So I did my second sea foam treatment on my 98' Explorer 4.0 Sohc. First time wnet well ran fine. This time runs rought and is making a tapping noise. What did this stuff do to my engine please help daily driver.

Thanks
Nick

Aim me at njf204

 

Please anyone with any idea please I have to know if I can drive my Explorer or not.

 

Try changing your oil if you haven't already. I add Lucas oil stabilizer to my oil. It helps avoid dry starts and keeps the upper end lubricated at all times.

 

Which one.....
Heavy duty or synthetic?

Just curious, Lucas don't tell you a heck of a lot about the differences between the two although I do like their stuff generally.

 

Did it smoke and behave normally during the treatment? Did you get the vacuum system sealed back up after the treatment? How old are the plugs? I did a treatment on a ranger once that ran worse afterward because the plugs were very badly worn and the SeaFoam cleaned off the carbon that was helping to close the gap.

 

That makes sense about the carbon cleaning off the plugs. I use Heavy Duty Stabilizer.

 

Thanks for the update