How to fix a car that is misfiring after a rain storm or after driving through a puddle. P0300 P0307
This video will show you a common issue on a 2004 Mercury Mountaineer that when after a severe rain storm or after driving through a puddle your car starts to misfire and how to fix the issue. Sorry for the audio in this video it was made at a loud shop. It is a very simple fix that anyone should be able to do. This issue is very common on these vehicles so I made a video to try and help other people solve similar issues. Common codes are P0307 and P0300.