06' Cadillac/used cars that have been sitting

99PONTIACGP

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Within the next few days I'm checking out a 06' Cadillac STS with 107k. The owner said it's been in the garage for the last two years.

Is there anything in particular I should concentrate on with a car thats been sitting that long? Any known issues with the Cadillac 's?
 

CMNTMXR57

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All it's electronics, If it's been siting for that time and not been run, all the modules and electronics shut down. Then when you repower it (via starting), sometimes things don't come back alive all at once for some reason, setting body codes. I know if I don't go re-synch my keyfob (by unlock/locking the doors) every month or so while in storage, it shuts down all RKE (Remote Keyless Entry function), until I stick the fob in a slot in the center console for it to re-synch things. A lot depends on the options you get. Engine. Is it V6 or a Northstar V8? Is it just RWD or AWD? Does it have fancy shit like HID's and adaptive headlights, HUD, rainsense windshield wipers, Magneto shocks, navigation, heated/cooled seats, etc...?

If it's a Northstar, it'll leak oil from the cam covers if not already, eventually... ANd by now most of the head/stud issues with them had been sorted out.

Overall though, the car is a pretty solid car.

A lot can be gleened from here;

 
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Flyn

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I have an SLS. As mentioned, electronics. Lights, seats, steering wheel sensor, etc. I bought my car dirt cheap because the mirrors and stereo amplifier were bad. No radio and no mirrors. Replaced the mirrors and amplifier with used Ebay parts.

If you do get the oil leaks, some of the repairs require the Northstar engine to be removed making the repair cost prohibitive.

Run the car for codes. Code scanners are cheap.

Check the tires after that much time sitting, too. Flatspots? Old tires? Also, I'm not sure if '06 has the air suspension but look for codes for it if it does. You will probably get a lot of codes unless the car has been maintained. You can pick these cars up for next to nothing because of the Northstar and potential repair costs.
 

CMNTMXR57

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Cam cover gasket replacement can be done in car.

2006 is RWD, so they are somewhat easier than FWD N*'s and won't require the additional step of removing the water pump drive shaft and seal (on the front cam cover) like FWD versions.
 

Flyn

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Interesting. I currently have a new oil leak that is dripping on one of the exhaust manifolds or pipes. Need to get in there and see where it is coming from.
 
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99PONTIACGP

99PONTIACGP

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Screenshot_20191119-234728_OfferUp.jpg


2006 Cadillac STS V6 ONLY 107,600 miles. No check engine light or history of eng probs. Body in great condition. Clean interior with leather. Bose speakers. Remote start in key fob.
 

CMNTMXR57

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Interesting. I currently have a new oil leak that is dripping on one of the exhaust manifolds or pipes. Need to get in there and see where it is coming from.
That is your cam cover leaking. It likes to leak around the corners and notches around the VVT actuators IYours won't have this). The front is actually really easy to do, you do have to R&R the water pump drive shaft that comes out of the upper drivers side of the cover and I recommend replacing the seal for it at the same time.

The back side of the motor requires EGR removal and then you're blessed with having to work around an inflexible main wiring harness making R&R of that cover a tedious task.

The only thing I can think of that would require engine removal would be recommended if you're re-studding it due to the notorious N* head stud issue. Another might be of you need to replace any pressure control solenoids in the 4T80 trans. Those are behind the cover on the drivers side and in order to get that cover out of the way to get to them, would require at least dropping of the engine/trans enough to clear the front drivers side frame rail.

I can only see the one pic with the Pep Boys stick on fender vent. That has GOT to go. The main issue with teh 3.6, and this has plagued the engine across all platforms it's been in is timing chain issues (stretching). May want toinquire about that and if the owner hasn't got a clue, take the VIN# to a GM dealer and have it run through VIS to see any service history.
 

Flyn

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Thanks I will check that out.

To the OP, you can see some of the issues with the cars from our posts. Still, I have gotten 85K miles out of mine since I bought it with 55K. It has been a good car.
 

Yaj Yak

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if you want an older GM halfway decent inside car find some buick with a 3800 and not worry about shit.

i can't believe no one has said fuck that to this STS. :rofl:
 

CMNTMXR57

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I don't because having worked on them in a GM stealership and now that I've now owned three vehicles with N* designed engines and they've been stone cold reliable and overall, putting aside the size 10 engine in a size 5 dress issue, pretty easy to work on as they're all modular in design.

Just like any car though, they have their nuances.
 

daturbosix

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key question. how much?
100k miles........ sitting for a while..... smells like geritol and iceyhot... idk.. better be CHEAP.
 

Bub

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if you want an older GM halfway decent inside car find some buick with a 3800 and not worry about shit.

i can't believe no one has said fuck that to this STS. :rofl:
This. I don't have much exposure other than a buddy of mine got one for a steal and it's been nickle and diming him since
 

CMNTMXR57

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I mean, between the options of a 3800 and a Deathstar, I will ALWAYS advise on the 3800 for sheer durability. But that's not what was asked here.
 

daturbosix

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the N* game impoved after a certain year when they weren't so problematic as their older counterparts. i want to say that was around 04/05? i forget.

but alot of these things got the 6cyl. (early 3.6L)
 

daturbosix

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I mean, between the options of a 3800 and a Deathstar, I will ALWAYS advise on the 3800 for sheer durability. But that's not what was asked here.
for as cheap as the DTS got, i often thought about L67 swapping one.
 

CMNTMXR57

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One of the Admins on the Bonneville forum did that with a GXP.

Speaking of which, there is a blue Bonneville GXP in a driveway off Raddant by you. I've been going by it every day for several years and at one time it was a daily driver. Then it was sitting in the garage for awhile, now it's outside. So me thinks it's a stud issue and would love for the owner to be out when I go by. If I could get it cheap, then restud it, I'd love to have another GXP.
 

daturbosix

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One of the Admins on the Bonneville forum did that with a GXP.

Speaking of which, there is a blue Bonneville GXP in a driveway off Raddant by you. I've been going by it every day for several years and at one time it was a daily driver. Then it was sitting in the garage for awhile, now it's outside. So me thinks it's a stud issue and would love for the owner to be out when I go by. If I could get it cheap, then restud it, I'd love to have another GXP.
dude in palatine i know that does those N* stud kits. if you bring him the engine, he does it all for like $650
 

CMNTMXR57

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Pick up the car for cheap, $650 later, you have another daily that'll last you for awhile. Winner, winner, chicken dinner.

I just google mapped it, 141 S. Raddant (just south of Wilson). You can see it in the garage acting as a workbench in front of the Xterra in the drive way... If you want to go inquire. :D
 

daturbosix

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well, $650 plus labor yanking it and reinstalling it. and fluids, and belts, and ect.

i might wander over there......
 

CMNTMXR57

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I was thinking I'd just R&R the engine and take it to them.

Yea, it's been outside now for a month or so and hasn't moved.
 

daturbosix

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but your time is money. gotta consider that when purchasing a repairable.
 

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