2005 Cadillac STS Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2005 Cadillac STS

2005 Cadillac STS Problems

The Check Engine Light With Code: P0011, P0014, P0021, P0024, P0341, P0346, P0336, and/or P0391

Vehicles with certain V6 engines may illuminate the Check Engine Light one or more of the following codes: P0011, P0014, P0021, P0024, P0341, P0346, P0336, or P0391. Our technicians tell us that some vehicles may require a powertrain control module (PCM) software update to correct this issue. Other vehicles may have excess camshaft end play on one or both cylinder heads which will need to be corrected using special procedures outlined by GM.

Check Engine Light Due to Loose or Worn Gas Cap

A loose or worn gas cap could be cause the Check Engine Light to illuminate.

Contamination of extended life coolant
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.

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2005 Cadillac STS Questions

05 cadillac sts with a 4.6 northstar that will not idle what is the 1st fix (1 answer)

05 sts 4.6 cranks but wont idle without feathering throttle. throttle body has been replaced with sensors. it is throwing multiple codes, P2637 P0113 P0106 P1137 P1157 P0017 P0019 P0014 P0102 P0122 P0223 P0638 P1101 P0068 P0101 P2108 P0171 P0174 P0113 P0014 P0102 P1101 P0106 it wont idle cold nor...

how to reset theft deterrent systems (1 answer)

my 2005 sts always seem to have a bump when pulling off is the transmission slip (2 answers)

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2005 Cadillac STS Recalls

Rear Suspension Link Breaks

A rear suspension toe link could fracture and result in the rear wheels changing direction. This can cause loss of vehicle control. Dealers will inspect the right and left toe links and replace them as required free of charge to resolve the concern.

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2005 Cadillac STS Reviews

the car has all the power you will need. it rides like a dream
my STS is a nice looking car but I have problems after problems one of the air suspension went out cost me 1000 dollar to replace it right now it's making noise. i beleive it's a electrical problems now. I will never buy another cadillac. it doesn't hold its value, The back bumper coming apart. and it hard to find someone to work on them beside the dealers.
Nice car. I have the V8, LOTS of power and pretty good mpg. Handles great, looks great. Had some issues with windows, misc noises.

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