Haynie Posted November 18, 2017 Share Posted November 18, 2017 I have an '09 3.0L v6 auto trans with 184k miles. I bought it seven years ago, CPO from a Ford dealer at 34K miles and it's the most reliable car I've ever owned. Can runs well, but just developed an acceleration hesitation: If I'm cruising, then step on the throttle, at 1700 to 2000 rpm, the engine hesitates. after that it's fine. It doesn't do it all the time. when I think the issue is gone, it shows up again. then it's hard to replicate the issue. The air filter is fresh and clean, and I recently cleaned the MAF sensor with the correct spray and replaced the PCV. It seemed to help a little the issue is still there. There is no Check Engine Light on and the car is consistently getting great gas mileage and pulls as strong as ever. What is this? My guess is it could this be an O2 sensor issue. Even if it's not, I'd love to change them. Is there a video or photo of the O2 sensors' locations? thanks 0 Quote Link to comment Share on other sites More sharing options...
eGuru Posted November 19, 2017 Share Posted November 19, 2017 I would replace the throttle body. 0 Quote Link to comment Share on other sites More sharing options...
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