2006 sts runs rough low power

Asked by Jun 02, 2013 at 12:36 PM about the 2006 Cadillac STS V6 RWD

Question type: Maintenance & Repair

Starts up ok.  Press accelerator runs
roughly and lacks power

2 Answers

sounds like a bad egr valve...get the diagnostics read and report....could be TPS, 02, Ambient Air sensor, coolant temp sensor...any form of data...could be as simple as a cracked vacuum line, now~

recommend replacing ole butyl black rubber vacuum hoses with silicone ones~

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