My car is idling bad?

2017 FORD EXPLORER
160,000 MILES • 3.7L • 6 CYL • 4WD • AUTOMATIC
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WILL5059
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  • 1 POST
It was a police car. I have changed the pcv valve and it still idles bad. It drives fine. There was very little oil inside the intake sides. It does blow smoke out of the oil fill cap.
Aug 10, 2025 at 10:24 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,835 POSTS
  • ASE Certified Mechanic
Okay, the first thing we need to do is run the codes to see which cylinder is having an issue, the code number should tell us which one it is. Then we can go from there. Here is a video to help.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Can you upload a short video on what is going on from under the hood, it will make the repair much easier.

This guide is fantastic well.

https://www.2carpros.com/articles/repairing-engine-rough-idle-issues

I will be glad to help but I need more information from you.
Aug 11, 2025 at 12:35 PM
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