We have sent people home with a $200 sensor fix when another shop quoted them a rebuild. A code does not tell you the unit failed, it tells you where to look. The free diagnosis is a full powertrain scan, a real road test with the symptom you described, a fluid and leak check, and a written line-by-line quote for whatever we find. Then you decide: pay it, finance it, or take your keys and owe us nothing. No diagnostic fee, no applied-toward-the-repair asterisk. ¡Hablamos español!