougt the Caddy, and ever since now in 2012 it is leaking that I have to put in one to two quarts in every 2 to 3 weeks. and the Service Engine Light is now on. My sensors are all crazy on off on off and now the Service Engin Light is on and all of the other lights are off - go figure.
I brought my car in for a estimate and the estimate is $3,000.000 (ouch!) for a 2000 Caddy. Estimate is for Transaxle Assembny Labor - Removal & Installation $984.50 (Does not include wheel alignment- check) wants to rebuild my transmission & Oil Pan Gasket so Parts $1,895.00 Labor (84.50 Tax 170.55 total $3,050.05. HELP my transmission runs beautiful the car purrs like a kitten why all of this work - is it needed HELP again.

Has not been fixed. GM refuses to do anything, even though its a design problem.
Perhaps a class action would get some response.