had my 05 Cadillac STS tested can some one tell me what they are and a fix?

25

Asked by Sep 04, 2012 at 05:42 PM about the 2005 Cadillac STS 4.6

Question type: Maintenance & Repair

My 05 Cadillac STS starts delayed runs rough and the check engine light is on the Tc light is on and reads power
reduced,in Park it runs rough like it wants to cut off.In drive and reverse it goes to somewhat a normal idle,can't
drive no power. The codes are p2119,p2176,p0638,p0068,p0101,p2135,p0300,They all seem to be connected to
the throttle body some how?What is the fix?and can i change this and if not how much will it run me aprox.

7 Answers

250,705

WOW, that's a lot of codes. First thing what I would do is remove the air intake hose and look at the throttle body assembly and see if it is full of carbon. If it is. clean it up real good, purchase some Throttle body cleaner and spray away. The P0101 is a MAF sensor, I suspect that is dirty too, purchase some CNC MAF cleaner, and spray the filaments Do a search on how to clean properly. Then put everything back together, disconnect the negative battery cable for 15mins and reattch or use the scan tool if you still have it and clear the codes and drive. If the CEL comes back on, check the codes again, if they are the same, i would replace the throttle body assembly, and go from there.

3 of 3 people found this helpful.
Best Answer Mark helpful

Obviously the person asking the question has very, very limited knowledge and the first thing I would NOT do is anything Tom suggested ... Take it to a qualified mechanic! Period, paragraph, end of subject!

25

Tom thank you very much your input helped me get my 05 STS Back on the road and it also helped me to get a better knowledge of a part I've never worked on.It also helped me on my trouble shooting.Once again thanks.

1 of 1 people found this helpful.
25

Joseph you don't deserve a reply but Your funny

1 of 1 people found this helpful.

Here is another one for you. I do not believe "Tom" and both of you are full of Bravo Sierra ... just saying. Oh, and take a grammar lesson or two. Have a nice day :-)

20

"Take it to a qualified mechanic" is not the point of forums.

2 of 2 people found this helpful.

codes on 2005 sts: po174, po420, po171, po897,po115,po218, co561, co450 car stopped running said reduced power speed HELP...

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