Tl* the contact owns a 2005 cadillac sts. While driving 35 MPH, the vehicle shook and the check engine light illuminated. The vehicle was driven back to the contact's residence and smoke emitted from the engine. The vehicle was able to restart. The vehicle was towed to an independent mechanic who diagnosed that the ignition coil had total meltdown surrounded by small flames, and the fuse was blown for the odd injectors. A fire report was not filed and there were no injuries. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 82,920.
2005 Cadillac STS: check engine light
6 of the 101 complaints about the 2005 Cadillac STS describe check engine light.
- owner complaints
- 6
- of this car's complaints
- 6%
- typical mileage
- 60,000
- recalls
- 0
Check engine light by model year
What owners say
Tl* the contact owns a 2005 cadillac sts. The contact stated while driving 30 MPH, the engine lost power as the engine light illuminated. The contact merged the vehicle to side of the road safely, which was then towed to the dealer. The technician diagnosed that the intake and exhaust manifold needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the issue. The approximate failure mileage was 48,000.
I was driving along a city roadway when the vehicle's stability, traction control, and engine light came on simultaneously when all of a sudden the vehicle just stopped, almost causing the car behind me to collide with my vehicle. I called the dealer, lawley's gm store in sierra vista, az. Where I had just purchased the vehicle and told the service manager what happened...he sent a tow truck to pickup the vehicle and after inspecting the vehicle at the dealership told me it was the throttle body needing replacement...I bought a new one and had it installed. Ran fine for a couple of weeks after which the vehicle began stalling while driving on a city road when the same thing happened again, but this time when the vehicle stopped without any warning causing the vehicles behind me had to swerve around me almost causing accidents with oncoming vehicles. Called the dealer again, had the vehicle towed in and this time was told that the vehicles computer was not programmed right and that it also needed throttle body harness...bought the harness and had it installed as well as the dealer reprogramming the computer. Car did well for a few months when it happened again (vehicle stopping unexpectedly), this time approaching a major crosswalk and once again causing the vehicles behind me to come a abrupt stops, fortunately a city police vehicle was on the opposite side of the crosswalk and the officer witnessed what happened, put his vehicle's emergency lights on and came over to help me push out from the street to a walgreen's parking lot where I once again called the dealer, had it towed to dealer where they told me the throttle body pin connectors had to be soldered on which they did. Car is running ok for now, but I am concerned that I may be driving and the vehicle will once again stop unexpectedly and cause an accident.there are consumer posts on this problem on the web.
Car disabled power under load first time 4 yrs ago. Then for the next 4 years continued to come and go. Still happening to this day. Codes: p0651 and p2108. At various speeds and intermittent times would put on check engine light and traction control light. Car cant accelerate. Have to pull over and restart. Biggest mistake was buying an american car.
The car has had several documented electrical and mechanical failures. Over the past 2 years the car has been shutting down automatically in the middle of traffic. The display shows 'engine power reduced' and is followed by other messages like 'service anti-lock brake sys' or 'service radar' or service stability sys and traction control.' before the car shuts down the traction control is automatically disabled. I have had to bring the car in for the same symptom 4 different times. The in-service dates that were described and documented for this problem are as follows: 1.)february 22, 2008 ' 'poor drag on c102 connector under hood' 2.)april 24, 2009 ' 'failed converter' 3.)october 1, 2009 ' 'ECM failed' 4.)may 5, 2010 ' 'reprogram PCM' all of the above were serviced by classic cadillac saab. Each time they fix something new but the same symptom continues to occur. I am extremely concerned for my family's safety when traveling in the car, especially when it has shutdown numerous times both on a highway and in the middle of an intersection. The car has become a severe liability for both me and my family. Sometime in december 2010 the car had shutdown again and the engine light has been on and off since then.
2005 cadillac sts. Check engine light comes on after repeated attempts to fix. Code po171, po174.
Service bulletins that may apply
- This service bulletin provides guidelines and diagnostic/repair information to technicians regarding...
- This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves...
- This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake...
- This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil...
- This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- This service bulletin provides graphics, information and guidelines for engine component wear to assist...
- Engine
- This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter...
Related recalls
No recalls on record for this model year.
Questions about the 2005 Cadillac STS check engine light
Is check engine light a common problem on the 2005 Cadillac STS?
6 of 101 owner complaints about the 2005 Cadillac STS (6%) mention check engine light. The model year with the most reports is 2006.
Is there a recall or service bulletin for this on the 2005 Cadillac STS?
There are 0 recalls and 100 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2005 Cadillac STS
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