Thread: Seafoam product

I did it on my unmaintained 192K mile gtp and didn't have a problem with it and it ran a whole lot better afterward.

Originally Posted by Truckin2001

Regal - As far as I can tell, the individual I purchased the car from did an okay job maintaining the car. The left the ERG issue alone (was throwing a code for ERG valve stuck open) for several months. So there was some carbon build up around the ERG mount and the spark plugs have a bit of carbon built up on them as well.

For the EGR, I recommend removing it and soaking it for a day with penetrating oil. Just costs you the penetrating oil and an EGR gasket will no ill effects.

If you do the Seafoam, follow instructions exactly as listed. Check your rubber hoses also. The Honda had some hoses eaten afterwards. If your car is supercharged, seek an alternate path for the intake portion of the process. You don't want to take anything off the supercharger rotors as you will loose efficiency. Do some searches on here and the web on Seafoam as it's been discussed a bit.